range_compress

低通滤波器，对数据进行平滑，也叫做最小二乘法，Savitzky-Golay算法(a particular type of low-pass filter, well-adapted for data smoothing, and termed variously Savitzky-Golay, least-squares, or DISPO (Digital Smoothing Polynomial) filters. Rather than having their properties defined in the Fourier domain and then translated to the time domain, Savitzky-Golay filters derive directly from a particular formulation of the data smoothing problem in the time domain)

calculate and plot M-PSK for AWGN channel with exact phase

PID controller GUI for understanding the effect of gains

结构分析的有限元与matlab一书中的源代码第五部分，二维线弹性有限元(originnl programs in the book of finite element method in structure analyses and matlab programming part 5)

编程实现基于小波变换尺度相关性去噪算法，结合例子验证该算法的去噪性能(Programming based on wavelet transform denoising algorithm scale correlation, combined with examples of verification of the algorithm de-noising performance)

Matlab decision tree code

余割函数方向图的天线设计，其中给出了设计原理和实物图。(Cosecant pattern of the antenna design, which gives the design principle and the physical map.)

对于圆阵的来波方向假定为90度时的阵列响应的Matlab源程序。(Circular Array for DOA assumed to be 90 degrees when the array response to the Matlab source code.)

low pass filtering to remove noise

能模拟物理光学实验，简单方便，不用去实验室就可以得到想要的结果！(this program simulate the physical optics experiment, simple and convenient, need not go to the lab can get the desired results!)