TY - GEN
T1 - Modified GML algorithm with simulated annealing for estimation of signal arrival time
AU - Wann, Chin Der
AU - Chang, Lun Kai
PY - 2007
Y1 - 2007
N2 - A modified generalized maximum-likelihood (GML) algorithm with simulated annealing for estimating the signal arrival time is presented. In a multipath environment, the GML algorithm can be used for the time-of-arrival (TOA) estimation; nevertheless, the GML algorithm usually takes up a long period of processing time, and sometimes fails to converge. To mitigate the effects from dense multipath interference and to reduce the computational complexity of the algorithm, methods of threshold settings based on the minimum root mean square error (RMSE) criteria are discussed. Instead of performing a full-scale search of adequate threshold settings, the simulated annealing process is adopted for finding the best pair of thresholds for use in the modified GML algorithm. Simulation results show that in the line-of-sight (LOS) short-range propagation environment, the proposed scheme achieves better performance than other statistical schemes in terms of the root mean square error of signal arrival time.
AB - A modified generalized maximum-likelihood (GML) algorithm with simulated annealing for estimating the signal arrival time is presented. In a multipath environment, the GML algorithm can be used for the time-of-arrival (TOA) estimation; nevertheless, the GML algorithm usually takes up a long period of processing time, and sometimes fails to converge. To mitigate the effects from dense multipath interference and to reduce the computational complexity of the algorithm, methods of threshold settings based on the minimum root mean square error (RMSE) criteria are discussed. Instead of performing a full-scale search of adequate threshold settings, the simulated annealing process is adopted for finding the best pair of thresholds for use in the modified GML algorithm. Simulation results show that in the line-of-sight (LOS) short-range propagation environment, the proposed scheme achieves better performance than other statistical schemes in terms of the root mean square error of signal arrival time.
UR - https://www.scopus.com/pages/publications/48649091095
U2 - 10.1109/TENCON.2007.4429105
DO - 10.1109/TENCON.2007.4429105
M3 - 会议稿件
AN - SCOPUS:48649091095
SN - 1424412722
SN - 9781424412723
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
BT - TENCON 2007 - 2007 IEEE Region 10 Conference
T2 - IEEE Region 10 Conference, TENCON 2007
Y2 - 30 October 2007 through 2 November 2007
ER -