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Calculate the periodogram

说明：  Matlab demonstration script for DSB-AM modulation.

说明：  包络谱的求取程序，已经过matlab运行，没有问题。(envelope,in matlab code)

matlab应用接口编程设计基础，术语应用的扩展(matlab application interface programming design based on the term application extension)

算屈服点，延性系数 采用matlab编写的 通用屈服弯矩法(matlab )

独立向量分析（IVA）是对独立成分分析（ICA）算法的一种扩展，将ICA中的单变量成分扩展为多维变量成分，可有效避免卷积盲源分离过程中的排序模糊性问题。(Independent vector analysis (IVA), a multivariate extension of independent component analysis, tackles the convolutedly mixed blind source separation (BSS) problem in a way to avoid the permutation problem by employing a multivariate source prior of the short-time Fourier transform (STFT) components. )

fiminunc、GA、PSO三种算法优化PID参数(fiminunc, GA, PSO three algorithms to optimize PID parameters)

matlab code for code division multiple access rayleigh fading

宏观经济增长所需的代码，包括经济增长与经济波动，详实全面，好用好(The code needed for macroeconomic growth, including economic growth and economic fluctuations, detailing a comprehensive, easy to use good)

说明：  通信信号相干调制解调源码 Fc=10 ％载频 Fs=40 ％系统采样频率 Fd=1 ％码速率 N=Fs/Fd df=10 numSymb=25 ％进行仿真的信息代码个数 M=2 ％进制数(Coherent modulation and demodulation of communication signal source Fc = 10 carrier frequency Fs = 40 systematic sampling frequency Fd = 1 code rate N = Fs/Fd df = 10 numSymb = 25 of the information code to simulate the number of M = 2 hexadecimal number)