Effect of Correlation on Signal Detection in Arctic Under-Ice Noise
Signal detection in a large segment of non-Gaussian and non-stationary Arctic under-ice noise, which contains both high power narrow-band and impulsive components, is examined. It is shown that the correlation functions of sub-segments of data change significantly, and if ignored, can degrade the pe...
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ftdtic:ADA230143 2023-05-15T14:50:52+02:00 Effect of Correlation on Signal Detection in Arctic Under-Ice Noise Nielsen, P. A. Thomas, J. B. PRINCETON UNIV NJ DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE 1988-11-02 text/html http://www.dtic.mil/docs/citations/ADA230143 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230143 en eng http://www.dtic.mil/docs/citations/ADA230143 Approved for public release; distribution is unlimited. DTIC AND NTIS Electrical and Electronic Equipment Acoustic Detection and Detectors Acoustics *HIGH POWER DETECTORS PROBABILITY SHAPE FALSE ALARMS CORRELATION PULSES SIGNALS SAMPLING ADAPTIVE FILTERS NOISE HYDROPHONES MATCHED FILTERS FUNCTIONS(MATHEMATICS) NARROWBAND ARCTIC REGIONS NOISE(SOUND) OMNIDIRECTIONAL BANDSTOP FILTERS UNDERICE DETECTION Text 1988 ftdtic 2016-02-22T23:28:36Z Signal detection in a large segment of non-Gaussian and non-stationary Arctic under-ice noise, which contains both high power narrow-band and impulsive components, is examined. It is shown that the correlation functions of sub-segments of data change significantly, and if ignored, can degrade the performance of the detector. For a false alarm probability of 0.05 and a known constant signal, the matched filter was on average 17.6% better than a detector designed assuming independent noise samples. It is also shown that pre-processing the data with an adaptive notch filter, then using the matched filter will result in a further improvement of about 6%. Additionally, the effect two different signal shapes have on the performance of the matched filter is examined. Keywords: Underwater sound d signals; Underice noise sound; Omnidirectional hydrophones. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Electrical and Electronic Equipment Acoustic Detection and Detectors Acoustics *HIGH POWER DETECTORS PROBABILITY SHAPE FALSE ALARMS CORRELATION PULSES SIGNALS SAMPLING ADAPTIVE FILTERS NOISE HYDROPHONES MATCHED FILTERS FUNCTIONS(MATHEMATICS) NARROWBAND ARCTIC REGIONS NOISE(SOUND) OMNIDIRECTIONAL BANDSTOP FILTERS UNDERICE DETECTION |
spellingShingle |
Electrical and Electronic Equipment Acoustic Detection and Detectors Acoustics *HIGH POWER DETECTORS PROBABILITY SHAPE FALSE ALARMS CORRELATION PULSES SIGNALS SAMPLING ADAPTIVE FILTERS NOISE HYDROPHONES MATCHED FILTERS FUNCTIONS(MATHEMATICS) NARROWBAND ARCTIC REGIONS NOISE(SOUND) OMNIDIRECTIONAL BANDSTOP FILTERS UNDERICE DETECTION Nielsen, P. A. Thomas, J. B. Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
topic_facet |
Electrical and Electronic Equipment Acoustic Detection and Detectors Acoustics *HIGH POWER DETECTORS PROBABILITY SHAPE FALSE ALARMS CORRELATION PULSES SIGNALS SAMPLING ADAPTIVE FILTERS NOISE HYDROPHONES MATCHED FILTERS FUNCTIONS(MATHEMATICS) NARROWBAND ARCTIC REGIONS NOISE(SOUND) OMNIDIRECTIONAL BANDSTOP FILTERS UNDERICE DETECTION |
description |
Signal detection in a large segment of non-Gaussian and non-stationary Arctic under-ice noise, which contains both high power narrow-band and impulsive components, is examined. It is shown that the correlation functions of sub-segments of data change significantly, and if ignored, can degrade the performance of the detector. For a false alarm probability of 0.05 and a known constant signal, the matched filter was on average 17.6% better than a detector designed assuming independent noise samples. It is also shown that pre-processing the data with an adaptive notch filter, then using the matched filter will result in a further improvement of about 6%. Additionally, the effect two different signal shapes have on the performance of the matched filter is examined. Keywords: Underwater sound d signals; Underice noise sound; Omnidirectional hydrophones. |
author2 |
PRINCETON UNIV NJ DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE |
format |
Text |
author |
Nielsen, P. A. Thomas, J. B. |
author_facet |
Nielsen, P. A. Thomas, J. B. |
author_sort |
Nielsen, P. A. |
title |
Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
title_short |
Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
title_full |
Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
title_fullStr |
Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
title_full_unstemmed |
Effect of Correlation on Signal Detection in Arctic Under-Ice Noise |
title_sort |
effect of correlation on signal detection in arctic under-ice noise |
publishDate |
1988 |
url |
http://www.dtic.mil/docs/citations/ADA230143 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230143 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA230143 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766321935362293760 |