DocumentCode
1151418
Title
Bounds on Time-Delay Estimation for Monochromatic Signals
Author
Weiss, Anthony J.
Author_Institution
Saxpy Computer Corporation
Issue
6
fYear
1987
Firstpage
798
Lastpage
808
Abstract
Time-delay estimation (TDE) of monochromatic signals,observed by spatially separated sensors, is widely used for sourcelocalization in radar/sonar applications. We use lower bounds tostudy the accuracy of TDE as a function of signal to noise ratio(SNR), frequency, and sensor separation. We show that the Cramer-Rao bound, which is frequently used as a standard ofreference, yields optimistic predictions in many cases.
Keywords
Acoustic sensors; Cramer-Rao bounds; Delay; Frequency; Radar applications; Sensor arrays; Signal analysis; Signal to noise ratio; Sonar applications; Underwater acoustics;
fLanguage
English
Journal_Title
Aerospace and Electronic Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9251
Type
jour
DOI
10.1109/TAES.1987.310916
Filename
4104435
Link To Document