通过虚拟阵元进行DOA估计，重要参数的提取，已调制信号计算其普相关密度，可以广泛的应用于数据预测及数据分析,PLS部分最小二乘工具箱,验证可用。- Conducted through virtual array DOA estimation, Extract important parameters, Modulated signals to calculate its density Pu-related, Can be widely used in data analysis and for