A Modified EKF Algorithm for GPS Point Dynamic Positioning and Velocity Measurement

Provided by: Journal of Theoretical and Applied Information Technology
Topic: Mobility
Format: PDF
Extended Kalman Filter (EKF) algorithm is widely used in GPS positioning and velocity measurement. As for EKF algorithm, the approximate initial position of the receiver is indispensable; otherwise the time consumption of the first positioning is too high because of the filter's low convergence rate. A modified EKF algorithm named Delayed Update EKF (DU-EKF) algorithm for GPS point dynamic positioning and velocity measurement is proposed in this paper, which can speed up the convergence rate of the filter without the receiver's approximate initial position.

Find By Topic