Convergence Characteristics of the Adaptive Array Using RLS Algorithm
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概要
- 論文の詳細を見る
The convergence characteristics of the adaptive beamformer with the RLS algorithm are analyzed in this paper. In case of the RLS adaptive beamformer, the convergence characteristics are significantly affected by the spatial characteristics of the signals/noises in the environment. The purpose of this paper is to show how these physical parameters affect the convergence characteristics. In this paper, a typical environment where a few directional noises are accompanied by background noise is assumed, and the influence of each component of the environment is analyzed separately using rank analysis of the correlation matrix. For directional components, the convergence speed is faster for a smaller number of noise sources since the effective rank of the input correlation matrix is reduced. In the presence of background noise, the convergence speed is slowed down due to the increase of the effective rank. However, the convergence speed can be improved by controlling the initial matrix of the RLS algorithm. The latter section of this paper focuses on the physical interpretation of this initial matrix, in an attempt to elucidate the mechanism of the convergence characteristics.
- 社団法人電子情報通信学会の論文
- 1997-01-25
著者
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Suzuki Y
The Research Institute Of Electrical Communication Tohoku University
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Suzuki Y
Research Institute Of Electrical Communication And Graduate School Of Information Science Tohoku Uni
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Suzuki Y
Research Institute Of Electrical Communication Tohoku University
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Sone T
Tohoku Univ. Sendai‐shi Jpn
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Sone T
Akita Prefectural Univ. Honjo Jpn
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Sone T
Faculty Of Systems Science And Technology Akita Prefectural University
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Sone Toshio
The Akita Prefectural University
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Sone Toshio
Emeritus Professor Tohoku University
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Suzuki Yoiti
Graduate School Of Information Science Tohoku University
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Suzuki Y
Tohoku Univ. Sendai Jpn
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ASANO Futoshi
Electrotechnical Laboratory
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SUZUKI Yoiti
R. I. E. C., Tohoku University
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SONE Toshio
R. I. E. C., Tohoku University
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Sone T
Akita Prefectural Univ. Honjyo Jpn
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Suzuki Y
Research Institute Of Electrical Communication Graduate School Of Information Sciences Tohoku Univer
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Asano F
Graduate School Of Information Science Tohoku University
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Asano Futoshi
Media Interaction Group Information Technology Research Institute Aist
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