Title :
TOA estimation method using fourth order cumulants
Author :
Ying, Liu ; Wang, Shuxun
Author_Institution :
Dept. of Commun. Eng., ChangChun Posts & Telecommun. Inst., ChangChun, China
Abstract :
This paper is concerned with the active identification of a multipath propagation channel. The correlation method and a frequency domain deconvolution are used to convert the TOA (time of arrival) estimation problem to an estimation of frequency. In the case of stationary Gaussian noise (after the deconvolution), a new approach was proposed by the use of the higher order cumulants of the measurements data. The noise was suppressed and the TOA estimation can be obtained correctly. Finally simulation examples are presented to illustrate the effectiveness of this approach
Keywords :
Gaussian noise; correlation methods; delay estimation; direction-of-arrival estimation; frequency estimation; higher order statistics; land mobile radio; multipath channels; parameter estimation; radio direction-finding; TOA estimation method; active identification; correlation method; deconvolution; fourth order cumulants; frequency domain deconvolution; frequency estimation; mobile positioning; multipath propagation channel; noise suppression; radiolocation; stationary Gaussian noise; time of arrival estimation; Additive noise; Delay effects; Delay estimation; Frequency estimation; Gaussian noise; Least squares approximation; Matched filters; Signal processing; Signal resolution; Time of arrival estimation;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.894477
