Comparison of range migration correction algorithms for range-Doppler processing

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Abstract

The next generation digital radars are able to provide high-range resolution by the advancement of radar hardware technologies. These systems take advantage of coherent integration and Doppler processing technique to increase the target’s signal-to-noise ratio. Due to the high-range resolution (small range cells) and fast target motion, a target migrates through multiple range cells within a coherent processing interval. Range cell migration (also known as range walk) occurs and degrades the coherent integration gain. There are many approaches in the literature to correct these unavoidable effects and focus the target in the range-Doppler domain. We demonstrate some of these methods on an operational frequency-modulated continuous-wave (FMCW) radar and point out practical issues in the application.
Original languageEnglish
Article number036023
Pages (from-to)036023-1/036023-10
Number of pages10
JournalJournal of Applied Remote Sensing
Volume11
Issue number3
DOIs
Publication statusPublished - 2017

Keywords

  • range-Doppler focusing
  • keystone
  • range migration correction
  • coherent integration

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