Title :
Time difference of arrival estimation of unequal SNR denoised communication signals
Author :
Mantis, Spiros ; Hippenstiel, Ralph
Author_Institution :
Dept. of Electr. & Comput. Eng., Naval Postgraduate Sch., Monterey, CA, USA
fDate :
Oct. 29 2000-Nov. 1 2000
Abstract :
Improvements in denoising, in conjunction with wavelet processing, are proposed for estimating the time difference of arrival (TDOA) of signals received at two spatially separated sensors. Wavelet denoising, based on the modified maximum likelihood method and higher order moments, are proposed to improve the performance. A numerical evaluation of the methods, when unequal SNR conditions prevail is presented.
Keywords :
antenna arrays; array signal processing; cellular radio; delay estimation; interference suppression; maximum likelihood estimation; method of moments; noise; wavelet transforms; GSM signals; TDOA; higher order moments; modified maximum likelihood method; performance; spatially separated sensors; time difference of arrival estimation; unequal SNR denoised communication signals; wavelet denoising; wavelet processing; Delay effects; Delay estimation; Electromagnetic interference; Gaussian noise; Maximum likelihood estimation; Noise reduction; Signal processing; Signal to noise ratio; Time difference of arrival; Wavelet transforms;
Conference_Titel :
Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-6514-3
DOI :
10.1109/ACSSC.2000.911031
