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Ionospheric clutter suppression using Wavelet Oblique Projecting Filter

  • 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 High Frequency Surface Wave Radar (HFSWR) is influenced by the nonstationary ionospheric clutter. For decades, ionospheric clutter suppression is always a challenging problem. Targets and ionospheric clutter have different 2D scale features in Range-Doppler map (RD map) of radar because of different stationarity and range correlation. 2D Discrete Wavelet Transform (2D-DWT) have advantages of separating such nonstationary signals with different 2D scales, so Wavelet Feature Vector (WFV) constructed by 2D-DWT is used to describe this feature in this paper. Based on the nonorthogonality and disjointness of target and clutter subspaces spanned by the WFVs, Wavelet Oblique Projecting Filter (WOPF) method is proposed to suppress the clutter. Experimental results show that this method can suppress clutter and extract targets effectively.

Original languageEnglish
Title of host publication2017 IEEE Radar Conference, RadarConf 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1552-1556
Number of pages5
ISBN (Electronic)9781467388238
DOIs
StatePublished - 7 Jun 2017
Externally publishedYes
Event2017 IEEE Radar Conference, RadarConf 2017 - Seattle, United States
Duration: 8 May 201712 May 2017

Publication series

Name2017 IEEE Radar Conference, RadarConf 2017

Conference

Conference2017 IEEE Radar Conference, RadarConf 2017
Country/TerritoryUnited States
CitySeattle
Period8/05/1712/05/17

Keywords

  • HFSWR
  • Ionospheric clutter
  • Oblique projecting filter
  • Wavelet

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