WO2004040329A3 - System and method for estimating clock acceleration and location determination - Google Patents
System and method for estimating clock acceleration and location determination Download PDFInfo
- Publication number
- WO2004040329A3 WO2004040329A3 PCT/US2003/034454 US0334454W WO2004040329A3 WO 2004040329 A3 WO2004040329 A3 WO 2004040329A3 US 0334454 W US0334454 W US 0334454W WO 2004040329 A3 WO2004040329 A3 WO 2004040329A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- acceleration
- clock
- positioning
- clock signal
- Prior art date
Links
- 230000001133 acceleration Effects 0.000 title abstract 7
Classifications
-
- 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
- G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
A method and a system for a location determination (a) acquire a first positioning signal; (b) analyze the first positioning signal to provide an estimate of a clock signal acceleration; (c) acquire additional positioning signals based on the estimate of the clock signal acceleration; and (d) perform the location determination using the first positioning signal and the additional positioning signals. The additional positioning signals may be acquired using a stacking technique. The first positioning signal may be acquired based on a signal-to-noise ratio exceeding a predetermined threshold. Clock signal acceleration may be estimated using a constant clock signal acceleration parametric model, which may be parabolic model based on a function that dwpends on the clock signal acceleration, a clock Doppler and an initial phase value. Alternatively, grids of various granularity may be searched clock signal acceleration space and a clock Doppler space in the vicinity of a clock Doppler value measured in the acquisition of the first positioning signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003287268A AU2003287268A1 (en) | 2002-10-29 | 2003-10-29 | System and method for estimating clock acceleration and location determination |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42222102P | 2002-10-29 | 2002-10-29 | |
| US60/422,221 | 2002-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2004040329A2 WO2004040329A2 (en) | 2004-05-13 |
| WO2004040329A3 true WO2004040329A3 (en) | 2004-07-08 |
Family
ID=32230333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2003/034454 WO2004040329A2 (en) | 2002-10-29 | 2003-10-29 | System and method for estimating clock acceleration and location determination |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2003287268A1 (en) |
| WO (1) | WO2004040329A2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5809064A (en) * | 1990-11-28 | 1998-09-15 | Novatel, Inc. | Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators |
| US5969672A (en) * | 1998-07-17 | 1999-10-19 | Honeywell Inc. | GPS signal fault isolation monitor |
| US6397146B1 (en) * | 1999-11-29 | 2002-05-28 | Litton Systems, Inc. | Acceleration compensation in a GPS-inertial navigation system |
| US20020105458A1 (en) * | 2001-02-06 | 2002-08-08 | Koninklijke Philips Electronics N. V. | Method of despreading GPS signals |
-
2003
- 2003-10-29 WO PCT/US2003/034454 patent/WO2004040329A2/en not_active Application Discontinuation
- 2003-10-29 AU AU2003287268A patent/AU2003287268A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5809064A (en) * | 1990-11-28 | 1998-09-15 | Novatel, Inc. | Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators |
| US5969672A (en) * | 1998-07-17 | 1999-10-19 | Honeywell Inc. | GPS signal fault isolation monitor |
| US6397146B1 (en) * | 1999-11-29 | 2002-05-28 | Litton Systems, Inc. | Acceleration compensation in a GPS-inertial navigation system |
| US20020105458A1 (en) * | 2001-02-06 | 2002-08-08 | Koninklijke Philips Electronics N. V. | Method of despreading GPS signals |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003287268A1 (en) | 2004-05-25 |
| WO2004040329A2 (en) | 2004-05-13 |
| AU2003287268A8 (en) | 2004-05-25 |
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