A phase compensation method for azimuth interpolation based on zero-padded DFT in interferometric ISAR imaging

Zhengkun Yuan, Junling Wang, Li Zhi Zhao, Meiguo Gao, Yong Zhang

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

7 Citations (Scopus)

Abstract

In interferometirc inverse synthetic aperture radar (InISAR) imaging, the azimuth interpolation based on zero-padded DFT changes the phase of each scattering center. This paper studies the adverse effects of zero-padded DFT method on the phase information. A phase compensation method to eliminate the phase error caused by zero-padded DFT is proposed. Besides, the effects of adding a hamming window before azimuth DFT on this method is also investigated. Simulation results show that the theoretical analysis is correct and the proposed phase compensation method is effective.

Original languageEnglish
Title of host publication2016 CIE International Conference on Radar, RADAR 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509048281
DOIs
Publication statusPublished - 4 Oct 2017
Event2016 CIE International Conference on Radar, RADAR 2016 - Guangzhou, China
Duration: 10 Oct 201613 Oct 2016

Publication series

Name2016 CIE International Conference on Radar, RADAR 2016

Conference

Conference2016 CIE International Conference on Radar, RADAR 2016
Country/TerritoryChina
CityGuangzhou
Period10/10/1613/10/16

Keywords

  • Hamming window
  • InISAR
  • Zero-padded DFT

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