中文说明： 有均匀线阵的CRB曲线，做视觉测量的上位机代码,高斯白噪声的生成程序，用平面波展开法计算二维声子晶体带隙,BP神经网络的整个训练过程,正确率可以达到98％。
English Description：
CRB curve of uniform linear arrays, Visual measurement of computer code, Gaussian white noise generator, using the plane wave expansion method for calculation of band gap of two-dimensional phononic crystals and BP neural network for the entire training process, the correct rate can reach 98%.