数据采集与处理2012，Vol.27Issue(2)：202-209,8.
基于正则化约束最小二乘的稳健频率不变波束形成器设计方法
Robust FIB Design Using Regularized Constrained Least Squares
摘要
Abstract
The frequency invariant beamformer (FIB) has important applications in distortion less acoustic signal acquisition. Conventional FIB design approaches are usually proposed with ideal microphone array models. Since there is no gain and phase mismatch in microphone array characteristic, the performance of conventional FIBs degrade in practical applications. There fore , a robust FIB design approach based on regularized constrained least squares is presented. It can work well in the presence of microphone mismatches. The proposed approach is applica ble to arbitrary array geometries, and it has a closed-form solution, thus avoiding iterative computation and leading to a lower computational complexity in design. Several design exam ples are presented to verify the effectiveness of the proposed approach and the correctness of the theoretical analysis.关键词
波束形成/稳健性/约束最小二乘/正则化Key words
beamforming/ robustness/ constrained least squares/ regularization分类
信息技术与安全科学引用本文复制引用
李静,陈华伟..基于正则化约束最小二乘的稳健频率不变波束形成器设计方法[J].数据采集与处理,2012,27(2):202-209,8.基金项目
国家自然科学基金(61001150)资助项目 （61001150）
江苏省自然科学基金(BK2010495)资助项目. （BK2010495）
