communacation

matlap for the function

这是一个非常好的2G的程序，可以很好实现现代通信，OK(This is a very good 2G program, a good modern communication, OK)

sar图像去噪的几种新的方法，到达过程是的泊松过程，ML法能够很好的估计信号的信噪比。( Several new methods sar image denoising, Arrival process is a Poisson process, ML estimation method can be a good signal to noise ratio.)

针对离散系统的阶跃信号、正弦信号和方波信号，设计离散PID(Step for the discrete-time systems signal, sinusoidal signal and the square wave signal, the design of discrete PID)

 产生长度为1000的标准正太分布的随机信号，画出时域波形及频谱；  采用u=255的非均匀PCM编码，每符号为8bit，画输入-输出关系图；  计算信号量化噪声比（SQNR）；  信道误码率为10-3；  解码，并画出u律反变换后的信号时域波形及频谱。 扩展要求：  采用均匀PCM、量化级数可变、信道误码率可变。 ( have a standard length of 1000 is too random signal distribution, draw time-domain waveform and frequency spectrum  u = 255 using the non-uniform PCM encoding, each symbol for 8bit, drawing input- output relationship diagram  calculated quantization noise signal than (SQNR)  channel bit error rate of 10-3  decoder, and law to draw u the signal after the inverse transform time-domain waveform and frequency spectrum. Expansion of the requirements:  uniform PCM, quantization level variable, a variable channel bit error rate.)

an image quality assessment trial

孤岛检测主动式方法SFS算法的matlab仿真(SFS islanding detection method simulation algorithm)

说明：  图形图像算法源代码集合（matlab）,总共十七章(A collection of graphics algorithm source code (matlab))

说明：  pid Bldc fácil de trabajar y muy bueno

控制数学问题的MATLAB求解，包括：微积分与积分变换问题求解，线性代数、积分方程和差分方程求解(Solution for Control Mathematics Problem )