Journal of electromagnetic engineering and science

  • 제14권4호
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  • Pages.405-410
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  • 2014
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Target-to-Clutter Ratio Enhancement of Images in Through-the-Wall Radar Using a Radiation Pattern-Based Delayed-Sum Algorithm

  • Lim, Youngjoon (The School of Electrical Engineering and Computer Science, Institute of New Media and Communications, Seoul National University) ;
  • Nam, Sangwook (The School of Electrical Engineering and Computer Science, Institute of New Media and Communications, Seoul National University)
  • 투고 : 2014.09.17
  • 심사 : 2014.11.10
  • 발행 : 2014.12.30
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초록

In this paper, we compare the quality of images reconstructed by a conventional delayed-sum (DS) algorithm and radiation pattern-based DS algorithm. In order to evaluate the quality of images, we apply the target-to-clutter ratio (TCR), which is commonly used in synthetic aperture radar (SAR) image assessment. The radiation pattern-based DS algorithm enhances the TCR of the image by focusing the target signals and preventing contamination of the radar scene. We first consider synthetic data obtained through GprMax2D/3D, a finite-difference time-domain (FDTD) forward solver. Experimental data of a 2-GHz bandwidth stepped-frequency signal are collected using a vector network analyzer (VNA) in an anechoic chamber setup. The radiation pattern-based DS algorithm shows a 6.7-dB higher TCR compared to the conventional DS algorithm.

키워드

참고문헌

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