IMM based robust target tracking in LOS/NLOS hybrid environments using fused TOA and RSSI measurements
Zhou Ya · Computer Engineering and Applications Journal · 2013
To attack the problem of target tracking in LOS/NLOS hybrid environments,a robust Interactive Multiple mode(lIMM)approach based on fused Time of Arrival(TOA)and Received Signal Strength Indicator(RSSI)measurements is proposed in this paper.Extended Kalman Filter(EKF)and Extended H-infinity Filter(EHF)is respectively used to describe the LOS and NLOS transmission,which is modeled by a Markov process.Monte Carlo simulation results show the practice and effectiveness of the proposed algorithm.It has higher positioning accuracy and better tracking stability with similar computing complex compared with the TOA based approach.