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Removal of signal errors for differential satellite positioning systems

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03D-001/04
  • H03D-001/06
출원번호 US-0055535 (1993-04-30)
발명자 / 주소
  • Sheynblat Len (Belmont CA)
출원인 / 주소
  • Trimble Navigation Limited (Sunnyvale CA 02)
인용정보 피인용 횟수 : 46  인용 특허 : 0

초록

Method and apparatus for reducing the contributions of receiver noise signal error and multipath signal error from signals received in a Satellite Positioning System (SATPS) from one or more SATPS satellites by formation and appropriate filtering of differences of signals DD that are differences of

대표청구항

A method for reducing the contributions of receiver noise signal error and multipath signal error from signals received in a Satellite Positioning System (SATPS) from one or more SATPS satellites, the method comprising the steps of: providing one or more SATPS satellites, numbered j=1, 2, . . . , ea

이 특허를 인용한 특허 (46)

  1. Schipper, Brian W.; Jeerage, Mahesh K., Code minus carrier multipath observation for satellite exclusion.
  2. Sheynblat Len (Belmont CA), Compensation for multipath errors and ionospheric delays in differential satellite positioning systems.
  3. Robbins, James E., Differential GPS corrections using virtual stations.
  4. Campanella, S. Joseph, Digital broadcast system using satellite direct broadcast and terrestrial repeater.
  5. Hwang Patrick A. ; McGraw Gary A. ; Bader John R., Enhanced differential GNSS carrier-smoothed code processing using dual frequency measurements.
  6. Pon Rayman, Enhanced suppression of multipath interference.
  7. Kohli Sanjai ; Chen Steven, GPS car navigation system.
  8. Schipper Brian W. ; Sheikh Suneel I. ; Vallot Lawrence C., GPS multipath detection method and system.
  9. Kohli Sanjai ; Turetzky Greg, GPS receiver.
  10. Kohli Sanjai, GPS receiver with cross-track hold.
  11. Kohli Sanjai, GPS receiver with cross-track hold.
  12. Kohli Sanjai, GPS receiver with cross-track hold.
  13. Kohli, Sanjai, GPS receiver with cross-track hold.
  14. Sanjai Kohli, GPS receiver with cross-track hold.
  15. Kohli, Sanjai; Chen, Steven; Cahn, Charles R.; Chansarkar, Mangesh; Turetsky, Greg, GPS system for navigating a vehicle.
  16. Sheynblat Leonid, High level testing to test and recover the damaged differential corrections.
  17. Christian Rocken ; Randolph H. Ware ; James M. Johnson ; John J. Braun ; Christopher Alber ; Teresa M. Van Hove, High resolution ionospheric technique for regional area high-accuracy global positioning system applications.
  18. Birchler Mark A. ; Jones Debra A. ; Oros Nicholas C., Method and apparatus for covariance matrix estimation in a weighted least-squares location solution.
  19. Campanella, S. Joseph, Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system.
  20. Mark Isaakovich Zhodzishsky RU; Victor Abramovich Veitsel RU; Javad Ashjaee, Methods and apparatuses for reducing multipath errors in the demodulation of pseudo-random coded signals.
  21. Stansell ; Jr. Thomas A., Mitigation of multipath effects in global positioning system receivers.
  22. Loomis, Peter Van Wyck; Wallace, Gregory Craig; Weisenburger, Shawn D.; Janky, James M., Mobile ionospheric data capture system.
  23. Kee Changdon ; Parkinson Bradford W., Multipath calibration in GPS pseudorange measurements.
  24. Enge, Per K.; Ferrell, Bart; Gutt, Gregory M.; Lassa, James C.; Rizzo, Michael A.; Whelan, David A., Multipath isolation through the combined use of antenna diversity and frequency diversity.
  25. Kohli Sanjai ; Cahn Charles R., Multipath processing for GPS receivers.
  26. Kohli, Sanjai; Cahn, Charles R., Multipath processing for GPS receivers.
  27. Kohli,Sanjai; Cahn,Charles R., Multipath processing for GPS receivers.
  28. Sanjai Kohli ; Charles R. Cahn, Multipath processing for GPS receivers.
  29. Loomis Peter V. W., Post-processing of inverse DGPS corrections.
  30. Mayersak Joseph R., Precision guidance system for aircraft launched bombs.
  31. Sanjai Kohli ; Steven Chen ; Charles R. Cahn ; Mangesh Chansarkar ; Greg Turetsky, Pseudo-noise correlator for a GPS spread spectrum receiver.
  32. Conroy, Cormac S.; Sheynblat, Leonid, Reconfigurable satellite positioning system receivers.
  33. Kohli Sanjai ; Chen Steven, Spread spectrum receiver with fast signal reacquisition.
  34. Sanjai Kohli ; Steven Chen ; Charles R. Cahn ; Mangesh Chansarkar ; Greg Turetsky, Spread spectrum receiver with multi-bit correlator.
  35. Cahn Charles R. ; Kohli Sanjai, Spread spectrum receiver with multi-path cancellation.
  36. Cahn Charles R. ; Chansarkar Mangesh ; Kohli Sanjai, Spread spectrum receiver with multi-path correction.
  37. Cahn, Charles R.; Chansarkar, Mangesh; Kohli, Sanjai, Spread spectrum receiver with multi-path correction.
  38. Norman Charles P. ; Cahn Charles R., Strong signal cancellation to enhance processing of weak spread spectrum signal.
  39. Norman,Charles P.; Cahn,Charles R., Strong signal cancellation to enhance processing of weak spread spectrum signal.
  40. Haugse Eric David ; Ridgway Robert Irving ; Hightower Charles Howard ; Warren Ryon Christopher, Structural deformation compensation system for large phased-array antennas.
  41. Johnson Gregory Bengt, System and method for determining high accuracy relative position solutions between two moving platforms.
  42. May, Reed R.; Morgan, Kenneth S., System and method for dynamically estimating output variances for carrier-smoothing filters.
  43. Kohli Sanjai ; Chen Steven, Triple multiplexing spread spectrum receiver.
  44. Kohli, Sanjai; Chen, Steven, Triple multiplexing spread spectrum receiver.
  45. Kohli, Sanjai; Chen, Steven, Triple multiplexing spread spectrum receiver.
  46. Kohli,Sanjai; Chen,Steven, Triple multiplexing spread spectrum receiver.
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