TY - GEN
T1 - An INS-Aided GPS fast acquisition algorithm for high dynamic applications
AU - Wu, Falin
AU - Xu, Shan
AU - Wu, Zhendian
AU - Chen, Jiemin
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - GPS signal acquisition is the prerequisite for signal tracking and navigation message demodulation. In a high dynamic environment, the high-speed movement between GPS satellite and receiver will generate a large Doppler frequency shift, which makes it difficult to acquire GPS signal. This paper proposed a new INS-Aided parallel code phase acquisition algorithm for high dynamic applications. For frequency search, the algorithm utilizes INS auxiliary information and GPS almanac data to estimate Doppler frequency shift and narrow down the search range of frequency. For code phase search, the algorithm adopts the parallel code phase searching method to reduce the time of code phase search and improve the overall acquisition speed. The proposed algorithm was validated by a semi-physical simulation experiment and the result shown that the proposed algorithm could improve the acquisition speed and the performance of GPS receiver under high dynamic environment remarkably.
AB - GPS signal acquisition is the prerequisite for signal tracking and navigation message demodulation. In a high dynamic environment, the high-speed movement between GPS satellite and receiver will generate a large Doppler frequency shift, which makes it difficult to acquire GPS signal. This paper proposed a new INS-Aided parallel code phase acquisition algorithm for high dynamic applications. For frequency search, the algorithm utilizes INS auxiliary information and GPS almanac data to estimate Doppler frequency shift and narrow down the search range of frequency. For code phase search, the algorithm adopts the parallel code phase searching method to reduce the time of code phase search and improve the overall acquisition speed. The proposed algorithm was validated by a semi-physical simulation experiment and the result shown that the proposed algorithm could improve the acquisition speed and the performance of GPS receiver under high dynamic environment remarkably.
UR - https://www.scopus.com/pages/publications/85049406505
U2 - 10.1109/IST.2017.8261487
DO - 10.1109/IST.2017.8261487
M3 - 会议稿件
AN - SCOPUS:85049406505
T3 - IST 2017 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
SP - 1
EP - 6
BT - IST 2017 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Conference on Imaging Systems and Techniques, IST 2017
Y2 - 18 October 2017 through 20 October 2017
ER -