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Spread-Doppler clutter mitigation based on ionospheric irregularity learning for skywave radar

  • School of Electronics and Information Engineering, Harbin Institute of Technology

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

Abstract

The detection performance of skywave radar on slow moving targets is essentially limited by the energy of spread-Doppler clutter (SDC). Various factors may lead to SDC. It is hard to adopt a single mitigation strategy for all situations. The idea of different signal processing strategies for different regions is needed to solve such a complex problem. The regions need to be divided first to be processed using the knowledge-aided (KA) approach. The knowledge of different regions can be learned either from auxiliary devices or from data in the radar itself. Adaptive beamforming is rarely used to mitigate sea clutter due to its omnidirectional nature. However, the existence of ionospheric irregularity may give rise to spatial structures in sea clutter. In this work, we demonstrated the use of adaptive beamforming for SDC mitigation for skywave radar when ionospheric irregularity region was learned using correlation analysis with a KA approach. The performance of this approach was further validated by real data processing results.

Original languageEnglish
Title of host publicationICSP 2016 - 2016 IEEE 13th International Conference on Signal Processing, Proceedings
EditorsYuan Baozong, Ruan Qiuqi, Zhao Yao, An Gaoyun
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1651-1654
Number of pages4
ISBN (Electronic)9781509013449
DOIs
StatePublished - 2 Jul 2016
Externally publishedYes
Event13th IEEE International Conference on Signal Processing, ICSP 2016 - Chengdu, China
Duration: 6 Nov 201610 Nov 2016

Publication series

NameInternational Conference on Signal Processing Proceedings, ICSP
Volume0

Conference

Conference13th IEEE International Conference on Signal Processing, ICSP 2016
Country/TerritoryChina
CityChengdu
Period6/11/1610/11/16

Keywords

  • adaptive beamforming
  • irregularity
  • knowledge-aided (KA)
  • spread-Doppler clutter (SDC)

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