threerateIEC1

qpsk仿真系统框图，实现四项调制系统仿真实验。(qpsk diagram of simulation system to achieve four modulation system simulation experiments.)

说明：  输入波形信号，就可以输出时频分析的结果输入波形信号，就可以输出时频分析的结果(Input waveform signal, you can output the results of time-frequency analysis of the input waveform signal, you can output the results of time-frequency analysis)

贪婪随机自适应搜索法(GRASP)，使用随机化的最小最小完成时间算法来产生问题的初始解,再通过变邻域下降算法来改进这个解。(Greedy randomized adaptive search method (GRASP), the minimum use of randomized algorithm to generate the minimum completion time of the initial solutions of the problem, and through the variable neighborhood descent algorithm to improve the solution.)

Matlab and simulink code

useful matlab codes for beginners

基于谱减法的语音增强算法，谱相减法及其变形方法总体上运算量较小，容易实时实现，增强效果也较好，是目前最常用的一种方法(Spectral subtraction based speech enhancement algorithm, spectral subtraction method and the deformation of the whole volume of the smaller operations, easy real-time implementation, and enhance the results would be better, is the most commonly used in a way)

MATLAB scripts for loan and payment calculations.

Spectral analysis of discrete deterministic signals

正弦信号的频谱分析，希望可以帮到各位！祝各位学习语愉快！(good morning ！good afternoon ！good evening！good night！)

MATLAB PROGRAM FOR INTEGRATED STATE FEEDBACK AND STATE OBSERVER