TY - GEN
T1 - The analysis of time synchronization errors in INS/GPS tightly integrated navigation
AU - Jingjing, Chen
AU - Lingjuan, Miao
AU - Yanbing, Guo
N1 - Publisher Copyright:
© 2015 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2015/9/11
Y1 - 2015/9/11
N2 - A large number of theoretical research results show that INS/GPS tightly integrated navigation system has high positioning accuracy, but many researches ignore the time synchronization errors between INS and GPS in theory. Thus, the performance of INS/GPS tightly integrated navigation becomes worse. This paper analyzes the influence of time synchronization errors on tightly integrated navigation, studies the case where the time synchronization errors are not included in the integration filter, which leads to an increased error covariance and the inaccuracy of IMU bias estimation, and proposes the countermeasure in which the time synchronization errors are regarded as a part of the estimation problem in the data integration, besides, uses two different measurements in Kalman filter. Finally, through simulation the feasibility of the method is proved.
AB - A large number of theoretical research results show that INS/GPS tightly integrated navigation system has high positioning accuracy, but many researches ignore the time synchronization errors between INS and GPS in theory. Thus, the performance of INS/GPS tightly integrated navigation becomes worse. This paper analyzes the influence of time synchronization errors on tightly integrated navigation, studies the case where the time synchronization errors are not included in the integration filter, which leads to an increased error covariance and the inaccuracy of IMU bias estimation, and proposes the countermeasure in which the time synchronization errors are regarded as a part of the estimation problem in the data integration, besides, uses two different measurements in Kalman filter. Finally, through simulation the feasibility of the method is proved.
KW - INS/GPS
KW - tightly integrated navigation
KW - time synchronization error
UR - https://www.scopus.com/pages/publications/84946556825
U2 - 10.1109/ChiCC.2015.7260436
DO - 10.1109/ChiCC.2015.7260436
M3 - Conference contribution
AN - SCOPUS:84946556825
T3 - Chinese Control Conference, CCC
SP - 5107
EP - 5112
BT - Proceedings of the 34th Chinese Control Conference, CCC 2015
A2 - Zhao, Qianchuan
A2 - Liu, Shirong
PB - IEEE Computer Society
T2 - 34th Chinese Control Conference, CCC 2015
Y2 - 28 July 2015 through 30 July 2015
ER -