TW344801B - Method for doppler-replica harmonic avoidance - Google Patents
Method for doppler-replica harmonic avoidanceInfo
- Publication number
- TW344801B TW344801B TW086110036A TW86110036A TW344801B TW 344801 B TW344801 B TW 344801B TW 086110036 A TW086110036 A TW 086110036A TW 86110036 A TW86110036 A TW 86110036A TW 344801 B TW344801 B TW 344801B
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- digital representation
- frequency
- replica
- intermediate frequency
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
- Radio Relay Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
In a Global Positioning Satellite receiver, the method comprising: receiving an input signal having a signal carrier frequency; generating a local oscillator signal having frequency which is offset from the carrier frequency; mixing the input signal with the local oscillator signal to produce an intermediate frequency signal; converting the intermediate frequency signal to a multiple-sample digital representation; generating a multiple-sample digital representation of a replica signal; and correlating the multiple-sample digital representation of the intermediate frequency signal with the multiple-sample digital representation of the replica signal; in which the local oscillator frequency offset being sufficient such that harmonics of the digital representation of the replica signal fall above the highest intermediate frequency.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2162896P | 1996-07-12 | 1996-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW344801B true TW344801B (en) | 1998-11-11 |
Family
ID=5179702
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086110030A TW358269B (en) | 1996-07-12 | 1997-07-25 | Low powered receiver |
TW086110032A TW351033B (en) | 1996-07-12 | 1997-07-25 | Pre-acquisition frequency offset removal in a GPS receiver |
TW086110036A TW344801B (en) | 1996-07-12 | 1997-07-25 | Method for doppler-replica harmonic avoidance |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086110030A TW358269B (en) | 1996-07-12 | 1997-07-25 | Low powered receiver |
TW086110032A TW351033B (en) | 1996-07-12 | 1997-07-25 | Pre-acquisition frequency offset removal in a GPS receiver |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1319283C (en) |
TW (3) | TW358269B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6697016B1 (en) * | 2002-09-30 | 2004-02-24 | Motorola, Inc. | Self adjustment of a frequency offset in a GPS receiver |
TWI381185B (en) | 2007-06-29 | 2013-01-01 | Mstar Semiconductor Inc | Gps data recording apparatus and related method thereof |
CN115144877B (en) * | 2022-06-23 | 2023-07-04 | 上海德寰通信技术有限公司 | Satellite signal acquisition method and device, ground terminal and medium |
-
1997
- 1997-07-03 CN CNB971963320A patent/CN1319283C/en not_active Expired - Lifetime
- 1997-07-25 TW TW086110030A patent/TW358269B/en not_active IP Right Cessation
- 1997-07-25 TW TW086110032A patent/TW351033B/en not_active IP Right Cessation
- 1997-07-25 TW TW086110036A patent/TW344801B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1319283C (en) | 2007-05-30 |
TW358269B (en) | 1999-05-11 |
TW351033B (en) | 1999-01-21 |
CN1225207A (en) | 1999-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |