The Applied Research of Variable Weighting Coefficient's Federated Kalman Filter in GPS/DR Integrated Positioning System
Wei Qu · Science Technology and Engineering · 2010
For the probem of GPS receiver easily a throwing star and the cumulative error of DR,the integrated positioning system of GPS has been assisted by DR,achieved by using the information fusion algorithm of variable weighting coefficients 's federated Kalman filter.The algorithm has been simulated by Matlab.This method not only overcomes the GPS signal masking problem,but also make full use of the DR of the short-term high-precision self-positioning.The simulation results show that the method ensures positioning accuracy of the system under the premise of effectively improve the positioning system fault-tolerance and reliable operation.