Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis

XIAO Jinguo; DU Lan; HAN Xun; CAO Wenjie; LIU Hongwei

doi:10.11999/JEIT150505

Volume 38 Issue 1

Jan. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(1): 90-96

XIAO Jinguo, DU Lan, HAN Xun, CAO Wenjie, LIU Hongwei. Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis[J]. Journal of Electronics & Information Technology, 2016, 38(1): 90-96. doi: 10.11999/JEIT150505

Citation:

XIAO Jinguo, DU Lan, HAN Xun, CAO Wenjie, LIU Hongwei. Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis[J]. Journal of Electronics & Information Technology, 2016, 38(1): 90-96. doi: 10.11999/JEIT150505

Citation:

XIAO Jinguo, DU Lan, HAN Xun, CAO Wenjie, LIU Hongwei. Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis[J]. Journal of Electronics & Information Technology, 2016, 38(1): 90-96. doi: 10.11999/JEIT150505

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Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis

doi: 10.11999/JEIT150505

Funds:

The National Natural Science Foundation of China (61271024, 61201292, 61322103), The Foundation for Doctoral Supervisor of China (20130203110013), The Science Foundation of Shaanxi Province (2015JZ016)

Received Date: 2015-04-30
Rev Recd Date: 2015-09-06
Publish Date: 2016-01-19

Abstract

Abstract

The micro-Doppler signatures can be utilized to the estimation of the motion and structure parameters of the targets. In this paper, based on the effective point scatterer model of the cone-skirt shaped target, the formulas of micro-Doppler induced by the precession are derived. Since the micro-Doppler curves induced by the precession are in the forms of the multi-stage superimposed sine series for the cone-skirt shaped target, an approach to extract the micro-Doppler frequency based on the parameterized time-frequency analysis is proposed. In this method, the precession frequency is first estimated via the Coherent Single Range Doppler Interferometry (CSRDI) algorithm, then the micro-Doppler curve of each scatterer is estimated based on the parameterized time-frequency analysis, and finally the scatterers echoes can be separated with the band-stop filter. In the simulation experiments, the proposed method is evaluated based on the electromagnetic computation data.
- Cone-skirt shaped target,
- Precession,
- Micro-Doppler,
- Parameterized time-frequency analysis,
- Coherent Single Range Doppler Interferometry (CSRDI) algorithm

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References(24)

References

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