预报误差法参数辨识-松弛的思想，LCMV优化设计阵列处理信号，利用自然梯度算法，能量熵的计算，Matlab实现界面友好，重要参数的提取。- Prediction Error Method for Parameter Identification- the idea of relaxation, LCMV optimization design array signal processing, Use of natural gradient algorithm, Energy entropy calculation, Matlab to achieve user-friendly, Extract important parameters.