Time-Reversal MUSIC Imaging with Time-Domain Gating Technique

Heedong CHOI; Yasutaka OGAWA; Toshihiko NISHIMURA; Takeo OHGANE

doi:10.1587/transcom.E95.B.2377

Time-Reversal MUSIC Imaging with Time-Domain Gating Technique

Heedong CHOI, Yasutaka OGAWA, Toshihiko NISHIMURA, Takeo OHGANE

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A time-reversal (TR) approach with multiple signal classification (MUSIC) provides super-resolution for detection and localization using multistatic data collected from an array antenna system. The theory of TR-MUSIC assumes that the number of antenna elements is greater than that of scatterers (targets). Furthermore, it requires many sets of frequency-domain data (snapshots) in seriously noisy environments. Unfortunately, these conditions are not practical for real environments due to the restriction of a reasonable antenna structure as well as limited measurement time. We propose an approach that treats both noise reduction and relaxation of the transceiver restriction by using a time-domain gating technique accompanied with the Fourier transform before applying the TR-MUSIC imaging algorithm. Instead of utilizing the conventional multistatic data matrix (MDM), we employ a modified MDM obtained from the gating technique. The resulting imaging functions yield more reliable images with only a few snapshots regardless of the limitation of the antenna arrays.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.7 pp.2377-2385

Publication Date: 2012/07/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.2377

Type of Manuscript: PAPER

Category: Antennas and Propagation

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Heedong CHOI, Yasutaka OGAWA, Toshihiko NISHIMURA, Takeo OHGANE, "Time-Reversal MUSIC Imaging with Time-Domain Gating Technique" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 7, pp. 2377-2385, July 2012, doi: 10.1587/transcom.E95.B.2377.
Abstract: A time-reversal (TR) approach with multiple signal classification (MUSIC) provides super-resolution for detection and localization using multistatic data collected from an array antenna system. The theory of TR-MUSIC assumes that the number of antenna elements is greater than that of scatterers (targets). Furthermore, it requires many sets of frequency-domain data (snapshots) in seriously noisy environments. Unfortunately, these conditions are not practical for real environments due to the restriction of a reasonable antenna structure as well as limited measurement time. We propose an approach that treats both noise reduction and relaxation of the transceiver restriction by using a time-domain gating technique accompanied with the Fourier transform before applying the TR-MUSIC imaging algorithm. Instead of utilizing the conventional multistatic data matrix (MDM), we employ a modified MDM obtained from the gating technique. The resulting imaging functions yield more reliable images with only a few snapshots regardless of the limitation of the antenna arrays.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.2377/_p

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@ARTICLE{e95-b_7_2377,
author={Heedong CHOI, Yasutaka OGAWA, Toshihiko NISHIMURA, Takeo OHGANE, },
journal={IEICE TRANSACTIONS on Communications},
title={Time-Reversal MUSIC Imaging with Time-Domain Gating Technique},
year={2012},
volume={E95-B},
number={7},
pages={2377-2385},
abstract={A time-reversal (TR) approach with multiple signal classification (MUSIC) provides super-resolution for detection and localization using multistatic data collected from an array antenna system. The theory of TR-MUSIC assumes that the number of antenna elements is greater than that of scatterers (targets). Furthermore, it requires many sets of frequency-domain data (snapshots) in seriously noisy environments. Unfortunately, these conditions are not practical for real environments due to the restriction of a reasonable antenna structure as well as limited measurement time. We propose an approach that treats both noise reduction and relaxation of the transceiver restriction by using a time-domain gating technique accompanied with the Fourier transform before applying the TR-MUSIC imaging algorithm. Instead of utilizing the conventional multistatic data matrix (MDM), we employ a modified MDM obtained from the gating technique. The resulting imaging functions yield more reliable images with only a few snapshots regardless of the limitation of the antenna arrays.},
keywords={},
doi={10.1587/transcom.E95.B.2377},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Time-Reversal MUSIC Imaging with Time-Domain Gating Technique
T2 - IEICE TRANSACTIONS on Communications
SP - 2377
EP - 2385
AU - Heedong CHOI
AU - Yasutaka OGAWA
AU - Toshihiko NISHIMURA
AU - Takeo OHGANE
PY - 2012
DO - 10.1587/transcom.E95.B.2377
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2012
AB - A time-reversal (TR) approach with multiple signal classification (MUSIC) provides super-resolution for detection and localization using multistatic data collected from an array antenna system. The theory of TR-MUSIC assumes that the number of antenna elements is greater than that of scatterers (targets). Furthermore, it requires many sets of frequency-domain data (snapshots) in seriously noisy environments. Unfortunately, these conditions are not practical for real environments due to the restriction of a reasonable antenna structure as well as limited measurement time. We propose an approach that treats both noise reduction and relaxation of the transceiver restriction by using a time-domain gating technique accompanied with the Fourier transform before applying the TR-MUSIC imaging algorithm. Instead of utilizing the conventional multistatic data matrix (MDM), we employ a modified MDM obtained from the gating technique. The resulting imaging functions yield more reliable images with only a few snapshots regardless of the limitation of the antenna arrays.
ER -