DocumentCode
894564
Title
Time-domain analysis of cross correlation for time delay estimation with an autocorrelated signal
Author
Kumar, Anil ; Bar-Shalom, Yaakov
Author_Institution
Connecticut Univ., Storrs, CT, USA
Volume
41
Issue
4
fYear
1993
fDate
4/1/1993 12:00:00 AM
Firstpage
1664
Lastpage
1668
Abstract
The estimation accuracy of the time difference of arrival (TDOA) of an exponentially autocorrelated signal at two sensors in white noise is analyzed. The estimate is obtained by cross correlating samples taken as short-term integrals of the noisy signals from the two sensors. This technique avoids ambiguities in the cross correlation, and it is shown that the best sampling rate is double the Nyquist rate, for which the Cramer-Rao lower bound (CRLB) is met in practice
Keywords
array signal processing; correlation theory; delays; time-domain analysis; white noise; autocorrelated signal; best sampling rate; cross correlation; estimation accuracy; sensors; time delay estimation; time difference of arrival; time-domain analysis; white noise; Autocorrelation; Delay effects; Delay estimation; Sampling methods; Signal analysis; Signal processing; Signal to noise ratio; Time difference of arrival; Time domain analysis; White noise;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.212738
Filename
212738
Link To Document