TY - GEN
T1 - GPS/INS integrated navigation algorithm based on the double-difference of time/inter-satellite with carrier phase
AU - Yue, Zhe
AU - Lian, Baowang
AU - Tang, Chengkai
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/29
Y1 - 2017/12/29
N2 - In the integrated navigation system, the carrier phase has higher accuracy than the pseudo-range, but it has the problem of the solution of integer ambiguity. This paper proposes a GPS/INS integrated navigation algorithm based on the double-difference of time/inter-satellite with carrier phase. First, the algorithm is used to eliminate the influence of ambiguity by the simplified time-differenced technique. Then, aiming at the problem that the errors of the time differential carrier phase is accumulating with time, the pseudo-range/pseudo-range rate measurement are introduced to provide absolute positioning information for damping. It uses the intersatellite difference technique to eliminate the clock error and clock error drift of the receiver, and builds a new Kalman model with lower dimension. Through the simulation of the measured GPS data, it is found that the proposed method has higher accuracy than the classical pseudo-range method, and the positioning accuracy of the east, north, high is increased by 60.47%, 65.03%, 53.79%.
AB - In the integrated navigation system, the carrier phase has higher accuracy than the pseudo-range, but it has the problem of the solution of integer ambiguity. This paper proposes a GPS/INS integrated navigation algorithm based on the double-difference of time/inter-satellite with carrier phase. First, the algorithm is used to eliminate the influence of ambiguity by the simplified time-differenced technique. Then, aiming at the problem that the errors of the time differential carrier phase is accumulating with time, the pseudo-range/pseudo-range rate measurement are introduced to provide absolute positioning information for damping. It uses the intersatellite difference technique to eliminate the clock error and clock error drift of the receiver, and builds a new Kalman model with lower dimension. Through the simulation of the measured GPS data, it is found that the proposed method has higher accuracy than the classical pseudo-range method, and the positioning accuracy of the east, north, high is increased by 60.47%, 65.03%, 53.79%.
KW - carrier phase
KW - integrated navigation
KW - intersatellite difference
KW - time difference
UR - https://www.scopus.com/pages/publications/85049182704
U2 - 10.1109/ICSPCC.2017.8242584
DO - 10.1109/ICSPCC.2017.8242584
M3 - 会议稿件
AN - SCOPUS:85049182704
T3 - 2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
SP - 1
EP - 6
BT - 2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
Y2 - 22 October 2017 through 25 October 2017
ER -