대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 추계학술대회 논문집 학회본부 B
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- Pages.703-705
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- 1999
개선된 ESPRIT 알고리즘을 이용한 퍼진 신호의 신호도착방향 추정
Estimation of Distributed Signal's Direction of Arrival Using Advanced ESPRIT Algorithm
- Chung, Sung-Hoon (Dept. of Electrical Engineering, Dongguk Univ.) ;
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Lee, Dong-Wook
(Dept. of Electrical Engineering, Dongguk Univ.)
- 발행 : 1999.11.20
초록
In this paper, we introduce the direction of arrival(DOA) estimation of distributed signal based on the improved ESPRIT algorithm. Most research on the estimation of DOA has been performed based on the assumption that the signal sources are point sources. However, we consider a two-dimensional distributed signal source model using improved ESPRIT algorithm. In the distributed signal source model, a source is represented by two parameters, the azimuth angle and elevation angle. We address the estimation of the elevation and azimuth angles of distributed sources based on the parametric source modeling in the three-dimensional space with two uniform linear arrays. The array output vector is obtained by integrating a steering vector over all direction of arrival with the weighting of a distributed source density function. We also develop an efficient estimation procedures that can reduce the computational complexity. Some examples are shown to demonstrate explicity the estimation procedures under the distributed signal source model.
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