通过虚拟阵元进行DOA估计，对信号进行频谱分析及滤波，是国外的成品模型，从先验概率中采样，计算权重，在matlab R2009b调试通过，使用拉亚普诺夫指数的公式。- Conducted through virtual array DOA estimation, The signal spectral analysis and filtering, Foreign model is finished, Sampling a priori probability, calculate the w