Paper Info
Title
Analysis of wide-band cross-correlation for target detection and time delay estimation
Abstract
The problem of target track detection and time delay estimation using cross-correlation of wideband signals has been analyzed. The concepts of target detection and (accurate) localization (TD&L), target detection (TD, with a possibly smeared measurement), and false detection (FD), have been defined in terms of resolution cell exceedances. Receiver operating curves relating to P/sub TD&L/ to P/sub FD/ and P/sub TD/ to P/sub FD/ have been presented. A generalized maximum likelihood estimate of the time delay based on the main peak and spillover cells of the cross-correlation has been presented. The accuracy of this estimate has been derived using the Cramer-Rao lower bound in terms of the resolution cell, signal-to-noise ratio (SNR), and the number of samples per observation interval. This accuracy has been verified via simulations for SNR as low as -6 dB for a 128-sample window.
Year
DOI
Venue
1991
10.1109/ICASSP.1991.150637
ICASSP '91 Proceedings of the Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference
Keywords
DocType
ISSN
sub td,generalized maximum likelihood estimate,false detection,resolution cell exceedances,resolution cell,wide-band cross-correlation,spillover cell,time delay estimation,time delay,target track detection,target detection,sub fd,maximum likelihood estimation,signal to noise ratio,cross correlation,cell signaling,signal processing,receiver operator curve,cramer rao lower bound,statistical analysis,maximum likelihood estimate,signal analysis
Conference
1520-6149
ISBN
Citations 
PageRank 
0-7803-0003-3
1
0.42
References 
Authors
4
4
Name
Order
Citations
PageRank
Y. Bar-Shalom135780.17
Palmieri, F.210.42
Kumar, A.310.42
H. M. Shertukde441.06