Title :
Joint time delay and frequency estimation of multiple sinusoids
Author :
Liao, G. ; So, H.C. ; Ching, P.C.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
We devise a new subspace method for estimating the differential time delay of a signal received at two separated sensors as well as the frequencies of the source signal, assuming that it consists of multiple sinusoids. The time delay and frequency estimates are related to the eigenvalues and eigenvectors of a matrix obtained from the covariances of the received signals. The effectiveness of the proposed algorithm is demonstrated via computer simulations using sinusoidal signals as well as real speech data
Keywords :
covariance matrices; delay estimation; eigenvalues and eigenfunctions; frequency estimation; speech processing; covariance matrix; differential time delay estimation; eigenvalues; eigenvectors; frequency estimation; multiple sinusoids; separated sensors; source signal; speech data; subspace method; Computer simulation; Covariance matrix; Delay effects; Delay estimation; Eigenvalues and eigenfunctions; Frequency estimation; Frequency shift keying; Matrices; Microphone arrays; Speech;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940319
