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2017-04-19

A Novel Non-Coherent Micro-Doppler Imaging Method Using Hybrid Optimization

By Mahdi Safari and Ali Abdolali
Progress In Electromagnetics Research M, Vol. 56, 53-61, 2017
doi:10.2528/PIERM17022207

Abstract

Conventional radar imaging methods use coherent analysis which highlights the necessity of signal phase measurement setups and complex inverse algorithms. To mitigate these drawbacks, this paper proposes a novel phase-less imaging algorithm. A nonlinear over-determined system of equations based on signal Doppler shift is developed, and a new error function originated from least square method is introduced. To obtain the exact position of targets, hybrid optimization is applied to the achieved error function. Simulation results demonstrate that the proposed method is well capable of detecting the targets containing strong point scatterers, even with the distance of 1cm. Also, the resolution of imaging algorithm for point scatterer circumstances is obtained in the order of millimeter. Concurrent with the priory imaging algorithms with the same imaging setups using proposed method reduces complexity and increases imaging swiftness.

Citation


Mahdi Safari and Ali Abdolali, "A Novel Non-Coherent Micro-Doppler Imaging Method Using Hybrid Optimization," Progress In Electromagnetics Research M, Vol. 56, 53-61, 2017.
doi:10.2528/PIERM17022207
http://www.jpier.org/PIERM/pier.php?paper=17022207

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