Experimental and simulation research on micro-Doppler effect in laser coherent detection

Bi Da Su*, Su Hui Yang, Jing Feng Wang, Chang Ming Zhao, Hai Yang Zhang, Kang Zhao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Micro-Doppler effect and its mathematical model were discussed. The Micro-Doppler effect of vibration and rotation of moving point target were analyzed. The micro-Doppler frequency shift induced by vibration is simulated and proceeded by means of the time-frequency analysis. A micro-Doppler Solid-state coherent ladar system for detecting micro-motion of target was demonstrated to detect the micro-Doppler frequency shifts induced by vibration, complex micro motion and rotation, and the micro-Doppler frequency shift induced by rotations at 0.2 r/s or vibrations at 0.5Hz were detected. The information of micro-motion was extracted by the arithmetic of time-frequency analysis. These results are helpful for target's feature extraction and identification.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2009
Subtitle of host publicationLaser Sensing and Imaging
DOIs
Publication statusPublished - 2009
EventInternational Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging - Beijing, China
Duration: 17 Jun 200919 Jun 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7382
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Country/TerritoryChina
CityBeijing
Period17/06/0919/06/09

Keywords

  • Coherent ladar
  • Micro-Doppler effect
  • Time-frequency analysis

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