Study on Tracing Algorithm of TDOA-based AIEKF

This paper studies the TDOA location tracing algorithm based on extended Kalman filter in UWB. A kind of Adaptive Iteration Extended Kalman Filter (AIEKF) is proposed based on the disadvantage that the EKF algorithm's positioning accuracy reduces with the increase of measurement error and the simulation results show that this algorithm can maintain good positioning accuracy and convergence speed during the increase of the distance-measuring error.