IRR-digital-high-pass-filter

说明：  自己编写的改进人口迁移算法求解函数最优值，已实现(I have written to improve the migration algorithm optimal value function has been to achieve)

智能优化算法，其中为人工免疫算法，可以为初学者提供帮助。(Intelligent optimization algorithms)

程序的主要功能是做了一定范围的信噪比下，对每个信噪比：随机信号QPSK调制； 根据Alamouti方案的矩阵进行编码；发送信号经过瑞利信道和加入高斯白噪声； 接收信号采用最大比合并的方法；最后对合并信号进行最大似然判决并求误符号率。 结果表明10^-3对应大约12->13dB(Procedure main function is to do a certain range of SNR for each signal to noise ratio: random signal QPSK modulation program in accordance with Alamouti coding matrix send signals through Rayleigh channel and adding Gaussian white noise received signal using maximal-ratio combining method Finally the combined signal and the maximum likelihood decision for symbol error rate. The results showed that about 10 ^-3 corresponds to 12-> 13dB)

说明：  四轮驱动电动汽车动力学理论与控制研究，电控方面很好的论文(Theory of four-wheel drive electric vehicle dynamics and control)

说明：  Any change to the value of Mresults in immediate and phase-continuous changes in the output frequency

Finite difference Methods

this file is for game with matlab code

Matlab simulink中S函数的写法,效果不错，可以仿真。(Written in Matlab simulink S function, good results can be simulated.)

说明：  生成BA无标度网络，并统计网络的度分布（网络中新家入的节点会优先选择网络节点度较大的节点链接）。(The BA scale-free network is generated and the degree distribution of the network is counted (the new home nodes in the network will preferentially choose the node links with higher degree of network nodes).)

this code is matlab code that generate fractal shapes.