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Journal Article
GPS L5 Acquisition Schemes for Fast Code Detection and Improved Doppler Accuracy
- Authors
- Inone Joo, Cheonsig Sin, Sanguk Lee, Jaehoon Kim
- Issue Date
- 2010-02
- Citation
- ETRI Journal, v.32, no.1, pp.142-144
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- In this letter, we propose GPS L5 acquisition schemes to detect a fast code phase and improve the accuracy of the Doppler frequency. The proposed approach is based on the code-phase changes which occur during the acquisition processing time originating in the Doppler frequency. The proposed schemes detect a fast code phase within about 1 chip near the estimated code phase and improve the accuracy of the Doppler frequency by up to about 4 times in comparison with the popular Septentrio receiver. The feasibility of the proposed schemes is demonstrated through simulation. © 2010 ETRI.
- KSP Keywords
- Doppler Frequency, FAST code, Phase change, code phase, processing time