CN104183921A - Mobile satellite communication antenna polarization tracking method and tracking system - Google Patents
Mobile satellite communication antenna polarization tracking method and tracking system Download PDFInfo
- Publication number
- CN104183921A CN104183921A CN201310193834.4A CN201310193834A CN104183921A CN 104183921 A CN104183921 A CN 104183921A CN 201310193834 A CN201310193834 A CN 201310193834A CN 104183921 A CN104183921 A CN 104183921A
- Authority
- CN
- China
- Prior art keywords
- polarization
- antenna
- signal
- satellite
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000010287 polarization Effects 0.000 title claims abstract description 162
- 238000004891 communication Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000002955 isolation Methods 0.000 claims abstract description 43
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 18
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 5
- 238000005388 cross polarization Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000000205 computational method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention provides a polarization tracking method and tracking system for a mobile satellite communication antenna. The system comprises the satellite communication antenna comprising a receiving antenna and a transmitting antenna which are used for receiving and transmitting orthogonal polarization satellite signals respectively; a polarization isolation degree measurement portion which is used for obtaining and measuring signal levels of the pair of orthogonal polarization signals, calculating the ratio of the obtained signal levels and making a comparison between the ratio and the predetermined threshold value; and a tracking control portion which is used for controlling the antenna to emit and receive polarization angle adjustment synchronously according to the comparison result output from polarization isolation degree measurement portion. The polarization isolation degree measurement portion comprises an orthogonal polarization signal decomposition portion which is used for carrying out decomposing processing to generate a pair of mutually-orthogonal polarization signals according to satellite signals received from the receiving antenna.
Description
Technical field
The present invention relates to a kind of polarization tracking method and tracking system of mobile-satellite/microwave communication antenna, the polarization isolation execution control relating in particular to based on satellite antenna is followed the tracks of and the method and system to satelloid.
Background technology
Communication in moving is the abbreviation of " the ground satellite station communication system in mobile ".By communication in moving system, the mobile carrier such as vehicle, steamer, aircraft can real-time tracking satellite in motion process etc. platform, transmit incessantly the multimedia messagess such as voice, data, image, can meet the needs of the multimedia communication under various military-civil emergency communications and mobile condition.
For fixed satellite communication system, the key link of mobile satellite communication system is full-automatic Satellite Tracking communication antenna (full-automatic Satellite Tracking communication antenna is commonly called as " communication in moving " antenna).This kind of antenna need to have the ability that automatic satellite tracking is aimed at the volley, and therefore, after this kind of antenna is installed, satellite antenna can keep the aligning of satellite at the volley, thereby makes satellite communication system keep at the volley continual communication capacity.
The follow-up control of full-automatic Satellite Tracking communication antenna is embodied in conventionally in the tracking/maintenance of following four physical quantitys, the physical quantity of these four tracking/maintenances respectively: azimuth, the angle of pitch, roll angle, polarizing angle.That is to say, full-automatic satellite tracking antenna system should have the maintenance ability constant with respect to azimuth, the angle of pitch, roll angle, the polarizing angle of satellite in carrier movement.
With regard to current full-automatic Satellite Tracking communication antenna, owing to having ripe transducer and tracking and controlling method aspect antenna azimuth, the angle of pitch, roll angle kinetic measurement, therefore, large multiaerial system all can be carried out accurately dynamically closed loop tracking and control physical parameters such as azimuth, the angle of pitch, roll angles.But, for the polarization angle of antenna, owing to there is no so far desirable antenna polarization parameter dynamic measurement method, so dynamic tracking and the maintenance at antenna polarization angle, be the difficult problem in engineering always.This is also up to now, and communication in moving antenna is difficult to meet the main cause that satellite company networks and requires always.
A lot of research and practices carry out in this field in recent years, but research and practice is based upon on following two kinds of methods mostly:
1, the auxiliary inertial measurement method of satellite fix
Utilize inertia measurement and satellite positioning device, motion/the angular displacement of carrier and position are carried out to dynamic accurately measurement, system is by the orientation measuring, pitching, roll equal angles and displacement, by the Coordinate Transformation Models between the kinematics model set up and antenna, carrier, calculate, calculate corresponding polarizing angle departure, via servo system, polarizing angle departure is regulated again, finally realize dynamic tracking and the control of polarizing angle.This kind of tracking is widely used in (seeing patent documentation 1) among the equipment of full-automatic Satellite Tracking communication antenna system at present.
Because this kind of tracking and controlling method directly do not measured the polarizing angle of antenna or polarizing angle error, therefore this method is actually a kind of indirectly polarizing angle tracking, utilizes the orientation, pitching, roll equal angles and the displacement that measure to calculate a kind of method of polarizing angle regulated quantity.Owing to cannot polarizing angle and error directly being measured and FEEDBACK CONTROL, from control theory, this kind of method still belongs to a kind of polarizing angle open-loop control method.The basis of this kind of method enforcement depends on the inertia measurement of attitude of carrier and the location to carrier, and " drift " that inertia system produces is in time difficult to avoid, this measure error that makes system increases with the increase of service time, finally follows the tracks of " inefficacy ".This tracking " inefficacy ", although can adopt more accurate inertial measurement system to postpone the generation of " inefficacy ", or is controlled error to a certain extent/is calibrated.But because inertial measuring unit is extremely expensive, the cost price of paying often makes people forbidding.Therefore, adopt the antenna system of this tracking, always not ideal enough in polarization tracking performance and cost.
2, satellite-signal strength measurement method
Utilizing the intensity of satellite-signal to regulate the aligning at satellite antenna polarization angle is another conventional polarization aligning/matching process.Theoretically, the in the situation that of aim in polarization/coupling of satellite antenna, signal will obtain best reception, and now, the intensity of satellite-signal is also the strongest.But due to existence and the depolarisation effect of satellite-signal in transmitting procedure of external interference signals, usually making the strongest angle of signal of measuring is exactly not necessarily correct polarization angle.And, due to the various reasons on Principle of Antenna, Antenna Design, antenna manufacture, signal measurement, make satellite-signal intensity can not reflect very sensitively the variation of antenna polarization angle.Therefore, use this kind of method to carry out polarization tracking and often bring larger polarizing angle matching error.
The subject matter of the above method is in the situation that antenna cannot carry out introspection to polarizing angle or polarizing angle error, have to indirectly calculate, because calculate that the physical quantity and the relation between polarizing angle that adopt are too indirect, or responsive not, add that polarizing angle or the polarizing angle departure extrapolated finally cannot measure and verify, therefore error, the error of calculation, the execution error measured are difficult to tolerance, cannot carry out the error of closed loop controls, thereby producing larger error, system is difficult to realize higher tracking accuracy.
Patent documentation 1:CN101916908A, " electronic-control variable polarization system of moving communication panel antenna and Electronic Polarization method "
Summary of the invention
In view of the problems referred to above of the prior art, inventor proposes by the polarized signal of antenna reception being decomposed and measuring and follow the tracks of to realize to the tracking of polarizing angle and aligning decomposing the polarization isolation of rear signal.According to antenna polarization tracking of the present invention and tracking system, can when obtaining higher tracking accuracy, reduce system cost.
Inventor recognizes the following feature of em polarization ripple in mobile satellite communication: when antenna mate with the polarizing angle of satellite polarized electromagnetic wave correct after, will follow simultaneously and carry out two features: the polarized electromagnetic wave signal that 1, polarizing angle coupling aft antenna receives is the strongest; 2, after polarizing angle coupling, in the polarised direction of/quadrature vertical with correct polarization, the signal of antenna reception is the most weak.And the generation together simultaneously of this two specific character, mutually corresponding.When setting up, a characteristic must follow the existence of another characteristic.A characteristic does not exist another characteristic of following must lose yet.Specifically, establishing polarization mismatch angle is Δ, and polarization loss is Lp, and cross polarization isolation is Sp, and the pass that can obtain between them according to EM theory is:
Lp=-20lg(cosΔ)dB
Sp=-20lg(sinΔ)dB (1)
As can be seen here, the mismatch/error of polarizing angle will directly cause cross polarization isolation to decline.Otherwise, the reducing of the inevitable corresponding polarizing angle error of the raising of cross polarization isolation.
From EM theory, polarized electromagnetic wave signal all can be decomposed into the polarized electromagnetic wave signal of two quadratures arbitrarily, otherwise two orthogonal polarization electromagnetic wave signals also can synthesize single polarized electromagnetic wave signal.
For example: a linear polarised electromagnetic wave just can be decomposed into the orthogonal circular polarizations ripple that two amplitudes equate, rotation direction is contrary.
If the linear polarized wave E propagating along Z axis and the angle of Y-axis are ω t,
E=E
0e
-jβZ=[e
xE
0cosωt+e
yE
0s inωt]e
-jβZ (2)
According to Euler's formula cos ω t=(e
j ω t+ e
-j ω t)/2 and sin ω t=(e
j ω t_e
-j ω t)/2j, obtains following expression:
E=1/2E
0(e
xe
jωt+je
ye
-jωt)e
-jωt+1/2E
0(e
xe
jωt-je
ye
-jωt)e
-jωt(3)
In this expression formula, first, the right is left-hand circular polarization ripple, and second is right-handed circular polarization ripple, and both amplitudes are 1/2E
0.By the polarization angle to reception antenna, regulate, measure and the amplitude of the pair of orthogonal signal of more above-mentioned acquisition, can when the two ratio is obtained maximum, determine the correct coupling at antenna polarization angle.
Core of the present invention is to adopt antenna polarization isolation dynamic measurement method to substitute polarizing angle kinetic measurement or the foregoing indirect polarizing angle method of measurement that is difficult to Project Realization, thereby realizes the dynamic alignment of antenna polarization.The physical parameter that reflects antenna polarization isolated instances in engineering is called: polarization isolation.This method can also be described as substituting polarizing angle measurement with the measurement of polarization isolation, by keeping enough polarization isolation (such as polarization isolation >=30dB, conventionally can between 20-40dB, set a decision threshold), realize the antenna polarization angular alignment (such as: polarizing angle error≤0.2 degree) of enough accuracy.
Although the measurement that receives the polarization isolation of signal for satellite antenna in prior art has proposed multiple effective method.Yet these technical schemes are that the rest mass index of itself is considered using polarization isolation as orthogonal polarization satellite-signal, and do not exist the polarization isolation that utilizes satellite antenna to receive signal dynamically to control the technology enlightenment of polarizing angle coupling.And the method for measurement of these polarization isolations also cannot be adapted to the application of communication in moving antenna.In other words, before the present invention, in prior art, do not propose the polarization isolation that satellite antenna receives signal and mate with antenna polarization angle and between (rather than signal strength signal intensity maximum or signal quality best), there is the technical scheme that direct this feature of being closely related property can be used for realizing the tracking of antenna polarization angular motion state.
Antenna polarization isolation sensitive, relatively easily measure, so, this kind of method can obtain the polarizing angle tracking accuracy higher than conventional method, embodied again and utilize polarization isolation to suppress the original idea that contrapolarization signal disturbs simultaneously, also more can reflect that utilizing polarization of electromagnetic wave characteristic to suppress contrapolarization disturbs, and realizes the engineering purpose of polarization multiplexing.
The present invention proposes a kind of polarization tracking system for mobile satellite communication antenna, it comprises: satellite communication antena, comprises reception antenna and transmitting antenna, for receiving and launch the satellite-signal of orthogonal polarization; Polarization isolation measure portion, for obtaining and measure the signal level of pair of orthogonal polarized signal, calculates the ratio of gained signal level and described ratio and predetermined threshold is compared; Divide with tracking control section, for the adjusting of the comparative result Synchronization Control antenna transmission based on described polarization isolation measure portion output and reception polarization angle.
Described polarization isolation measure portion also comprises that orthogonally polarized signal decomposes part, for decompose the polarized signal that produces a pair of quadrature each other according to the satellite-signal receiving from reception antenna.
Orthogonally polarized signal decomposes part for the satellite-signal receiving from reception antenna is decomposed into pair of orthogonal polarized signal, and exports described pair of orthogonal polarized signal to described polarization isolation measure portion simultaneously.
At described orthogonally polarized signal, decompose in the pair of orthogonal polarized signal of decomposed generation, conventionally the signal after one of them decomposition mates with the electromagnetic wave signal polarization receiving, real useful satellite-signal or be called main polarized signal namely, signal and polarized electromagnetic wave/main pole signal in orthogonal of mating after another decomposition are a kind of interference signals being present in cross polarization.In satellite communication, the polarized signal of this pair of quadrature is each other conventionally corresponding to perpendicular polarization signal and horizontal polarization signal, or corresponding to ± 45 ° of orthogonally polarized signals.
When the ratio of described signal level is less than predetermined threshold, described tracking control section is divided the polarization angle that changes antenna, and control described polarization isolation measure portion and again carry out measurement and compare, until ratio is more than or equal to described predetermined threshold, now described tracking control section divides judgement satellite communication antena to realize polarization angle automatching.
Polarization coupling of the present invention/regulate and decomposition of polarization wave part, can adopt various ways to realize, comprising the several different methods such as rotating media method that adopt digital phase shifter method, numeral or simulation power splitter method, motor to drag in circular waveguide, carry out the polarization adjusting of antenna and the signal receiving is carried out to polarization decomposing.And this kind of method is applicable to the antenna of any type, comprising: micro-band class array antenna, waveguide class array antenna, various reflection Noodles antenna (comprising parabolic antenna, cylindrical reflector antenna) etc.
According to embodiments of the invention, according to predetermined period, carry out measurement and the comparison of polarization isolation, and after judging that satellite communication antena has been realized correct polarization angle automatching, in predetermined period, keep current polarization angle.The described cycle can arrange as required according to the specific environment of mobile satellite communication application and the motion/rotation situation of antenna carrier.
The invention allows for a kind of polarization tracking method for mobile satellite communication antenna, comprising: 1) reception antenna receiving satellite signal via satellite; 2) control polarization and regulate parts that one of them polarized signal is mated with satellite-signal polarization, thereby make the satellite-signal receiving reach maximum; 3) decompose the polarized signal that receives a pair of quadrature each other of signal acquisition the signal level of measuring described pair of orthogonal polarized signal; 4) calculate this level ratio to orthogonally polarized signal obtain, and described ratio and predetermined threshold are compared; With 5) adjusting of output control receiving polarization angle based on described comparison, make two polarized signal ratios of quadrature keep being greater than predetermined threshold values; 6) synchronous equal angles ground regulates the polarization adjuster that transmits and receives antenna, makes the polarization that transmits and receives antenna realize synchronous tracking simultaneously.
When described ratio is more than or equal to described predetermined threshold, judges satellite communication antena realization polarization angle automatching, and keep the current polarization angle of satellite communication antena; And when described ratio is less than described predetermined threshold, change the polarization angle of satellite communication antena, and again perform step (1) to (5).
For aim at/coupling of the polarization of transmitting antenna/follow the tracks of, if by the polarizing angle adjuster of transmitting antenna and reception antenna in laboratory calibration in advance consistent (or guarantee on Design and manufacture, or with computational methods to and dynamic calibration.And note transmitting polarizing angle with receive polarizations angle quadrature each other between the two), just can use with receiving polarization regulates that synchronize in angle, equivalent method of adjustment to adjust the polarizing angle (that is: making the polarizing angle of transmitting antenna regulate equal angular in same direction) of transmitting antenna, in the aim at/coupling that realizes receiving polarization/when following the tracks of, when realizing emitting electromagnetic wave polarizing angle and receiving the synchronous tracking at polarization of ele angle/realize transmitting antenna and receiving polarization, aim at.Although transmit with receive signal and conventionally differ 90 degree in polarization in angle, and frequency of utilization is also different, and this is a constant polarization angle difference, does not affect the use of present principles.Therefore, the present invention is a kind of method at can simultaneously dynamically adjust/tracking/coupling transmitting antenna polarizing angle and receiving polarization angle.
Accompanying drawing explanation
Following description in conjunction with the drawings, will more easily understand the present invention and more easily understand its advantage of following and feature, wherein:
Fig. 1 is according to the general structure block diagram of the polarization tracking system for mobile satellite communication antenna of the present invention;
Fig. 2 is according to the structured flowchart of the polarization tracking system of the use array antenna of first embodiment of the invention;
Fig. 3 is according to the structured flowchart of the polarization tracking system of the use parabolic antenna of second embodiment of the invention;
Fig. 4 is according to the flow chart of mobile satellite communication antenna polarization tracking of the present invention; With
Fig. 5 is a kind of example embodiment that orthogonally polarized signal decomposes part.
Embodiment
For content of the present invention is known and easy to understand more, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.In the present invention, by way of example, the antenna polarization tracking system that the present invention is proposed and square ratio juris and example embodiment are illustrated, but the invention is not restricted to the concrete form of disclosed preferred embodiment.Those skilled in the art can modify and modification to the present invention according to content disclosed by the invention, and these are revised and modification also should belong to the scope of protection of the invention being defined by the claims.
As shown in Figure 1, mobile satellite communication antenna polarization tracking system of the present invention comprises that satellite communication antena 1, polarization isolation measure portion 3 and tracking control section divide 4.In polarization isolation measure portion 3, further provide orthogonally polarized signal to decompose part 2, for the satellite-signal receiving is carried out to resolution process, and export the orthogonally polarized signal of a pair of perpendicular polarization and horizontal polarization, or other has one group of signal of orthogonal polarization feature, for example ± 45 ° of orthogonally polarized signals.
The ratio of the two is measured and calculated to the power of 3 pairs of one group of orthogonally polarized signals exporting from orthogonally polarized signal decomposition part 2 of polarization isolation measure portion, to calculate polarization isolation Sp.The calculating of polarization isolation Sp is as shown in formula (4):
Sp(dB)=20log
10(E1/E2) (4)
If polarization isolation Sp is less than certain predefined threshold value (such as 30dB), tracking control section divides the 4 polarization angle adjustment that comprise to satellite communication antena to divide 7 to send control signal, synchronously, equal angles ground changes the polarization angle of two quadratures, then repeat measurement and the compare operation of polarization isolation, until the polarization isolation of antenna is got back to predetermined coupling level (as being not less than 30dB), thereby realization receives and the automatic Polarization of transmitting antenna is followed the tracks of.
Fig. 2 shows according to the structured flowchart of the polarization tracking system of the use array antenna of first embodiment of the invention (antenna using can be phased array antenna, micro-strip array antenna, waveguide class array antenna etc.).Array antenna has wave beam to be controlled flexibly, points to the advantages such as change is rapid, is conducive under framework of the present invention, realize the angular adjustment that polarizes fast and effectively, is particularly suitable for the communication in moving application under high-speed mobile condition.In addition, the volume of digital phase shifter is little, cost is low, can reduce the manufacturing cost and use cost of whole system.
As shown in Figure 2, satellite communication antena 1 consists of array antenna 1a, orthogonally polarized signal in polarization isolation measure portion 3 decomposes part 2 and according to the satellite-signal receiving, decomposites the digital polar signal of one group of quadrature, and tracking control section divides 4 based on polarization isolation measure portion 3, for the result of calculation control figure phase shifter 5 of polarization isolation, to regulate the polarization angle of array antenna 1a.
Fig. 3 shows according to the structured flowchart of the polarization tracking system of the use reflector antenna of second embodiment of the invention.
The attitude adjustment of reflector antenna need to utilize motor to carry out mechanical adjustment, and governing speed and flexibility ratio are restricted, and simultaneously overall volume and the weight of reflector antenna are larger, for the less vehicular applications in space etc., has formed extra cost.But, reflector antenna (for example parabolic antenna) has high, the bandwidth advantages of higher of gain, is therefore suitable for guaranteeing that enough bandwidth and gain margin are to meet the occasions such as emergency communication of big data quantity communication requirement.
As shown in Figure 3, satellite communication antena 1 consists of reflector antenna 1b, orthogonally polarized signal in polarization isolation measure portion 3 decomposes part 2 and according to the satellite-signal receiving, decomposites the digital polar signal of one group of quadrature, tracking control section divides 4 based on polarization isolation measure portion 3, for the result of calculation of polarization isolation, to receive/transmitting polarization adjusting motor 6, to export analog control signals, to drive reception/transmitting polarization to regulate motor 6 to change the polarization angle of antenna.The Orthogonal Decomposition that conventionally polarization of antenna can be regulated and receive electromagnetic wave signal is realized simultaneously.
Fig. 4 shows according to the flow chart of mobile satellite communication antenna polarization tracking of the present invention.Mobile satellite communication antenna polarization tracking according to the present invention comprises:
Step S1) reception antenna receiving satellite signal via satellite;
Step S2) regulate the polarizing angle of antenna and receive by decomposition the signal that signal acquisition pair of orthogonal polarizes;
Step S3) measure the signal level of described pair of orthogonal polarized signal, calculate the level ratio of the pair of orthogonal polarized signal obtaining, and described ratio and predetermined threshold are compared, to determine whether this ratio is greater than predetermined threshold value;
Step S4) if result of determination is yes, enter step S6), judge that antenna reaches polarization matching status, and then in predetermined period, lock polarizing angle degree to keep this state;
If result of determination is no, enter step S5), further regulate the polarization angle of satellite antenna, then return to step S1 and repeat the processing of S1 to S4.
Fig. 5 shows a kind of exemplary device that is applied to provide according to the orthogonally polarized signal in polarization tracking system of the present invention part 2, for linear polarised electromagnetic wave being decomposed into two circular polarization electromagnetic waves of quadrature.Orthogonally polarized signal shown in Fig. 5 provides the circular waveguide 23 that part 2 is equipped with dieelctric sheet by rectangular waveguide 21, square-circle transition waceguide 22 and connected inside to form.During work, TE1O ripple, via rectangular waveguide 21 inputs, converts the TE11 mould in circular waveguide 23 to by square-circle transition waceguide 22.When the absorbing sheet 32 in circular waveguide 23 with respect to the horizontal plane rotates θ angle, can be by electric field E
1resolve into the E ⊥ component vertical with absorbing sheet 32 and the E ∥ component parallel with absorbing sheet 32, wherein E ⊥=E
1cos θ, E ∥=E
1s in θ.
Rotate this dieelctric sheet 32 and can realize and the polarize coupling of angle of the input electromagnetic wave of different polarizing angles, and on this basis, input electromagnetic wave is decomposed into two mutually orthogonal polarity electromagnetic wave components.
Finally it should be noted that: above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not depart from the spirit and scope of technical solution of the present invention.
Claims (10)
1. for a polarization tracking system for mobile satellite communication antenna, comprising:
Satellite communication antena, comprises reception antenna and transmitting antenna, for receiving and launch the satellite-signal of orthogonal polarization;
Polarization isolation measure portion, for obtaining and measure the signal level of pair of orthogonal polarized signal, calculates the ratio of gained signal level and described ratio and predetermined threshold is compared; With
Tracking control section is divided, for the adjusting of the comparative result Synchronization Control antenna transmission based on described polarization isolation measure portion output and reception polarization angle.
2. according to the polarization tracking system of claim 1, wherein said polarization isolation measure portion also comprises that orthogonally polarized signal decomposes part, for decompose the polarized signal that produces a pair of quadrature each other according to the satellite-signal receiving from reception antenna.
3. according to the polarization tracking system of claim 1, wherein said satellite communication antena also comprises that polarization angle adjustment divides, and described tracking control section is divided and controlled the polarization angle that polarizing angle degree adjusting portion assigns to regulate antenna.
4. according to the polarization tracking system of any one in claims 1 to 3, wherein
Described satellite communication antena is array antenna; And
Described polarization angle adjustment is divided by digital phase shifter or power splitter and is formed, and for the polarization angle of pair array antenna, regulates.
5. according to the polarization tracking system of any one in claims 1 to 3, wherein
Described satellite communication antena is reflector antenna; And
Described polarization angle adjustment is divided by polarization and is regulated motor and rotating parts to form, and for the polarization angle of pair array antenna, regulates.
6. according to the polarization tracking system of any one in claims 1 to 3, wherein said pair of orthogonal polarized signal corresponds respectively to perpendicular polarization signal and horizontal polarization signal.
7. according to the polarization tracking system of any one in claims 1 to 3, correspond respectively to ± 45 ° of orthogonally polarized signals of wherein said pair of orthogonal polarized signal.
8. according to the polarization tracking system of any one in claims 1 to 3, wherein said threshold value setting scope is 20-40dB.
9. for a polarization tracking method for mobile satellite communication antenna, comprising:
(1) reception antenna receiving satellite signal via satellite;
(2) regulate the polarizing angle of antenna, and receive signal acquisition pair of orthogonal polarized signal by decomposition;
(3) measure the signal level of decomposing the pair of orthogonal polarized signal obtaining, and calculate the level ratio of resulting pair of orthogonal polarized signal, described ratio and predetermined threshold are compared; With
(4) output control based on described comparison transmits and receives the adjusting of antenna polarization angle.
10. according to the polarization tracking method of claim 9, wherein said control step (4) comprising:
When described ratio is more than or equal to described predetermined threshold, judges satellite communication antena realization polarization angle automatching, and in predetermined period, keep the current polarization angle of satellite communication antena; And when described ratio is less than described predetermined threshold, change the polarization angle of satellite communication antena, and the processing of repeating step (1) to (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193834.4A CN104183921B (en) | 2013-05-21 | 2013-05-21 | Mobile satellite communication antenna polarization tracking and tracking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193834.4A CN104183921B (en) | 2013-05-21 | 2013-05-21 | Mobile satellite communication antenna polarization tracking and tracking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104183921A true CN104183921A (en) | 2014-12-03 |
| CN104183921B CN104183921B (en) | 2017-10-03 |
Family
ID=51964790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310193834.4A Expired - Fee Related CN104183921B (en) | 2013-05-21 | 2013-05-21 | Mobile satellite communication antenna polarization tracking and tracking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104183921B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162489A (en) * | 2015-08-24 | 2015-12-16 | 联想(北京)有限公司 | Communication equipment |
| CN106602264A (en) * | 2016-12-16 | 2017-04-26 | 熊猫电子集团有限公司 | Linearly polarized tracking method for mid-profile parabolic antenna |
| CN106887706A (en) * | 2017-03-17 | 2017-06-23 | 王家齐 | Full-automatic Satellite Tracking communication antenna electronic polarization tracking and device |
| CN109490644A (en) * | 2018-11-09 | 2019-03-19 | 浙江沃科电子科技有限公司 | A method of obtaining antenna for satellite communication in motion directional diagram |
| CN112235020A (en) * | 2020-12-08 | 2021-01-15 | 成都天锐星通科技有限公司 | Phased array antenna polarization tracking method and device and electronic equipment |
| CN113111526A (en) * | 2021-04-21 | 2021-07-13 | 北京航空航天大学 | Antenna isolation degree prediction method based on near-field test data of receiving and transmitting antenna, storage medium and device |
| CN113111524A (en) * | 2021-04-21 | 2021-07-13 | 北京航空航天大学 | Antenna isolation degree prediction method based on receiving and transmitting antenna far field test data, storage medium and device |
| CN115986422A (en) * | 2022-12-02 | 2023-04-18 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
| WO2023065728A1 (en) * | 2021-10-22 | 2023-04-27 | 成都天锐星通科技有限公司 | Fully polarized antenna control method and apparatus, storage medium and terminal device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050260954A1 (en) * | 2002-08-05 | 2005-11-24 | Hamalainen Jyri K | Transmission diversity with two cross-polarised antennas arrays |
| US20100164801A1 (en) * | 2007-06-11 | 2010-07-01 | Bon-Jun Ku | Device for tracking polarization |
| CN101916918A (en) * | 2010-07-01 | 2010-12-15 | 中国电子科技集团公司第五十四研究所 | Automatically polarized adjustment antenna system and polarization calibration method thereof |
-
2013
- 2013-05-21 CN CN201310193834.4A patent/CN104183921B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050260954A1 (en) * | 2002-08-05 | 2005-11-24 | Hamalainen Jyri K | Transmission diversity with two cross-polarised antennas arrays |
| US20100164801A1 (en) * | 2007-06-11 | 2010-07-01 | Bon-Jun Ku | Device for tracking polarization |
| CN101916918A (en) * | 2010-07-01 | 2010-12-15 | 中国电子科技集团公司第五十四研究所 | Automatically polarized adjustment antenna system and polarization calibration method thereof |
Non-Patent Citations (2)
| Title |
|---|
| "动中通"接收天线极化匹配及跟踪技术研究;王道平等;《现代电子技术》;20091231(第12期);第103-105页 * |
| 王道平等: ""动中通"接收天线极化匹配及跟踪技术研究", 《现代电子技术》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162489A (en) * | 2015-08-24 | 2015-12-16 | 联想(北京)有限公司 | Communication equipment |
| CN105162489B (en) * | 2015-08-24 | 2018-01-23 | 联想(北京)有限公司 | Communication equipment |
| CN106602264A (en) * | 2016-12-16 | 2017-04-26 | 熊猫电子集团有限公司 | Linearly polarized tracking method for mid-profile parabolic antenna |
| CN106887706A (en) * | 2017-03-17 | 2017-06-23 | 王家齐 | Full-automatic Satellite Tracking communication antenna electronic polarization tracking and device |
| CN109490644A (en) * | 2018-11-09 | 2019-03-19 | 浙江沃科电子科技有限公司 | A method of obtaining antenna for satellite communication in motion directional diagram |
| CN112235020B (en) * | 2020-12-08 | 2021-02-26 | 成都天锐星通科技有限公司 | Phased array antenna polarization tracking method and device, electronic equipment and readable storage medium |
| CN112235020A (en) * | 2020-12-08 | 2021-01-15 | 成都天锐星通科技有限公司 | Phased array antenna polarization tracking method and device and electronic equipment |
| CN113111526A (en) * | 2021-04-21 | 2021-07-13 | 北京航空航天大学 | Antenna isolation degree prediction method based on near-field test data of receiving and transmitting antenna, storage medium and device |
| CN113111524A (en) * | 2021-04-21 | 2021-07-13 | 北京航空航天大学 | Antenna isolation degree prediction method based on receiving and transmitting antenna far field test data, storage medium and device |
| CN113111524B (en) * | 2021-04-21 | 2021-09-21 | 北京航空航天大学 | Antenna isolation degree prediction method based on far field test, storage medium and device |
| WO2023065728A1 (en) * | 2021-10-22 | 2023-04-27 | 成都天锐星通科技有限公司 | Fully polarized antenna control method and apparatus, storage medium and terminal device |
| CN115986422A (en) * | 2022-12-02 | 2023-04-18 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
| CN115986422B (en) * | 2022-12-02 | 2023-06-23 | 成都知融科技有限公司 | Linear polarization tracking implementation method of phased array antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104183921B (en) | 2017-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104183921A (en) | Mobile satellite communication antenna polarization tracking method and tracking system | |
| CN109143152B (en) | Polarized array direction of arrival and polarization estimation method based on tensor modeling | |
| CN102280719B (en) | Launch phase real-time calibrating device and method based on four unit directional antennas | |
| CN102680953B (en) | Ground phase-correcting method for double-channel tracking system | |
| CN108061888A (en) | Sphere phase array antenna is to the autotracking method of spacecraft dynamic object | |
| CN104614715A (en) | Measurement calibration and polarimetric calibration device for target bistatic radar cross section and measurement calibration method thereof | |
| CN111654335B (en) | Wireless test method of relay data transmission system under whole satellite near field | |
| CN103217589A (en) | Phased array antenna equivalent isolation degree testing method | |
| CN103411528A (en) | Method for calculating electric field probe rotation offset through circular polarization antenna axial ratio directional diagram | |
| CN102135613B (en) | Antenna cross polarization correction method for satellite-borne polarized related completely-polarized microwave radiometer | |
| CN111638502A (en) | Time-base-based transmitting one-way zero-value ranging system for measurement and control communication ground station | |
| CN209119368U (en) | Microwave and the polarization of millimeter wave ultra-wideband multimode are switched fast antenna | |
| CN103022698B (en) | The system of phase array amplitude weighting can be realized | |
| CN105514618B (en) | A kind of mechanical automatic Polarization regulating device and antenna for satellite communication in motion system | |
| CN104362437A (en) | S-frequency-band monopulse self-tracking antenna system | |
| CN109547041A (en) | Circuit and the adjustable microwave power generating device of multiple-channel output occur for microwave power | |
| CN112068087B (en) | Shore-based multi-channel radar aircraft-simulated sea clutter measurement method | |
| CN108020850A (en) | A kind of in-orbit calibration method of Single Channel Monopulse Angle Tracking Systems phase and system | |
| CN110224785A (en) | Distributed interfering beam forming method based on Limited Feedback | |
| Nateghi et al. | The comparison between the TE 21 mode and the four-horn monopulse technique for LEO satellite tracking | |
| Liu et al. | Design and Realization of SCM Network Based on a New Symmetry Array with Five Feed Sources | |
| CN106887706A (en) | Full-automatic Satellite Tracking communication antenna electronic polarization tracking and device | |
| CN107544554A (en) | A kind of combined antenna electric axis overlaps simple method of adjustment | |
| Jing et al. | A multi-targets simulation method based on single channel | |
| CN115575909A (en) | Radio frequency array instantaneous bandwidth expansion method and system based on digital signal processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 100091 Unit 602, Building 4, South Mentou Xinyuan District, Sijiqing Town, Haidian District, Beijing Patentee after: Hao Zhiqiang Address before: Room 1503, Tower No. 4, Laneway 10, Haidian District, Beijing 100089 Patentee before: Hao Zhiqiang |
|
| CP02 | Change in the address of a patent holder | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Hao Zhiqiang Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Hao Zhiqiang Document name: Notice of termination of patent right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20210521 |