中文摘要：

提出一种水声噪声环境中的自适应波束形成算法。该算法在假设水声信号服从对称α稳定分布（SαS）的前提下,定义零阶阵列响应,根据最小方差无畸变响应波束形成器（MVDR）提出零阶最小方差无畸变响应波束形成器（ZMVDR）。实际水声试验信号数据分析证明了提出的ZMDVR在不需要特征指数α的先验条件下,性能与分数低阶最小方差无畸变响应波束形成器（FrMVDR）相当,并优于MVDR波束形成器。

英文摘要：

A new adaptive beam-forming algorithm for underwater acoustic signals was proposed.Considering underwater acoustic signals obey symmetric α-stable distribution（SαS）,the algorithm defines zero-order array response and develops a zero order minimum variance non-distortion response（ZMVDR） beam-former based on the conventional minimum variance non-distortion response（MVDR） beam-former.Analysis of trial data showed that the ZMVDR beam-former has comparative performance in comparison with the FrMVDR beam-former without the value of α,and superior performance in comparison with the MVDR beam-former.