CA2216399A1 - An elliptical satellite system which emulates the characteristics of geosynchronous satellites - Google Patents

An elliptical satellite system which emulates the characteristics of geosynchronous satellites

Info

Publication number
CA2216399A1
CA2216399A1 CA002216399A CA2216399A CA2216399A1 CA 2216399 A1 CA2216399 A1 CA 2216399A1 CA 002216399 A CA002216399 A CA 002216399A CA 2216399 A CA2216399 A CA 2216399A CA 2216399 A1 CA2216399 A1 CA 2216399A1
Authority
CA
Canada
Prior art keywords
satellite
earth
during
apogee
satellite system
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
Application number
CA002216399A
Other languages
French (fr)
Other versions
CA2216399C (en
Inventor
John Draim
David Castiel
Kenneth F. Manning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Virtual Geosatellite Holdings Inc
Original Assignee
John Draim
David Castiel
Virtual Geosatellite Holdings, Inc.
Kenneth F. Manning
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23622045&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2216399(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by John Draim, David Castiel, Virtual Geosatellite Holdings, Inc., Kenneth F. Manning filed Critical John Draim
Publication of CA2216399A1 publication Critical patent/CA2216399A1/en
Application granted granted Critical
Publication of CA2216399C publication Critical patent/CA2216399C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1007—Communications satellites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1085—Swarms and constellations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/242—Orbits and trajectories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18576—Satellite systems for providing narrowband data service to fixed or mobile stations, e.g. using a minisatellite, a microsatellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/19—Earth-synchronous stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/195—Non-synchronous stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/42—Arrangements or adaptations of power supply systems
    • B64G1/428—Power distribution and management

Abstract

An elliptical satellite system which carries out communication. The satellite (100) orbits a height above the earth less than that necessary for geosynchronous orbits. When the satellite (100) is near the apogee portion of its orbit, its velocity approximates the rotational velocity of the earth, and during that period it appears to hover over the earth. Each ground station (104) on the earth always communicates a satellite (100) within a predetermined position of its apogee, and hence that satellite (100) appears to the ground station (104) to hover over the earth. The satellite (100) hence does not communicate with any earth station when it is outside of that apogee portion. During the times when the satellite (100) is outside the apogee portion, its communication is therefore shut off to prevent any possibility of interfering with geosynchronous satellites. During this time, the power supply (290) on the satellite is also used to charge a battery on the satellite (100). This enables the power supply (290) to be made smaller by an amount equivalent to the duty cycle of the satellite (100) during the time which it is on.
CA002216399A 1995-03-24 1996-03-22 An elliptical satellite system which emulates the characteristics of geosynchronous satellites Expired - Fee Related CA2216399C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/409,808 US5845206A (en) 1995-03-24 1995-03-24 Elliptical satellite system which emulates the characteristics of geosynchronous satellites
US08/409,808 1995-03-24
PCT/US1996/003867 WO1996031018A1 (en) 1995-03-24 1996-03-22 An elliptical satellite system which emulates the characteristics of geosynchronous satellites

Publications (2)

Publication Number Publication Date
CA2216399A1 true CA2216399A1 (en) 1996-10-03
CA2216399C CA2216399C (en) 2003-02-04

Family

ID=23622045

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002216399A Expired - Fee Related CA2216399C (en) 1995-03-24 1996-03-22 An elliptical satellite system which emulates the characteristics of geosynchronous satellites

Country Status (5)

Country Link
US (4) US5845206A (en)
EP (1) EP0815658A4 (en)
AU (1) AU5426696A (en)
CA (1) CA2216399C (en)
WO (1) WO1996031018A1 (en)

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Also Published As

Publication number Publication date
US6577864B2 (en) 2003-06-10
US5957409A (en) 1999-09-28
WO1996031018A1 (en) 1996-10-03
EP0815658A1 (en) 1998-01-07
US20010012759A1 (en) 2001-08-09
EP0815658A4 (en) 2000-10-18
CA2216399C (en) 2003-02-04
US5845206A (en) 1998-12-01
AU5426696A (en) 1996-10-16
US6263188B1 (en) 2001-07-17

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