哈尔滨工程大学学报Issue(5)：527-531,5.DOI:10.3969/j.issn.1006-7043.201305011
声矢量阵自适应抵消稳健波束形成算法
Robust beamforming algorithm with adaptive canceling using an acoustic vector sensor array
摘要
Abstract
The standard adaptive beamformer seriously suffers from performance degradation in the presence of mis-matching errors between the actual and presumed steering. In order to improve the detection ability of the passive sonar,a novel robust adaptive beamforming algorithm combined with adaptive canceling using a vector sensor is proposed. Firstly,the null of each unit was adjusted to the maximum direction of the beamformer by combining the acoustic pressure and particle velocity,and the outputs were regarded as the reference signals of the adaptive cance-ling to suppress the desired signal in the received data;then the eigenvalues in the noise subspace were smoothed by the eigen-decomposition of the covariance matrix;finally,the weight vector of the adaptive beamformer was com-puted using a reconstructed covariance matrix. Both the theoretical analysis and computer simulations show that the new method can efficiently improve the robustness of the adaptive beamforming algorithm based on the acoustic vec-tor sensor array because the reconstructed covariance matrix only consists of coherent interference and noise. The output SINR was satisfactory even in the condition of a large steering vector error or high SNR.关键词
阵列信号处理/自适应波束形成/稳健性/声矢量阵/自适应抵消Key words
array signal process/adaptive beamforming/robustness/acoustic vector sensor array/adaptive cance-ling分类
通用工业技术引用本文复制引用
梁国龙,陶凯,范展..声矢量阵自适应抵消稳健波束形成算法[J].哈尔滨工程大学学报,2014,(5):527-531,5.基金项目
国家自然科学基金资助项目（51279043，61201411，51009042）；水声技术重点实验室基金资助项目（9140C200203110C2003）；黑龙江省普通高等学校青年学术骨干支持计划基金资助项目 （）
