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Stand-alone GPS basted position estimation problem using GPS raw data, pseudo-range and Doppler shifts measurements are the concept of fusing noisy observations. A family of improved derivative nonlinear Kalman filters called Sigma Point Kalman filter (SPKF) are applied to a nonlinear model of GPS based position estimation in this paper. Simulations are made to compare the filter with the traditional Iterative Least Square (ILS) method and extended Kalman filter (EKF) method, results indicate that under same conditions, SPKF has higher filtering accuracy and more stable estimation performance. © 2005 IEEE.
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年份: 2005
卷: 2005
页码: 213-217
语种: 英文