TY - GEN
T1 - Combined terrain aided navigation based on correlation method and parallel kalman filters
AU - Xie, Jianchun
AU - Zhao, Rongchun
AU - Xia, Yong
PY - 2007
Y1 - 2007
N2 - As an important part of modern integrated navigation system, Terrain Aided Navigation (TAN) compares measured terrain height with the onboard Digital Elevation Map (DEM) to locate a vehicle's position. However, traditional TAN methods cannot work robustly when flying over flat terrain. This paper proposes a Combined Terrain Aided Navigation (CTAN) system, which incorporates the correlation method with the parallel Kalman filters. In this system, both the correlation method and the Parallel Kalman filters are utilized to calculate the position by analyzing the difference between the DEM data and the set of height measurements, which is collected in real time. Two obtained position are used to correct the possible estimation error, caused by the repetitive characteristic of terrain or the noise of measurements. Compared with the TAN system uses only the correlation method, simulation results approve the proposed system can significantly improve the navigation performance.
AB - As an important part of modern integrated navigation system, Terrain Aided Navigation (TAN) compares measured terrain height with the onboard Digital Elevation Map (DEM) to locate a vehicle's position. However, traditional TAN methods cannot work robustly when flying over flat terrain. This paper proposes a Combined Terrain Aided Navigation (CTAN) system, which incorporates the correlation method with the parallel Kalman filters. In this system, both the correlation method and the Parallel Kalman filters are utilized to calculate the position by analyzing the difference between the DEM data and the set of height measurements, which is collected in real time. Two obtained position are used to correct the possible estimation error, caused by the repetitive characteristic of terrain or the noise of measurements. Compared with the TAN system uses only the correlation method, simulation results approve the proposed system can significantly improve the navigation performance.
KW - Correlation method
KW - Parallel kalman filters
KW - Terrain aided navigation
UR - http://www.scopus.com/inward/record.url?scp=51349108341&partnerID=8YFLogxK
U2 - 10.1109/ICEMI.2007.4350410
DO - 10.1109/ICEMI.2007.4350410
M3 - 会议稿件
AN - SCOPUS:51349108341
SN - 1424411351
SN - 9781424411351
T3 - 2007 8th International Conference on Electronic Measurement and Instruments, ICEMI
SP - 1145
EP - 1150
BT - 2007 8th International Conference on Electronic Measurement and Instruments, ICEMI
T2 - 2007 8th International Conference on Electronic Measurement and Instruments, ICEMI
Y2 - 16 August 2007 through 18 August 2007
ER -