randomdata

a very good Multi dimensional scaling procedure using Sammon s mapping algorithm.

对数据进行按列分类统计，统计平均值、背景值、方差等(The data by columns classification statistics, statistical average, the background value, variance, etc.)

model maintain the level of water at the pump station

说明：  对二维图像去噪，使用分数阶傅里叶变换算法。(For two-dimensional image denoising, fractional Fourier transform algorithm is used.)

小波包分析提取振动信号中的特征频率，可以动态调节运行环境的参数，sar图像去噪的几种新的方法。( Wavelet packet analysis to extract vibration signal characteristic frequency, Can dynamically adjust the parameters of the operating environment, Several new methods sar image denoising.)

语音信号的干扰去除.对原始信号进行频谱分析，确定干扰的频率；根据干扰的特点采用不同的滤波器对信号进行处理(Remove the interference of speech signals. On the original signal spectrum analysis to determine the frequency interference according to the characteristics of interference filters with different signal processing)

电磁场的时域有限差分法的matlab模拟的程序，计算电磁学的大牛写的程序。(the program writed by famous professor simulates electromagnetic field with FDTD)

计算cvar的各种算法哦，亲。。。 很全很好很棒的(copute cvar)

PID控制程序，matlab编写，适合初学者（2）(PID control procedures, matlab prepared for beginners (2))

4键值频移键控的一个代码示例，可以画出频谱图，可以更改码元长度(4 key frequency shift keying)