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Comparison of Detection Probability for Conventional and Time-Reversal (TR) Radar Systems

  • Yoo, Hyung-Ha (Graduate School of Information & Telecommunication. Inha University) ;
  • Koh, Il-Suek (Dept. of Electronic Engineering, Inha University)
  • Received : 2011.08.25
  • Accepted : 2012.02.16
  • Published : 2012.03.31

Abstract

We compare the detection probabilities of the time-reversal(TR) detection system and the conventional radar system. The target is assumed to be hidden inside a random medium such as a forest. We propose a TR detection system based on the SAR(Synthetic Aperture Radar) algorithm. Unlike the conventional SAR images, the proposed TR-SAR system has an interesting property. Specifically, the target-related signal components due to the time-reversal refocusing characteristics, as well as some of clutter-related signal components are concentrated at the time-reversal reference point. The remaining clutter-related signal components are scattered around that reference point. In this paper, we model the random media as a collection of point scatterers to avoid unnecessary complexities. We calculate the detection probability of the TR radar system based on the proposed simple random media model.

Keywords

Time-Reversal;Target Detection;SAR;TR-SAR;Detection Probability

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