samples

自己编写的模拟退火粒子群算法，里面含有测试函数，比较简单，适合初学者。(I have written simulated annealing particle swarm algorithm, which contains a test function is relatively simple, suitable for beginners.)

该程序为标准粒子群算法源程序，可以在此基础上改变参数，对程序进行优化(The program is the standard particle swarm algorithm source code, you can change the parameters on this basis, the program optimization)

The MATLAB Scripts (m-files) Simulate MIMO Communication System with Zero Forcing (ZF) Detection, Minimum Mean Square Error (MMSE) Precoding and Detection. It of course goes with the MAIN Programs which calls the functions.

对一个调查样本绘制计数的频率分布图.要求输入的样本事先由小到大排好序。(to make a frequency distribution table for a sample)

最小二乘辨识系统模型参数的算法，可以用于辨识离散模型的参数(Least squares algorithm for model parameter identification system can be used to identify the parameters of the discrete model)

POWELL法，优化设计中的经典算法之一。这里给出powell法Matlab源程序(POWELL method to optimize the design of the classic algorithm. Matlab source code is given here。 )

光子晶体带隙结构, 以及有限周期情况下能谱不连续性的情况(Photonic band gap structure, and the case of a limited period photonic crystals energy spectrum of discontinuity . )

对实际降雨信道环境的模拟，根据不同的降雨概率，得到降雨的类型，以及降雨引起的路径损耗值。对于想要仿真实际环境和信道，可以加入降雨这一干扰，作为对性能评估的一个影响因素，其中涉及到的降雨类型及对应的雨衰减率依据国标。(Simulation of the actual channel environment rainfall, depending on the probability of rain, to get the type of precipitation, and the path loss value due to rainfall. For those who want the physical environment and channel emulation, you can add rain this interference as a factor for performance evaluation, which relates to the rainfall patterns and the corresponding rain attenuation rate based on the national standard.)

随机产生信息码求误码率 信息码长度（帧长64bit） 息码速率为10KHz（100us） 发送带宽20KHz（信息码速率的2倍） 发送信号功率2W 载波频率70MHz 采样频率280MHz（发送数据产生采样率） 20KHz方波 0KHz方波 0KHz方波高低电平采样点数 信息码采样点数 ASK调制的调制度ma=1-2/(2+alpha) 根据2ASK调制度确定alpha值(Random generation of information code for error rate 信息码长度（帧长64bit） Message length (64bit) 息码速率为10KHz（100us） The rate of interest rate is 10KHz (100US) 发送带宽20KHz（信息码速率的2倍） Transmission bandwidth 20KHz (2 times the rate of the information code) 发送信号功率2W Transmit signal power 2W 载波频率70MHz Carrier frequency 70MHz 采样频率280MHz（发送数据产生采样率） Sampling frequency 280MHz (transmit data generated sampling rate) 20KHz方波 20KHz Fang Bo 0KHz方波 0KHz Fang Bo 0KHz方波高低电平采样点数 0KHz square wave height sampling points 信息码采样点数 Information code sampling point ASK调制的调制度ma=1-2/(2+alpha) ASK modulation of the modulation system ma=1-2/ (2+alpha) 根据2ASK调制度确定alpha值 Determine the alpha value according to the 2ASK modulation system )

数字信号处理，用matlab来实现对信号的处理，这本书 是基础，手把手的教你(Digital signal processing, using matlab to achieve signal processing, this book is the basis, teach you hands-on)