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Detection on micro-Doppler effect based on laser coherent radar

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Journal of Electronics (China)

Abstract

A laser coherent detection system of 1550 nm wavelength was presented, and experimental research on detecting micro-Doppler effect in a dynamic target was developed. In the study, the return signal in the time domain is decomposed into a set of components in different wavelet scales by multi-resolution wavelet analysis, and the components are associated with the vibrational motions in a target. Then micro-Doppler signatures are extracted by applying the reconstruction. During the course of the final data processing frequency analysis and time-frequency analysis are applied to analyze the vibrational signals and estimate the motion parameters successfully. The experimental results indicate that the system can effectively detect micro-Doppler information in a moving target, and the tiny vibrational signatures also can be acquired effectively by wavelet multi-resolution analysis and time-frequency analysis.

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Authors and Affiliations

  1. Factory 704 of Navy, Qingdao, 266109, China

    Yang Sun

  2. Institute of Opto-electronic Information, Yantai University, Yantai, 264005, China

    Jun Zhang

Authors
  1. Yang Sun
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  2. Jun Zhang
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Correspondence to Yang Sun.

Additional information

Communication author: Sun Yang, born in 1985, male, Master Degree.

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Sun, Y., Zhang, J. Detection on micro-Doppler effect based on laser coherent radar. J. Electron.(China) 29, 56–61 (2012). https://doi.org/10.1007/s11767-012-0544-1

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  • DOI: https://doi.org/10.1007/s11767-012-0544-1

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