中文说明：相关分析过程的matlab方法，阵列信号处理的高分辨率估计，esprit算法对有干扰的信号频率进行估计,用平面波展开法计算二维声子晶体带隙,仿真效果非常好，从先验概率中采样，计算权重。
English Description：
Relevant analysis process of the MATLAB method, high resolution estimates of array signal processing, ESPRIT algorithm is used to estimate the interference signal frequency, using the plane wave expansion method calculation of two-dimensional phononic crystals bandgap, simulation results is very good, sampled from the prior probability, for computing the weights.