Precise recognition of warhead and decoy based on components of micro-Doppler frequency curves

Kun Yi Guo*, Xin Qing Sheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

From the view of electromagnetic scattering, it is indicated that the micro-Doppler (m-D) characteristics of an extended target undergoing micro-motions are actually induced by the change of incident directions of radar pulses. Different micro-motions may lead to similar change of incident directions, consequently inducing similar m-D characteristics. To tackle this problem, rather than distinguish warhead and decoy directly from m-D characteristics, the frequency components of m-D frequency curves are used as a new characteristic for recognition in this paper. To get high precision of frequency components estimation, model-based parameter estimation (MBPE) is utilized to extract the m-D frequency curves from TFR. To obtain high accurate simulation results, the backscattered signal simulation is conducted by full-wave numerical method. The simulation results validate the theoretical analysis and the high performance of the proposed method.

Original languageEnglish
Pages (from-to)850-856
Number of pages7
JournalScience China Information Sciences
Volume55
Issue number4
DOIs
Publication statusPublished - Apr 2012

Keywords

  • micro-Doppler(m-D)
  • model-based parameter estimation (MBPE)
  • target recognition
  • time-frequency representation (TFR)

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