Time-reversal ESPRIT imaging method for the detection of single target

Wei Gao, Xiao-Hua Wang and Bing-Zhong Wang

Journal of Electromagnetic Waves and Applications, 2014, vol. 28, issue 5, 634-640

Abstract: Estimation of signal parameters via rotational invariance techniques (ESPRIT) is employed to time-reversal (TR) imaging for single target in this paper. By the precondition of ESPRIT, the signal subspace is divided into two parts, which are connected with each other by a transfer matrix. This transfer matrix can be used to get the TR-ESPRIT imaging pseudo-spectrum. Two examples corresponding to the noise-free and noise case are considered. The last simulated results show that the proposed TR-ESPRIT method has higher resolution than the conventional decomposition of the time-reversal operator method, and it can keep the efficiency of time reversal operator-based imaging by the signal subspace.

Date: 2014
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DOI: 10.1080/09205071.2014.882797

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