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학술지 GPS L5 Acquisition Schemes for Fast Code Detection and Improved Doppler Accuracy
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저자
주인원, 신천식, 이상욱, 김재훈
발행일
201002
출처
ETRI Journal, v.32 no.1, pp.142-144
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.10.0209.0414
협약과제
09MR1500, 위성항법지상국시스템 및 탐색구조단말기 기술개발, 이상욱
초록
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.
키워드
Acquisition, Code phase, Doppler, GPS L5
KSP 제안 키워드
Doppler Frequency, FAST code, Phase change, code phase, processing time