Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Y. Doisy"'
Publikováno v:
IEEE Transactions on Signal Processing. 58:4195-4212
The capability to reject strong and spatially spread interferences by means of subarray adaptive beamforming in presence of sensor dispersions is analyzed. Subarray adaptive beamforming is a beamspace adaptive beamforming well suited for rapid conver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2df4651d7e5814ce8b143532886050b2
https://doi.org/10.1109/tsp.2010.2048106
https://doi.org/10.1109/tsp.2010.2048106
Publikováno v:
IEEE Journal of Oceanic Engineering, October, 4, 33, 419-433
—The influence of transmitted waveforms on the signal-to-reverberation ratio (SRR) of a low-frequency active sonar is analyzed both theoretically and experimentally. Reverberation experiments have been conducted during a sea trial in a littoral wat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90df83c78938bd7f3ea8c9391d0c7c31
https://doi.org/10.1109/joe.2008.2002582
https://doi.org/10.1109/joe.2008.2002582
Publikováno v:
IEEE Journal of Oceanic Engineering. 30:348-359
For a low-frequency active sonar (LFAS) with a triplet receiver array, it is not clear in advance which signal processing techniques optimize its performance. Here, several advanced beamformers are analyzed theoretically, and the results are compared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15754fe59baa6004deaf1af6ca6635fd
https://doi.org/10.1109/joe.2005.850880
https://doi.org/10.1109/joe.2005.850880
Autor:
Y. Doisy
Publikováno v:
IEEE Journal of Oceanic Engineering. 29:430-441
This paper addresses the problem of Doppler shift estimation in Doppler sonar systems. The analysis focuses on the single-beam geometry formed by a circular planar array and considers both narrow-band (or so-called incoherent) and wide-band (or coher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f223f22b9362862ce7b5db1969ac6045
https://doi.org/10.1109/joe.2004.828201
https://doi.org/10.1109/joe.2004.828201
Publikováno v:
IEEE Transactions on Signal Processing, 5, 48, 1213-1224
The topic of this paper is the design and performance analysis of wideband sonar waveforms capable of estimating both target range and Döppler using as few replicas in the processing as possible. First, it is shown that for conventional Döppler sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65788d0a83523cab0a69adf79f9d92a5
https://doi.org/10.1109/78.839970
https://doi.org/10.1109/78.839970
Publikováno v:
Conference Proceedings Ocean '04-MTS/IEEE Techno-Ocean '04: Bridges across the Oceans, 9-12 November 2004, Kobe, Japan, 2, 613-619
Anti Submarine Warfare (ASW) is more and more focused toward shallow water environments. Many complications have come up for ASW sonar performance as a result of this. The problem that is tackled in this article is the performance loss due to the sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13ac2378f8a453dcb76fc45e77f4f6b7
http://resolver.tudelft.nl/uuid:4426dc91-bbf8-43c0-b973-4bd1fdf3f51f
http://resolver.tudelft.nl/uuid:4426dc91-bbf8-43c0-b973-4bd1fdf3f51f
Publikováno v:
1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium.
1.5D transducer arrays represent a promising improvement in ultrasonic B-mode imaging. The reduction of the slice thickness and the correction of phase aberration are potential applications of 1.5D arrays, while keeping the number of electronic chann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c4a46a9bf11f83bb7ea782d78f31a45
https://doi.org/10.1109/ultsym.1995.495802
https://doi.org/10.1109/ultsym.1995.495802
Publikováno v:
OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158).
The objective of this work is to enhance performances of active sonar in reverberation limited conditions by means of specific waveforms and space time processing techniques. We focus on the performances of comb spectrum waveforms, merging the advant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a67eb99117dc3e55122161ac6083a524
https://doi.org/10.1109/oceans.2000.881786
https://doi.org/10.1109/oceans.2000.881786
Publikováno v:
Acoustical Imaging ISBN: 9781461346876
Imaging capability of an active acoustic imaging system in an incoherent homogeneous medium is characterized by a Contrast Figure of Merit (CFM) defined as the incoherent energy entering the mainlobe of the beampattern over the incoherent energy ente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5c9d3aec08fb98bb548091454666ae8
https://doi.org/10.1007/978-1-4419-8772-3_76
https://doi.org/10.1007/978-1-4419-8772-3_76
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