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Underdetermined DOA estimation with unknown source number in nonuniform noise

  • Guojun Jiang
  • , Xingpeng Mao
  • , Mianzhi Wang
  • , Yongtan Liu
  • , Arye Nehorai
  • School of Electronics and Information Engineering, Harbin Institute of Technology
  • Washington University St. Louis

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

Abstract

We present a new direction-of-arrival (DOA) estimator for nested arrays, which does not require source number knowledge and works in the presence of nonuniform noise. We first give the number of unique elements and the number of elements which appear more than once in the difference coarray obtained from the nested arrays. Then we construct 2N - 5 Toeplitz matrices based on the elements appearing more than once. Finally, we introduce a method for DOA estimation which does not require the source number information. Numerical examples are provided to demonstrate the effectiveness of the proposed algorithm.

Original languageEnglish
Title of host publication2018 IEEE Radar Conference, RadarConf 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1422-1426
Number of pages5
ISBN (Electronic)9781538641675
DOIs
StatePublished - 8 Jun 2018
Externally publishedYes
Event2018 IEEE Radar Conference, RadarConf 2018 - Oklahoma City, United States
Duration: 23 Apr 201827 Apr 2018

Publication series

Name2018 IEEE Radar Conference, RadarConf 2018

Conference

Conference2018 IEEE Radar Conference, RadarConf 2018
Country/TerritoryUnited States
CityOklahoma City
Period23/04/1827/04/18

Keywords

  • DOA estimation
  • nested array
  • nonuniform noise
  • source number knowledge

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