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Single-Side Two-Location Spotlight Imaging for Building Based on MIMO Through-Wall-Radar.

Yong Jia1, Xiaoling Zhong2, Jiangang Liu3

  • 1College of Information Science and Technology, Chengdu University of Technology, Chengdu 610059, China. jiayong2014@cdut.edu.cn.

Sensors (Basel, Switzerland)
|September 13, 2016
PubMed
Summary

This study introduces a simple, single-sided radar imaging method using multiple-input multiple-output (MIMO) radar. The technique effectively maps building layouts and detects stationary targets by imaging corners instead of walls.

Keywords:
MIMOspotlight imagingstationary target detectionthrough-wall-radar imagingwall layout mapping

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Area of Science:

  • Electrical Engineering
  • Radar Systems
  • Electromagnetics

Background:

  • Through-wall radar imaging is crucial for building mapping and detecting internal stationary targets.
  • Existing methods face challenges with complexity and signal interference.

Purpose of the Study:

  • To present an easy, single-side, two-location spotlight imaging method for through-wall radar.
  • To enable both building wall layout mapping and stationary target detection using MIMO radar.

Main Methods:

  • Utilizing a multiple-input multiple-output (MIMO) through-wall radar system.
  • Employing a single-side, two-location deployment strategy with spotlight imaging and two squint-views.
  • Generating building corner images to indirectly map wall layouts.
  • Applying incoherent additive fusion and 2D CA-CFAR detection for image processing.

Main Results:

  • Successfully generated clear images of building corners and stationary targets.
  • Demonstrated effective wall layout mapping and target detection with the proposed method.
  • Validated the technique using Computer Simulation Technology (CST) electromagnetic simulation software.
  • Achieved reduced multi-path ghosts and side-lobe interferences compared to direct wall imaging.

Conclusions:

  • The proposed single-side, two-location spotlight imaging method offers an efficient and effective approach for through-wall radar applications.
  • This technique simplifies implementation while enhancing imaging quality for both structural mapping and target detection.
  • The indirect corner imaging strategy proves advantageous in mitigating common radar imaging artifacts.