A Virtual Instrument for Micro Doppler Analysis of Signals in SAR/ISAR: Parameters Estimation and Focusing Moving Targets

Abstract

The micro-Doppler (m-D) effect appears in the synthetic aperture radar (SAR)/inverse SAR(ISAR) image of a target whenever the target has one or more rotating or vibrating parts. M-D effect introduces distortion in the SAR/ISAR images. On the other hand, m-D effect also carries information about the features of moving parts of a stationary or moving target that can be used for target identification purpose. Based on L-statistics, spectrogram, and inverse Radon transform, a radar data exploitation Matlab toolbox was developed for classifying air, land and ocean targets, which helps Geospatial Intelligence (GEOINT) support to Canadian Forces. This toolbox will scan and search any M-D activity in the desired area of the SAR/ISAR image. The toolbox has three options 1) Focus the stationary target if there is no m-D, 2) Focus the target after removing the m-D, and 3) extract the m-D and determine the motion parameters. The toolbox was tested and validated against a variety of simulated and measured targets.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2014
Accession Number
AD1004180

Entities

People

  • T. Thayaparan

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Classification
  • Computing-Related Activities
  • Data Analysis
  • Data Science
  • Doppler Effect
  • Experimental Data
  • Frequency
  • Geospatial Intelligence
  • Information Science
  • Moving Targets
  • Radar
  • Rotating Antennas
  • Security
  • Statistics
  • Synthetic Aperture Radar
  • Targets

Readers

  • Computer Vision.
  • Geochemistry
  • Radar Systems Engineering.