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2020 Vol.39, Issue 3 Preview Page

Research Article

A study on the broadband beam pattern synthesis using spatial response variation

공간 응답 변화량을 적용한 광대역 빔 형성기 설계법

Jun Seok Lim1∗
,
Keunhwa Lee2
,
Jae-Kyun Ahn3
임 준석1∗
,
이 근화2
,
안 재균3
1세종대학교 전자정보통신공학과
2세종대학교 국방시스템공학과
3국방과학연구소
∗Corresponding Author
31 May 2020. pp. 200-206
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Abstract

In this paper, we propose a broadband beamforming method using the Spatial Response Variation (SRV) which is defined to measure the fluctuation of the array spatial response within the desired frequency band. By applying the SRV to regularization term, we achieve a good quality main beam width variation less than 1 degree within the desired frequency band. In design experiments, we show that the proposed method is better than the existing method.

Keywords
Broadband beamforming
Spatial Response Variation (SRV)
Frequency Invariant BeamPattern (FIBP)
Convex optimization

본 논문은 공간 응답 변화량(Spatial Response Variation, SRV)을 사용한 광대역 빔 형성 방법을 제안한다. SRV를 정규화 항으로 적용하여 목표하는 주파수 대역에서 주 빔 폭의 변동이 약 1도 이내로 적은 양질의 광대역 빔 패턴을 얻도록 하였다. 설계 실험에서 제안 된 방법이 기존 방법보다 낫다는 것을 입증하였다.

키워드
광대역 빔형성기
공간 응답 변화량
주파수 불변 빔패턴
볼록 최적화
References
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Information
  • Publisher :The Acoustical Society of Korea
  • Publisher(Ko) :한국음향학회
  • Journal Title :The Journal of the Acoustical Society of Korea
  • Journal Title(Ko) :한국음향학회지
  • Volume : 39
  • No :3
  • Pages :200-206
  • Received Date : 2020-02-11
  • Revised Date : 2020-03-23
  • Accepted Date : 2020-03-31
  • DOI :https://doi.org/10.7776/ASK.2020.39.3.200
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