A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar

Byungjoon KIM; Duksoo KIM; Youngjoon LIM; Dooheon YANG; Sangwook NAM; Jae-Hoon SONG

doi:10.1587/transele.E99.C.597

A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar

Byungjoon KIM, Duksoo KIM, Youngjoon LIM, Dooheon YANG, Sangwook NAM, Jae-Hoon SONG

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This paper proposes a high clutter-rejection technique for wall-penetrating frequency-modulated continuous-wave (FMCW) radar. FMCW radars are widely used, as they moderate the receiver saturation problem in wall-penetrating applications by attenuating short-range clutter such as wall-clutter. However, conventional FMCW radars require a very high-order high-pass filter (HPF) to attenuate short-range clutter. A delay-line (DL) is exploited to overcome this problem. Time-delay shifts beat frequencies formed by reflection waves. This means that a proper time-delay increases the ratio of target-beat frequency to clutter-beat frequency. Consequently, low-order HPF fully attenuates short-range clutter. A third-order HPF rejects more than 20 dB and 30 dB for clutter located at 6 m and 3 m, respectively, with a target located at 9 m detection with a 10,000 GHz/s chirp rate and a 28 ns delay-line.

Publication: IEICE TRANSACTIONS on Electronics Vol.E99-C No.5 pp.597-600

Publication Date: 2016/05/01

Publicized

Online ISSN: 1745-1353

DOI: 10.1587/transele.E99.C.597

Type of Manuscript: BRIEF PAPER

Category: Microwaves, Millimeter-Waves

Authors

Byungjoon KIM
  Seoul National Univ.
Duksoo KIM
  Seoul National Univ.
Youngjoon LIM
  Seoul National Univ.
Dooheon YANG
  Seoul National Univ.
Sangwook NAM
  Seoul National Univ.
Jae-Hoon SONG
  Seoul National Univ.

Keyword

clutter rejection, wall-penetrating, FMCW, delay-line, filter

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Byungjoon KIM, Duksoo KIM, Youngjoon LIM, Dooheon YANG, Sangwook NAM, Jae-Hoon SONG, "A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar" in IEICE TRANSACTIONS on Electronics, vol. E99-C, no. 5, pp. 597-600, May 2016, doi: 10.1587/transele.E99.C.597.
Abstract: This paper proposes a high clutter-rejection technique for wall-penetrating frequency-modulated continuous-wave (FMCW) radar. FMCW radars are widely used, as they moderate the receiver saturation problem in wall-penetrating applications by attenuating short-range clutter such as wall-clutter. However, conventional FMCW radars require a very high-order high-pass filter (HPF) to attenuate short-range clutter. A delay-line (DL) is exploited to overcome this problem. Time-delay shifts beat frequencies formed by reflection waves. This means that a proper time-delay increases the ratio of target-beat frequency to clutter-beat frequency. Consequently, low-order HPF fully attenuates short-range clutter. A third-order HPF rejects more than 20 dB and 30 dB for clutter located at 6 m and 3 m, respectively, with a target located at 9 m detection with a 10,000 GHz/s chirp rate and a 28 ns delay-line.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E99.C.597/_p

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@ARTICLE{e99-c_5_597,
author={Byungjoon KIM, Duksoo KIM, Youngjoon LIM, Dooheon YANG, Sangwook NAM, Jae-Hoon SONG, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar},
year={2016},
volume={E99-C},
number={5},
pages={597-600},
abstract={This paper proposes a high clutter-rejection technique for wall-penetrating frequency-modulated continuous-wave (FMCW) radar. FMCW radars are widely used, as they moderate the receiver saturation problem in wall-penetrating applications by attenuating short-range clutter such as wall-clutter. However, conventional FMCW radars require a very high-order high-pass filter (HPF) to attenuate short-range clutter. A delay-line (DL) is exploited to overcome this problem. Time-delay shifts beat frequencies formed by reflection waves. This means that a proper time-delay increases the ratio of target-beat frequency to clutter-beat frequency. Consequently, low-order HPF fully attenuates short-range clutter. A third-order HPF rejects more than 20 dB and 30 dB for clutter located at 6 m and 3 m, respectively, with a target located at 9 m detection with a 10,000 GHz/s chirp rate and a 28 ns delay-line.},
keywords={},
doi={10.1587/transele.E99.C.597},
ISSN={1745-1353},
month={May},}

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TY - JOUR
TI - A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar
T2 - IEICE TRANSACTIONS on Electronics
SP - 597
EP - 600
AU - Byungjoon KIM
AU - Duksoo KIM
AU - Youngjoon LIM
AU - Dooheon YANG
AU - Sangwook NAM
AU - Jae-Hoon SONG
PY - 2016
DO - 10.1587/transele.E99.C.597
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E99-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 2016
AB - This paper proposes a high clutter-rejection technique for wall-penetrating frequency-modulated continuous-wave (FMCW) radar. FMCW radars are widely used, as they moderate the receiver saturation problem in wall-penetrating applications by attenuating short-range clutter such as wall-clutter. However, conventional FMCW radars require a very high-order high-pass filter (HPF) to attenuate short-range clutter. A delay-line (DL) is exploited to overcome this problem. Time-delay shifts beat frequencies formed by reflection waves. This means that a proper time-delay increases the ratio of target-beat frequency to clutter-beat frequency. Consequently, low-order HPF fully attenuates short-range clutter. A third-order HPF rejects more than 20 dB and 30 dB for clutter located at 6 m and 3 m, respectively, with a target located at 9 m detection with a 10,000 GHz/s chirp rate and a 28 ns delay-line.
ER -