Advanced Search
Volume 29 Issue 12
Jan.  2011
Turn off MathJax
Article Contents
Lin Jing-ran, Peng Qi-cong, Shao Huai-zong, Ju Tai-liang. Robust Adaptive Beamforming In Spatially Colored Noise Fields[J]. Journal of Electronics & Information Technology, 2007, 29(12): 2822-2826. doi: 10.3724/SP.J.1146.2006.00535
Citation: Lin Jing-ran, Peng Qi-cong, Shao Huai-zong, Ju Tai-liang. Robust Adaptive Beamforming In Spatially Colored Noise Fields[J]. Journal of Electronics & Information Technology, 2007, 29(12): 2822-2826. doi: 10.3724/SP.J.1146.2006.00535

Robust Adaptive Beamforming In Spatially Colored Noise Fields

doi: 10.3724/SP.J.1146.2006.00535
  • Received Date: 2006-04-21
  • Rev Recd Date: 2006-09-26
  • Publish Date: 2007-12-19
  • A novel robust adaptive beamforming based on diagonal loading is proposed in this paper, aiming at robustness against steering vector mismatches in spatially colored noise fields. The received data is prewhitened first according to the noise covariance, with a corresponding ellipsoidal steering vector uncertainty set defined at the same time. Then the loading level is determined based on worst-case performance optimization. Other than searching for the optimal loading by iteration, a simple closed-form solution is suggested after some approximations. Besides its low computational cost, the closed-form solution reveals how different factors affect the optimal loading. Numerical examples confirm the excellent performance of the proposed approach as well as the accurate approximation of the closed-form solution to the actual optimal loading.
  • loading
  • Van Trees H L. Detection, Estimation and Modulation Theory, Part IV, Optimum Array Processing [M]. New York: Wiley, 2002, Chap.8-9, 917-1285.[2]Gershman A B. Robust adaptive beamforming: an overview of recent trends and advances in the field [C]. in Proc. Int. Conf. Antenna Theory and Techniques, Sevastopol, 2003: 30-35.[3]Vorobyov S A, Gershman A B, and Luo Z Q. Robust adaptive beamforming using worst-case performance optimization: a solution to the signal mismatch problem [J].IEEE Trans. on Signal Processing.2003, 51(2):313-324[4]Lorenz R G and Boyd S P. Robust minimum variance beamforming [J].IEEE Trans. on Signal Processing.2005, 53(5):1684-1696[5]Li J, Stoica P, and Whang Z S. On robust Capon beamforming and diagonal loading [J].IEEE Trans. on Signal Processing.2003, 51(7):1702-1715[6]Vincent F and Besson O. Steering vector errors and diagonal loading [J].IEE Proc. -Radar Sonar Navig.2004, 151(6):337-343[7]Besson O and Vincent F. Performance analysis of beamformers using generalized loading of covariance matrix in the presence of random steering vector errors [J].IEEE Trans. on Signal Processing.2005, 53(2):452-459[8]吴云韬,廖桂生,陈建峰.一种色噪声环境下的DOA估计新算法. 电子学报,2001,29(12): 1605-1607. Wu Y T, Liao G S, and Chen J F. A novel method for estimating DOA in the presence of unknown colored noise fields [J]. Acta Electroinca Sinica, 2001, 29(12): 1605-1607.[9]Sinath H and Reddy V U. Analysis of MUSIC algorithm with sensor gain and phase perturbations [J].Signal Processing.1991, 23(3):245-256
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3422) PDF downloads(1091) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return