Range migration-based Doppler ambiguous integer estimation for moving targets with azimuth spectrum aliasing

Ying Zhang, Wei Xiong, Xichao Dong, Cheng Hu, Chengxiang Liu, Yang Sun

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

Abstract

In some case, the azimuth spectrum bandwidth is larger than the pulse repetition frequency (PRF), leading to a whole azimuth spectrum has been folded into multiple subsegments and aliased. Therefore, the traditional Doppler ambiguous integer estimation method cannot be used directly. In this paper, the influence of Doppler ambiguous integer on residual range migrations' slope is analyzed. Based on the slope, the Doppler ambiguous integer estimation method for moving targets with azimuth spectrum aliasing is given. From the simulation results, the Doppler ambiguous integer can be estimated accurately by proposed method.

Original languageEnglish
Title of host publication2019 6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728129129
DOIs
Publication statusPublished - Nov 2019
Event6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019 - Xiamen, China
Duration: 26 Nov 201929 Nov 2019

Publication series

Name2019 6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019

Conference

Conference6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019
Country/TerritoryChina
CityXiamen
Period26/11/1929/11/19

Keywords

  • Azimuth Doppler ambiguity (ADA)
  • Azimuth spectrum aliasing (ASA)
  • Ground moving target indication (GMTI)
  • Multichannel SAR

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Zhang, Y., Xiong, W., Dong, X., Hu, C., Liu, C., & Sun, Y. (2019). Range migration-based Doppler ambiguous integer estimation for moving targets with azimuth spectrum aliasing. In 2019 6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019 Article 9048571 (2019 6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APSAR46974.2019.9048571