DocumentCode
3070730
Title
Time delay estimation with low signal to noise ratios
Author
Chan, Y.T. ; Yansouni, P. ; Crozier, S.
Author_Institution
Royal Military College of Canada, Kingston, Ontario, Canada
Volume
9
fYear
1984
fDate
30742
Firstpage
616
Lastpage
619
Abstract
Time delay estimation via cross-correlation exhibits a nonlinear phenomenon in which estimator performance deteriorates rapidly below a certain signal to noise ratio (SNR). This is a consequence of the large variances associated with estimating cross-correlation functions at low SNRs. A method for predicting the estimator behaviour at low SNR´s, together with experimental results to confirm its validity, are given.
Keywords
Analysis of variance; Analytical models; Delay effects; Delay estimation; Educational institutions; Predictive models; Random processes; Signal processing; Signal to noise ratio; Sonar applications;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '84.
Type
conf
DOI
10.1109/ICASSP.1984.1172387
Filename
1172387
Link To Document