Range autofocus for linearly frequency-modulated continuous wave radar

R.J.C. Middleton, D.G. Macfarlane, D.A. Robertson

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A software-based method for estimating and compensating for chirp non-linearity in frequency-modulated continuous wave radars is described. The method is based on the phase-gradient algorithm and time-domain warping of the dechirped signal. The method is demonstrated both on typically and severely non-linear chirps. The retrospective application is demonstrated on archive radar data.

Original languageEnglish
Pages (from-to)288-295
Number of pages8
JournalIET Radar Sonar and Navigation
Volume5
Issue number3
DOIs
Publication statusPublished - Mar 2011

Keywords

  • FMCW
  • Systems
  • SAR

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