TY - JOUR
T1 - Bounds on Time-Delay Estimation for Monochromatic Signals
AU - Weiss, Anthony J.
N1 - Funding Information:
This work was supported by the Army Research Office under Contract DAAL03-86-C-0018.
PY - 1987/11
Y1 - 1987/11
N2 - Time-delay estimation (TDE) of monochromatic signals, observed by spatially separated sensors, is widely used for source localization in radar/sonar applications. We use lower bounds to study 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 of reference, yields optimistic predictions in many cases.
AB - Time-delay estimation (TDE) of monochromatic signals, observed by spatially separated sensors, is widely used for source localization in radar/sonar applications. We use lower bounds to study 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 of reference, yields optimistic predictions in many cases.
UR - http://www.scopus.com/inward/record.url?scp=0023456362&partnerID=8YFLogxK
U2 - 10.1109/TAES.1987.310916
DO - 10.1109/TAES.1987.310916
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0023456362
SN - 0018-9251
VL - AES-23
SP - 798
EP - 808
JO - IEEE Transactions on Aerospace and Electronic Systems
JF - IEEE Transactions on Aerospace and Electronic Systems
IS - 6
ER -