ch3

一个对ADC和PLL输出结果作FFT频谱分析的matlab程序(An ADC and PLL output FFT spectrum analysis for matlab program)

最小二乘法系统辨识，包括系统阶次的辨识等，希望大家喜欢(Least squares system identification, including the identification of system order and so on, hope you like)

本程序为matlab编写的粒子群算法优化十杆件桁架程序源码，通用性比较强，大家可以参考！(The procedure for the preparation of PSO matlab optimization ten pieces of truss program source code, common relatively strong, we can refer!)

关于QPSK星座图的部分程序，本人搜索到的，感觉挺好的，大家可以看看，参考一下。(QPSK constellation diagram on the part of the process, I searched, feeling quite good, we can see that reference.)

说明：  根据经典光学光折射理论，模拟光在界面上的折射，(According to the classical theory of optical light refraction to simulate the refraction of light at the interface,)

一个是产生语音的波形和短时频谱，另一个是产生语谱图。(One is to generate voice waveforms, and short-term spectrum, and the other is to generate spectrogram.)

用遗传算法求一维函数极值，Matlab语言，可用作学习参考！(Genetic algorithm for extreme one-dimensional functions, Matlab language, can be used as a reference. . .)

周期对称方波信号的傅里叶级数展开 有限项级数来逼近无限项级数(fourier series )

关于通信仿真的一些常用程序，均为自己编写！(Simulation of some commonly used on the communication process, both to write your own!)

说明：  排课算法 讲述了排课算法重要算法附有伪代码(course timetable problem)