fangchajisuan

一个mimo天线阵列的m文件，有助于加深对mimo天线排布方案的理解，对学习mimo系统有一定的帮助。(A mimo antenna array of m files, enhance the scheme for mimo arrangement, antennas for learning mimo systems have some help.)

非线性信道matlab仿真程序，可以实现色散和非线性效应(nonlinear fiber)

说明：  pca降维 在pca提取vd后可以利用降维进行更加简便的操作(pca pca extraction vd dimension reduction in the dimensionality reduction can be used after a more simple operation)

haffman编码，用matlab实现哈夫曼编码(haffman coding)

matlab用标准遗传算法求f(x)=x2－22x+30函数的最小值，x [0,31]。 包含源码及结果(matlab using standard genetic algorithms f (x) = x2-22x+30 the minimization, x  [0,31]. Includes source code and results)

说明：  主要用于潮流计算，可以设置多平衡节点fgfgfgfg(yhuhgfjhgjhgjhg)

FDTD _ 3D code in matlab main structure of 3D fdtd code

数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。 (Digital modulation is the spectrum shifting to high frequency digital baseband signals, suitable for the formation of bandpass signal transmission in the channel. Digital modulation basic amplitude keying (ASK), frequency shift keying (FSK), the absolute phase shift keying (PSK), relative (differential) phase shift keying (DPSK). At the receiving end can be used to dry the demodulation or non coherent demodulating the digital baseband signal. )

计算多重分形非趋势波动分析matlab程序,完整的基于HMM的语音识别系统，构成不同频率的调制信号。( Calculation multifractal detrended fluctuation analysis matlab program, Complete HMM-based speech recognition system, Constituting the modulated signals of different frequencies.)

说明：  基于麦克风阵列的声源定位，四元十字阵的matlab仿真(Microphone array based sound localization, four-element Array of matlab simulation)