False Image Suppression in Two-Dimensional Shape Estimates of a Walking Human Using Multiple Ultra-Wideband Doppler Radar Interferometers

Hiroki YAMAZAKI; Takuya SAKAMOTO; Hirofumi TAKI; Toru SATO

doi:10.1587/transcom.2015ISP0024

False Image Suppression in Two-Dimensional Shape Estimates of a Walking Human Using Multiple Ultra-Wideband Doppler Radar Interferometers

Hiroki YAMAZAKI, Takuya SAKAMOTO, Hirofumi TAKI, Toru SATO

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Microwave systems have a number of promising applications in surveillance and monitoring systems. The main advantage of microwave systems is their ability to detect targets at distance under adverse conditions such as dim, smoky, and humid environments. Specifically, the wide bandwidth of ultra-wideband radar enables high range resolution. In a previous study, we proposed an accurate shape estimation algorithm for multiple targets using multiple ultra-wideband Doppler interferometers. However, this algorithm produces false image artifacts under conditions with severe interference. The present paper proposes a technique to suppress such false images by detecting inconsistent combinations of the radial velocity and time derivative of image positions. We study the performance of the proposed method through numerical simulations of a two-dimensional section of a moving human body, and demonstrate the remarkable performance of the proposed method in suppressing false image artifacts in many scenarios.

Publication: IEICE TRANSACTIONS on Communications Vol.E99-B No.1 pp.134-142

Publication Date: 2016/01/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2015ISP0024

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)

Category: Sensing

Authors

Hiroki YAMAZAKI
  Kyoto University
Takuya SAKAMOTO
  University of Hyogo
Hirofumi TAKI
  Tohoku University
Toru SATO
  Kyoto University

Keyword

ultra-wideband radar, multiple interferometers, Doppler radar, walking human, shape estimation, false image rejection

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Hiroki YAMAZAKI, Takuya SAKAMOTO, Hirofumi TAKI, Toru SATO, "False Image Suppression in Two-Dimensional Shape Estimates of a Walking Human Using Multiple Ultra-Wideband Doppler Radar Interferometers" in IEICE TRANSACTIONS on Communications, vol. E99-B, no. 1, pp. 134-142, January 2016, doi: 10.1587/transcom.2015ISP0024.
Abstract: Microwave systems have a number of promising applications in surveillance and monitoring systems. The main advantage of microwave systems is their ability to detect targets at distance under adverse conditions such as dim, smoky, and humid environments. Specifically, the wide bandwidth of ultra-wideband radar enables high range resolution. In a previous study, we proposed an accurate shape estimation algorithm for multiple targets using multiple ultra-wideband Doppler interferometers. However, this algorithm produces false image artifacts under conditions with severe interference. The present paper proposes a technique to suppress such false images by detecting inconsistent combinations of the radial velocity and time derivative of image positions. We study the performance of the proposed method through numerical simulations of a two-dimensional section of a moving human body, and demonstrate the remarkable performance of the proposed method in suppressing false image artifacts in many scenarios.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2015ISP0024/_p

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@ARTICLE{e99-b_1_134,
author={Hiroki YAMAZAKI, Takuya SAKAMOTO, Hirofumi TAKI, Toru SATO, },
journal={IEICE TRANSACTIONS on Communications},
title={False Image Suppression in Two-Dimensional Shape Estimates of a Walking Human Using Multiple Ultra-Wideband Doppler Radar Interferometers},
year={2016},
volume={E99-B},
number={1},
pages={134-142},
abstract={Microwave systems have a number of promising applications in surveillance and monitoring systems. The main advantage of microwave systems is their ability to detect targets at distance under adverse conditions such as dim, smoky, and humid environments. Specifically, the wide bandwidth of ultra-wideband radar enables high range resolution. In a previous study, we proposed an accurate shape estimation algorithm for multiple targets using multiple ultra-wideband Doppler interferometers. However, this algorithm produces false image artifacts under conditions with severe interference. The present paper proposes a technique to suppress such false images by detecting inconsistent combinations of the radial velocity and time derivative of image positions. We study the performance of the proposed method through numerical simulations of a two-dimensional section of a moving human body, and demonstrate the remarkable performance of the proposed method in suppressing false image artifacts in many scenarios.},
keywords={},
doi={10.1587/transcom.2015ISP0024},
ISSN={1745-1345},
month={January},}

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TY - JOUR
TI - False Image Suppression in Two-Dimensional Shape Estimates of a Walking Human Using Multiple Ultra-Wideband Doppler Radar Interferometers
T2 - IEICE TRANSACTIONS on Communications
SP - 134
EP - 142
AU - Hiroki YAMAZAKI
AU - Takuya SAKAMOTO
AU - Hirofumi TAKI
AU - Toru SATO
PY - 2016
DO - 10.1587/transcom.2015ISP0024
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E99-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2016
AB - Microwave systems have a number of promising applications in surveillance and monitoring systems. The main advantage of microwave systems is their ability to detect targets at distance under adverse conditions such as dim, smoky, and humid environments. Specifically, the wide bandwidth of ultra-wideband radar enables high range resolution. In a previous study, we proposed an accurate shape estimation algorithm for multiple targets using multiple ultra-wideband Doppler interferometers. However, this algorithm produces false image artifacts under conditions with severe interference. The present paper proposes a technique to suppress such false images by detecting inconsistent combinations of the radial velocity and time derivative of image positions. We study the performance of the proposed method through numerical simulations of a two-dimensional section of a moving human body, and demonstrate the remarkable performance of the proposed method in suppressing false image artifacts in many scenarios.
ER -