Accession Number:

ADA230009

Title:

Detection and Time-Delay Estimation for Band-Limited Transients Using Higher-Order Correlations

Descriptive Note:

Abstract

Corporate Author:

NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s):

• Pflug, Lisa A.
• Ioup, George E.
• Ioup, Juilette W.
• Barnes, Kenneth H.
• Field, Robert L.

Report Date:

1990-01-01

Pagination or Media Count:

1.0

Abstract:

Previously reported research examining the performance of higher-order correlation detectors for band Limited transient signals using hypothesis testing has been extended to include alternate detection methods, detector performance as a function of signal-to-noise ratios SNRs, and time-delay estimation. In particular, frequency-domain detection has been compared to detection in the time domain. Probability of detection is determined for example transients at a fixed false alarm rate over a domain of SNRs. The accuracy of time-delay estimation is investigated for these signals using high-order correlation estimators for the same noisy transients. Signals affected by the environment are also included in the analyses.

Descriptors:

• *TEST AND EVALUATION
• TRANSIENTS
• METHODOLOGY
• DETECTION
• DETECTORS
• PROBABILITY
• SIGNAL TO NOISE RATIO
• RATES
• ACCURACY
• FALSE ALARMS
• ESTIMATES
• TIME
• FREQUENCY BANDS
• CORRELATION
• LIMITATIONS
• DELAY
• HYPOTHESES
• TIME DOMAIN
• FREQUENCY

Subject Categories:

• Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE