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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lingjuan Wu Weijun Lu Dunshan Yu |
| Copyright Year | 2009 |
| Description | Author affiliation: Institute of Microelectronics, Peking University, Beijing, China, 100871 (Lingjuan Wu; Weijun Lu; Dunshan Yu) |
| Abstract | Weak signal acquisition has been a limiting factor for high sensitivity GPS receiver. This paper presents GPS signal acquisition algorithms: coherent integration (COH), noncoherent integration (NCOH), and differential coherent integration (DFC) with detailed analysis. Numerical simulations demonstrate that DFC is a superior approach than NCOH in weak GPS signal detection. DFC improves acquisition sensitivity by approximate 1.9dB, 0.8dB than its counterpart NCOH without and with 100Hz carrier Doppler shift as the probability of false alarm is fixed to 0.1% and the probability of detection setting to 90%. In addition, DFC decreases mean acquisition time by about three times than NCOH under the same simulation conditions. |
| Starting Page | 173 |
| Ending Page | 176 |
| File Size | 1196182 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424446681 |
| DOI | 10.1109/PRIMEASIA.2009.5397420 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-01-19 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Algorithm design and analysis Navigation Signal processing algorithms Signal processing Frequency Numerical simulation Signal analysis Digital-to-frequency converters Delay Global Positioning System |
| Content Type | Text |
| Resource Type | Article |
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