The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Estimating Angle-of-Arrival of UWB Cluster signals in an Indoor-to-Outdoor Wireless Communication

실내와 실외 무선통신 환경에서 초광대역 클러스터 신호의 도착 방향 추정

  • 이용업 (한림대학교 정보통신공학부 전자공학 전공 통신시스템 연구실) ;
  • 서영준 (한림대학교 정보통신공학부 전자공학 전공 통신시스템 연구실) ;
  • 최진규 (홍익대학교 전자전기컴퓨터공학부 전자공학)
  • Published : 2006.05.01
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Abstract

In this study, an ultra-wideband(UWB) signal model is considered to estimate the angle-of-arrivals(AOAs) of clusters in an UWB indoor-to-outdoor communication environment having random angle spreads. A conventional AOA algorithm for UWB estimates the directions of both clusters and multipath signals together and so has complex estimation procedure. In order to solve that problem, we propose a new clustered AOA estimation algorithm. The estimation technique based a well-known MUSIC algorithm is proposed and the estimates of the AOA on received clusters are obtained using the proposed technique. The proposed model and estimation technique are verified through computer simulations.

본 논문에서는 불규칙한 각도 퍼짐을(Random Angle Spread) 가지는 실내와 실외 무선통신환경에서의 초광대역(UWB) 클러스터 신호들의 도착 방향을(Angle-of-Arrival) 추정하기 위하여 초광대역 신호 모형을 고려한다. 기존의 UWB 방향 추정 알고리즘은 다중경로 신호와 클러스터 방향을 모두 추정하는 과정으로 복잡한데, 이를 극복하기 위해 클러스터 자체 방향만을 따로 추정할 수 있는 알고리즘을 제안한다. 잘 알려진 다중신호분류(MUSIC) 알고리즘을 기반으로 한 추정 기술을 제안하고 제안된 추정 기술에 의하여 수신 클러스터에 대한 도착 방향 추정치가 얻어진다. 제안한 신호 모형과 추정 기술은 컴퓨터 모의실험에 의하여 증명된다.

Keywords

References

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