中文说明：均值便宜跟踪的示例，二维声子晶体FDTD方法计算禁带宽度的例子,用于信号特征提取、信号消噪，各种kalman滤波器的设计，LCMV优化设计阵列处理信号，STM32制作的MP3的全部资料。
English Description：
Track sample mean is cheap, two-dimensional phononic crystal FDTD method calculation examples of band gap width for signal feature extraction, signal denoising, a variety of Kalman filter design, the LCMV optimization design array signal processing, STM32 produced MP3 of all the information.