WO2001047171A3 - Strong signal cancellation to enhance processing of weak spread spectrum signal - Google Patents
Strong signal cancellation to enhance processing of weak spread spectrum signal Download PDFInfo
- Publication number
- WO2001047171A3 WO2001047171A3 PCT/US2000/042171 US0042171W WO0147171A3 WO 2001047171 A3 WO2001047171 A3 WO 2001047171A3 US 0042171 W US0042171 W US 0042171W WO 0147171 A3 WO0147171 A3 WO 0147171A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- strong
- weak
- spread spectrum
- predicted
- Prior art date
Links
- 238000001228 spectrum Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/246—Acquisition or tracking or demodulation of signals transmitted by the system involving long acquisition integration times, extended snapshots of signals or methods specifically directed towards weak signal acquisition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001547785A JP4738692B2 (en) | 1999-12-14 | 2000-11-14 | How to cancel a strong signal and strengthen a weak spread spectrum signal |
EP00992803A EP1238485B1 (en) | 1999-12-14 | 2000-11-14 | Strong signal cancellation to enhance processing of weak spread spectrum signal |
AT00992803T ATE305677T1 (en) | 1999-12-14 | 2000-11-14 | STRONG SIGNAL SUPPRESSION TO IMPROVE PROCESSING OF WEAK SPREAD SPECTRUM SIGNALS |
DE60022901T DE60022901T2 (en) | 1999-12-14 | 2000-11-14 | STRONG SIGNAL SUPPRESSION TO IMPROVE THE PROCESSING OF WEAK SPREADING SPECTRUM SIGNALS |
AU47078/01A AU4707801A (en) | 1999-12-14 | 2000-11-14 | Strong signal cancellation to enhance processing of weak spread spectrum signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/461,123 | 1999-12-14 | ||
US09/461,123 US6282231B1 (en) | 1999-12-14 | 1999-12-14 | Strong signal cancellation to enhance processing of weak spread spectrum signal |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001047171A2 WO2001047171A2 (en) | 2001-06-28 |
WO2001047171A3 true WO2001047171A3 (en) | 2001-11-15 |
Family
ID=23831315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/042171 WO2001047171A2 (en) | 1999-12-14 | 2000-11-14 | Strong signal cancellation to enhance processing of weak spread spectrum signal |
Country Status (9)
Country | Link |
---|---|
US (3) | US6282231B1 (en) |
EP (1) | EP1238485B1 (en) |
JP (1) | JP4738692B2 (en) |
KR (1) | KR100676780B1 (en) |
CN (1) | CN1409904A (en) |
AT (1) | ATE305677T1 (en) |
AU (1) | AU4707801A (en) |
DE (1) | DE60022901T2 (en) |
WO (1) | WO2001047171A2 (en) |
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Also Published As
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WO2001047171A2 (en) | 2001-06-28 |
ATE305677T1 (en) | 2005-10-15 |
US6707843B2 (en) | 2004-03-16 |
JP4738692B2 (en) | 2011-08-03 |
US20050032513A1 (en) | 2005-02-10 |
JP2003518819A (en) | 2003-06-10 |
KR20020068055A (en) | 2002-08-24 |
KR100676780B1 (en) | 2007-02-01 |
AU4707801A (en) | 2001-07-03 |
US20010046256A1 (en) | 2001-11-29 |
EP1238485A2 (en) | 2002-09-11 |
EP1238485A4 (en) | 2003-05-07 |
US6282231B1 (en) | 2001-08-28 |
DE60022901T2 (en) | 2006-06-29 |
EP1238485B1 (en) | 2005-09-28 |
DE60022901D1 (en) | 2006-02-09 |
CN1409904A (en) | 2003-04-09 |
US7116704B2 (en) | 2006-10-03 |
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