TY - GEN
T1 - Unscented Kalman filter with open-loop compensation for high dynamic GNSS carrier tracking
AU - Wang, Wen Jing
AU - Chen, Xi
AU - Han, Shuai
AU - Meng, Wei Xiao
AU - Zhang, Yi
PY - 2010
Y1 - 2010
N2 - Because of the limit of the loop-band, traditional carrier tracking loop of GNSS receiver can't work in high dynamic conditions with large Doppler frequency, for which an open-loop carrier tracking method based on UKF is proposed. Upon this new tracking loop, the four-dimensionality UKF phase estimator and a compensator is designed to modify the estimative values. By simulating the high dynamic trace of the plat of GNSS receiver, this new method is compared to the closed loop mainly in the aspects of tracking errors, compensation effects and unlocking probability. Simulations show that (1) the proposed open-loop compensation method can give attention to the precision and the dynamics better, with high stability, (2) compared with the closed loop, the open-loop carrier tracking method can improve the tracking precision, with 50% decrease of the tracking errors; and (3) the convergence of this new method is much better, leading to lower unlocking probability.
AB - Because of the limit of the loop-band, traditional carrier tracking loop of GNSS receiver can't work in high dynamic conditions with large Doppler frequency, for which an open-loop carrier tracking method based on UKF is proposed. Upon this new tracking loop, the four-dimensionality UKF phase estimator and a compensator is designed to modify the estimative values. By simulating the high dynamic trace of the plat of GNSS receiver, this new method is compared to the closed loop mainly in the aspects of tracking errors, compensation effects and unlocking probability. Simulations show that (1) the proposed open-loop compensation method can give attention to the precision and the dynamics better, with high stability, (2) compared with the closed loop, the open-loop carrier tracking method can improve the tracking precision, with 50% decrease of the tracking errors; and (3) the convergence of this new method is much better, leading to lower unlocking probability.
UR - https://www.scopus.com/pages/publications/77953464454
U2 - 10.1117/12.855176
DO - 10.1117/12.855176
M3 - 会议稿件
AN - SCOPUS:77953464454
SN - 9780819480798
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - International Conference on Space Information Technology 2009
T2 - International Conference on Space Information Technology 2009
Y2 - 26 November 2009 through 27 November 2009
ER -