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说明：  simulink工具箱的常见问题分析以及开发过程详解，初学适用(simulink toolbox of common problems and the development of Elaboration on the Course, for beginner)

transport model of ground water with breakdown curve in matlab

EKF的效果需要有test来测验。test中给定了初值来验证EKF的滤波效果(EKF the test results need to test. Test were given to verify the initial value of the filtering effect of the EKF)

2. 设 是窄带信号，定义 是在 区间上均匀分布的随机相位。 是寬带信号，它是一个零均值、方差为1的白噪音信号e(n)激励一个线性滤波器而产生，其差分方程为 。 1） 计算 和 各自的自相关函数，并画出其函数图形。根据此选择合适的延时，以实现谱线增强。 2） 产生一个 序列。选择合适的 值。让 通过谱线增强器。画出输出信号 和误差信号e(n)的波形，并分别与 和 比较。 (Computer Experiments: 1. Consider an AR process x(n) defined by the difference equation where v(n) is an additive white noise of zero mean and variance .The AR parameters and are both real valued: a) Calculate the noise variance such that the AR process x(n) has unit variance .Hence , generate different realization of the process x (n). b) Given the input x (n), an LMS filter of length M = 2 is used to estimate the unknown AR parameters and . The step size is assigned the value 0.05. Compute and plot the ensemble average curve of and by averaging the value of parameters and over an ensemble of 100 different realization of the filter. Calculate the time constant according to the experiment results and compare with the corresponded theoretical value. c) For one realization of the LMS filter, compute the prediction error And the two tap-weight errors and Using power spectral plots of , show that)

经典伪彩图，功率谱，很有意思，也很有用希望对大家有帮助。(typical power spectrum,very intresting,i hope everyone will love it.)

mei氏理论的MATLAB仿真代码，来自于汪利宏生物成像原理那本著作(mei' s theory of MATLAB simulation code, WANG Li-hong from the bio-imaging principle that books)

求复杂网络中的度的介数，输入网络的邻接矩阵，对分析社交网络的拓扑性质很重要(Find the degree of complexity of the network betweenness, enter the network adjacency matrix for analyzing social networks are important topological properties)

翻译结果 这功能主要是OFDM系统传输过程，IFFT和FFT变换，加导频，循环前缀，QAM调整，解调出来 (This function is mainly transmitted OFDM system process, IFFT and FFT transform, pilot, cyclic prefix, QAM adjustment, demodulation)

说明：  学习通信的人都知道，要进行信号处理的话，算法的编程非常繁琐，这里有一些自适应信号处理的算法，LMS,RLS，MMSE等的算法，希望大家喜欢。(learning communications are aware, the need for signal processing, programming algorithm is very complicated, there is some adaptive signal processing algorithms, LMS, RLS, the MMSE algorithm, hope you like them.)

基于文化算法的粒子群优化算法能记忆遍历过的最优值(Culture-based particle swarm optimization algorithm to traverse through the optimal value of the memory)