The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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A Study on Direction of Arrival Algorithm using Optimum Weight and Steering Direction Vector of MUSIC Algorithm

MUSIC알고리즘의 지향 방향벡터와 최적 가중치를 이용한 도래방향 추정 알고리즘 연구

  • Received : 2012.06.12
  • Accepted : 2012.08.10
  • Published : 2012.08.31
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Abstract

This paper estimates the direction of arrival of desired a target using propagation wave in spatial. Direction of arrival estimation is to find desired target position among received signal to receiver array antennas. In this paper, we estimated direction of arrival for target, by using cost function and high resolution MUSIC algorithm, in order to direction of arrival estimation, and calculated optimum weight vector. Through simulation, in regard to the estimation of the arrival direction of a target, the performances of the existing ESPRIT algorithm and the proposed algorithm were comparatively analyzed. In the estimation time of the arrival direction of a target object, the proposed algorithm showed an improvement of approximately as compared to the existing ESPRIT algorithm.

본 연구는 공간상에서 전파를 이용하여 원하는 목표물의 도래 방향을 추정 한다. 도래방향 추정은 수신 배열 안테나들로 입사하는 신호들 중에서 원하는 목표물의 위치를 찾는 것이다. 본 연구에서는 도래방향 추정의 고 분해능 MUSIC알고리즘과 비용함수를 사용하여 목표물에 대한 도래방향을 추정하였고, 최적의 가중치를 계산하였다. 모의실험을 통하여 목표물 도래 방향 추정에서 기존 ESPRIT 알고리즘과 제안 알고리즘의 성능을 비교 분석 하였다. 목표물 도래 방향 추정에서 제안한 알고리즘이 기존의 ESPRIT 알고리즘보다 도래 방향 추정 능력이 향상되었다.

Keywords

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