https://scholars.lib.ntu.edu.tw/handle/123456789/122131
標題: | Robust adaptive array beamforming under steering angle mismatch | 作者: | Lee, Ju-Hong Cheng, Kuang-Peng Wang, Chih-Chang |
關鍵字: | Adaptive array beamforming; Steering angle error | 公開日期: | 2006 | 卷: | 86 | 期: | 2 | 起(迄)頁: | 296-309 | 來源出版物: | Signal Processing | 摘要: | The problem of adaptive array beamforming with multiple-beam constraints in the presence of steering angle error is considered. We first construct a cost function consisting of terms that utilize a posteriori information due to the received array data and an exponential constraint associated with steering angle error, respectively. Then, an appropriate estimate of the actual phase angle vector associated with each of the desired signals can be obtained by performing nonlinear optimization based on the cost function. An implementation algorithm is further presented to iteratively solve the problem. Theoretical analysis regarding the convergence property of the iterative procedure is also investigated. Finally, several computer simulation examples are provided for illustration and comparison. © 2005 Elsevier B.V. All rights reserved. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/155851 https://www.scopus.com/inward/record.uri?eid=2-s2.0-28244479486&doi=10.1016%2fj.sigpro.2005.05.009&partnerID=40&md5=ff6fb5194e41d4f03ae64b8bb21b83c8 |
ISSN: | 01651684 | SDG/關鍵字: | Adaptive systems; Algorithms; Convergence of numerical methods; Information analysis; Optimization; Problem solving; Steering; Adaptive array beamforming; Exponential constraint; Phase angle vectors; Steering angle error; Robustness (control systems) |
顯示於: | 電信工程學研究所 |
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