A Measurement-Based Robust Adaptive Kalman Filtering Algorithm

Abstract:

In the case that the accuracy of standard kalman filter (SKF) declines when the noise statistical characteristics are unknown or changing, a measurement-based adaptive kalman filtering algorithm (MAKF) is presented. Based on the contrastive analysis of measurement characteristics of different measurement systems, MAKF is put forward to estimate adaptively the measurement noise variance R by co-difference measurement sequences. Simulation is performed by applying this algorithm to the GPS/INS integrated navigation system, the results show that MAKF can track the GPS measurement noise in real time on condition that the GPS measurement noise is unknown or changing, and the filtering accuracy and robustness are superior to those of SKF and an improved Sage-Husa adaptive kalman filtering algorithm.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 3773-3779
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.3773
• Online since: January 2012
• Authors: Yan Hong Chang, Hai Zhang, Qi Fan Zhou
• Keywords: Adaptive Kalman Filtering, GPS/INS, Integrated Navigation, MAKF

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