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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Unambiguous position determination using two low-earth orbit satellites

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G06G-007/78    G01C-021/00   
미국특허분류(USC) 701/215 ; 701/213 ; 701/225 ; 342/357.06 ; 342/357.08 ; 342/357.1 ; 342/357.16 ; 455/012.1 ; 455/013.2
출원번호 US-0723725 (1996-09-30)
발명자 / 주소
  • Levanon Nadav,ILX
  • Victor Edward B.
  • Vembu Sridhar
출원인 / 주소
  • Qualcomm Incorporated
대리인 / 주소
    Wadsworth
인용정보 피인용 횟수 : 32  인용 특허 : 22
초록
▼

A system and method for unambiguously determining the position of a user terminal (for example, a mobile wireless telephone) in a low-Earth orbit satellite communications system. The system includes a user terminal, at least two satellites with known positions and known velocities, and a gateway (that is, a terrestrial base station) for communicating with the user terminal through the satellites. The method includes the steps of determining a range parameter, a range difference parameter, and either or both of a range-rate parameter and a range-rate diff...

대표
청구항
▼

[ What we claim as our invention is:] [29.]29. A position determining system for a satellite communications system, comprising:a user terminal;at least two satellites with known positions and known velocities;a gateway for communicating with said user terminal through said satellites;range parameter determining means for determining a range parameter;range difference parameter determining means for determining a range difference parameter;at least one of:range-rate parameter determining means for determining a range-rate parameter; andrange-rate differen...

이 특허에 인용된 특허 (22)

  1. Victor Edward B., Ambiguity resolution for ambiguous position solutions using satellite beams.
  2. Wiedeman Robert A. (Los Altos CA) Sites Michael J. (Fremont CA), Closed loop power control for low earth orbit satellite communications system.
  3. Ames William G. (Poway CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA) Gilhousen Klein S. (San Diego CA), Dual satellite navigation system and method.
  4. Maine Kristine P. (Phoenix AZ) Olds Keith A. (Mesa AZ) Davieau Gerald J. (Eldersburg MD), Geolocation responsive radio telecommunication system and method therefor.
  5. Tayloe Daniel R. (Phoenix AZ) Sowles Kenneth L. (Chandler AZ), Location determination method and system using multi-beam satellites.
  6. Wiedeman Robert A. (Los Altos CA), Low earth orbit communication satellite gateway-to-gateway relay system.
  7. MacDoran Peter F. (Pasadena CA) Spitzmesser Donovan J. (La Crescenta CA), Method and apparatus for deriving pseudo range from earth-orbiting satellites.
  8. Zehavi Ephraim (Haifa ILX) Carter Stephen S. (San Diego CA) Gilhousen Klein S. (Bozeman MT), Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking in.
  9. Inamiya Kenichi (Kamakura JPX), Method of determining a position using satellites.
  10. Inamiya Kenichi (Kanagawa JPX), Method of determining a position using satellites.
  11. Olds Keith A. (Mesa AZ), Multibeam position ambiguity resolution.
  12. Taylor Ralph E. (Silver Spring MD) Sennott James W. (Bloomington IL), Navigation system and method.
  13. Levanon Nadav,ILX, Passive position determination using two low-earth orbit satellites.
  14. Attwood Stanley W. (Sun Lakes AZ), Position ambiguity resolution.
  15. Levanon Nadav,ILX, Positioning determination using one low-Earth orbit satellite.
  16. Johnson Russell K. (Half Moon Bay CA), Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote m.
  17. Halavais Richard A. (3815 N. 28 St. Phoenix AZ 85016), Single-point locating system.
  18. Hartman Randolph G. (Plymouth MN), Spoofing detection system for a satellite positioning system.
  19. Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
  20. Araki Noriyuki (Ohmiya JPX) Shinonaga Hideyuki (Hanno JPX) Itoh Yasuhiko (Tokyo JPX), System for determining and registering location of mobile terminal for communication system with non-geosynchronous sate.
  21. Araki Noriyuki (Ohmiya JPX) Shinonaga Hideyuki (Hanno JPX) Itoh Yasuhiko (Tokyo JPX), System for determining and registering location of mobile terminal for communication system with non-geosynchronous sate.
  22. Ignagni Mario B. (Arden Hills MN), True north heading estimator utilizing GPS output information and inertial sensor system output information.

이 특허를 인용한 특허 (32)

  1. Lee, Sang Woo; Kim, Jong Youn, Baseband signal demodulating apparatus and method in mobile radio communication system.
  2. Fujisaki,Iwao, Communication device.
  3. Sendonaris,Andrew, Frequency tracking using pilot and non-pilot symbols.
  4. Odenwalder, Joseph P., High data rate CDMA wireless communication system using variable sized channel codes.
  5. Odenwalder, Joseph P., High data rate CDMA wireless communication system using variable sized channel codes.
  6. Odenwalder, Joseph P., High rate CDMA wireless communication system using variable sized channel codes.
  7. Jandrell, Louis H. M., Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path.
  8. Louis H. M. Jandrell, Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path.
  9. van Diggelen, Frank, Method and apparatus for validating a position in a satellite positioning system using range-rate measurements.
  10. Jandrell, Louis Henry Martin, Method and system for determining carrier frequency offsets for positioning signals.
  11. Hunt,Kenneth Edward; Schmidt,Mark Alvin; Holm,David Roy; Zeitzew,Michael Alan; Stephens,Scott Adam, Method and system for determining the location of a vehicle.
  12. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, Method and system for following a lead vehicle.
  13. Kent, Mark; Landau, Uri M., Method and system for managing, controlling, and combining signals in a frequency selective multipath fading channel.
  14. Kent, Mark; Landau, Uri M., Method and system for managing, controlling, and combining signals in a frequency selective multipath fading channel.
  15. Bromley, Patrick G.; Jandrell, Louis H. M.; Wise, Michael D., Method and system for processing positioning signals based on predetermined message data segment.
  16. Bromley, Patrick G.; Jandrell, Louis H. M.; Wise, Michael D., Method and system for processing positioning signals based on predetermined message data segment.
  17. Bromley, Patrick G.; Jandrell, Louis H. M.; Wise, Michael D., Method and system for processing positioning signals based on predetermined message data segment.
  18. Bromley, Patrick G.; Jandrell, Louis H. M.; Wise, Michael D., Method and system for processing positioning signals based on predetermined message data segment.
  19. Bromley,Patrick G.; Jandrell,Louis H. M.; Wise,Michael D., Method and system for processing positioning signals based on predetermined message data segment.
  20. Jandrell, Louis Henry Martin, Method and system for processing positioning signals in a geometric mode.
  21. Jandrell, Louis Henry Martin, Method and system for processing positioning signals in a geometric mode.
  22. Jandrell, Louis Henry Martin, Method and system for processing positioning signals in a stand-alone mode.
  23. Jandrell,Louis Henry Martin, Method and system for processing positioning signals in a stand-alone mode.
  24. Jee-Yeon Park KR; Pyeong-Hwan Wee KR, Method of locating a mobile phone by measuring the distance between the phone and a base station in a cellular mobile telephone system.
  25. Nasta, Rodolphe, Satellite with omnidirectional coverage.
  26. Gray, Jack; Boardman, Jonathan A., Ship position and velocity using satellite ephemerides and radar range measurement of satellite.
  27. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle.
  28. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle.
  29. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle with compensation for noise or measurement error.
  30. Katsuno, Yasuharu; Honda, Ryoji, System and method for transmitting data between terminals based upon progress vectors.
  31. Fisher-Jeffes, Timothy; Muthukrishnan, Dilip; Keller, Thomas, Time shared rake fingers and path searcher.
  32. Dodds,David E.; Celaya,Bernardo; Monteith,Terence, Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults.

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