Title :
A novel time-difference-of-arrival estimating approach based on FWT
Author :
Ma, Jinming ; He, Zhiqiang ; Wu, Weiling
Author_Institution :
Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
This paper investigates the relationship between fast Walsh transform (FWT) and the autocorrelation of m-sequence. On this basis a novel approach to estimate the time-difference-of-arrival (TDOA) that benefits from binary tree searching is proposed. Computer simulation indicates that this method is much more effective than the conventional ones with enough reliability.
Keywords :
AWGN channels; Walsh functions; correlation methods; delay estimation; m-sequences; mobile radio; tree searching; AWGN; additive white Gaussian noise; binary tree searching; fast Walsh transform; general cross correlation; m-sequence autocorrelation; time-difference-of-arrival estimation; AWGN; Autocorrelation; Binary trees; Computer simulation; Educational institutions; Helium; Phase estimation; Robustness; Time difference of arrival; White noise;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209702
