fftphase

元胞自动机为使人员疏散离散模型更好描述行人微观特性，提出一种改进元胞自动机的人员疏散模型。(In order to make the discrete model of evacuation better describe the micro-characteristics of pedestrians, a new evacuation model based on improved cellular automata is proposed.)

层次聚类linkage的源码，简介源码容易解读，简单有效，秩序要修改ReadTxt.m文件中load函数的传入参数，即可运行。(Hierarchical clustering linkage source code, source code easier to read, simple and effective, order to modify ReadTxt. M file incoming parameters of the load function, can run.)

matlab 贝叶斯推断优化最小二乘支持向量机参数的实例，速度更快(matlab Bayesian least squares support vector machine parameter optimization instance, faster)

说明：  程序1：遗传算法和非线性规划函数的优化； 程序2：基于遗传算法的BP神经网络优化； 程序3：基于遗传算法的TSP算法； 程序4：基于遗传算法的LQR控制器优化设计 程序5：基于遗传算法的函数优化(Program 1: genetic algorithms and nonlinear programming function optimization Program 2: Based on the genetic algorithm BP neural network optimization Program 3: TSP algorithm based on genetic algorithm Program 4: LQR controller based on genetic algorithm optimization procedures 5: Function Optimization Based on Genetic Algorithm)

杜克大学Steve Cummer(左)和David Schurig(右)，利用COMSOL做的二维隐身

该编码可以成功的实现dpsk的编码，可以成功为其他的程序所调用。(The coding can achieve the success of DPSK encoding, you can successfully call other procedures.)

射线追踪,包含了起点和终点的射线函数，对于地震传播研究具有重要意义！(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions vectorize (e.g. are most efficient) for shot-gather geometry. Only traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth. The bottom of the model is assumed at infinite depth. Thus v=5000 and z=0 specifies a cons)

input: fun x(t) t min & t max a df T = t_max-t_min fs = a*1/T 输入1：方程，xt；输入2，3：信号起始时间；输入4：选取的采样周期是信号长度倒数的倍数， 默认为50；输入5：频域分辨率，默认为0.3 输出频域信号和频域范围 为了提高fft的速度，频域信号长度是2的次方( Input: fun x (t) t min & t max a df T = t_max-t_min fs = a* 1/T Input 1: Equation XT input 2,3: signal start time input 4: select the sampling period is the reciprocal multiples of the signal length, default is 50 input 5: frequency domain resolution, default is 0.3 of the output frequency domain signal and the frequency domain in order to improve the speed of the FFT, the frequency domain signal length is a power of 2)

This is a project in communication domain. It uses the greedy and RCA algorithm to improve the throughput. It uses window ofdm technique . In transmitter side i used IFFT and in receiver side FFT is used. It uses single user channel .

matlab语言编写的一些模糊控制小程序，比较简单易学。(matlab language small number of fuzzy control procedures, is relatively simple to learn.)