lianxi

绘制不同情况下的升余弦滚降系统频谱，并画出其各自对应的时域波形(Draw different circumstances raised cosine roll-off system spectrum, and draw their own corresponding time-domain waveform)

这是一个1.5维普的程序，只要导入数据，就可以运行(his is a 1.5 program, as long as the import data, you can run)

说明：  matlab code about image processing

求HHT的模态分解IMF的希尔波特黄变换程序。(the procedure to get the spectrum of imf of HHT)

这是清华大学出版社胡广书著的《现代信号处理》的Matlab源程序 (This is widely Hu Qinghua University Press book with the "modern signal processing," the source Matlab)

算术编码的Matlab实现，用于该编码的各种压缩、加密应用中，参考程序。(Arithmetic Coding program using Matlab.)

程序实现用脉冲响应不变法和双线性变换法设计IIR滤波器，包括低通滤波器和高通滤波器，其中采样点N=1600，采样频率Fs=10000.(The same impulse response and bilinear transform IIR filter design, including low-pass filter and a high pass filter, where sampling points N = 1600, the sampling frequency Fs = 10000.)

这是一个非常经典的matlab程序。运用蚁群算法来解决（TSP）旅行商问题。(This is a very classic matlab program. Using ant colony algorithm to solve (TSP) TSP. )

说明：  基于matlab，计算信号功率谱，调用了高阶谱分析工具箱的函数 bispecd 和 bispeci计算信号的双谱(Calculate signal power spectrum and bispectrum based on matlab)

Two-dimensional Gaussian Q-function.