Author(s): HU Sheng-bo, XU Yun-zhou, MAO Tai-ping, HUANG Xi-yue College of Automation, Chongqing University, Chongqing 400045, China, Gutyang Measurement Station, Xichang Satellite Launch Center, Guiyang 550025, China, Guizhou Computer Center, Guiyang 550002, China
Pages: 220-222
Year: 2005 Issue:  S2
Journal: Control Engineering of China
Keyword:  trajectories; multi-resoludon; wavelet transform; data fusion; Bar-Shalom formula;
Abstract: To improve the accuracy of range measurement data from vehicles, a 4th order difference dynamic model based on range measurement data for missile trajectories measurement is proposed. A multiresolutional dynamic model is established for analyzing range measurement data from trajectories of the vehicle. Wavelet transforms are utilized as the bridge linking signals at different resolution. A multi-sensor multiresolutional data fusion algorithm based on Bar-Shalom formula is presented and simulation results are presented. With this algorithm based on data fusion, the measurement data accuracy from vehicle is very good, and the error variance is lowered about 16 % as compared with the standard Kalman Filtering.