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状态反馈matlab仿真程序，注释详细，包括pid控制(Matlab simulation program state feedback, comments, details, including the pid control)

小波去噪，分程3种，第一对信号进行强制消噪处理并图示结果；第二用默认阈值对信号进行消噪处理并图示结果；第三用给定的软阈值进行消噪处理。以及运行图。(Denoising , sub-way three kinds , the first pair of signal processing and noise cancellation forced the results shown second by default thresholds for signal processing and illustrates the results of de-noising third with a given soft threshold de-noising deal with . And a diagram.)

用于接收机的载波同步，利用锁相环实现解调，用于相干解调(Carrier for receiver synchronization, phase-locked loop to achieve demodulation for coherent demodulation)

此时例是关于用matlab实现牛顿法求解非线性方程组，（包含牛顿法、改进的牛顿法.梯度法、最速下降法代码），里面附带可以直接运行的程序。(At this case is about solving nonlinear equations using matlab Newton, (including Newton, Newton method to improve the code), which comes with the program can be run directly.)

Moving average filter in matlab

在matlab中用程序语言实现qpsk的仿真与模拟，简单易懂，适合初学者参考。(Matlab programming language used in the simulation and realize QPSK simulation, easy to understand, is suitable for beginners reference. )

说明：  若非奇异矩阵A能够分解为一个正交矩阵Q与非奇异上三角矩阵R的乘积，即： A=QR。则称其为A的QR分解。 实现QR分解的方法有很多种，包括Givens变换法，Householder变换法，Schemit正交化法。具体原理可以参考《矩阵论》（程云鹏，西工大出版）教材，这里仅给出三种实现QR分解的程序。(If nonsingular matrix A can be decomposed into a product of orthogonal matrix Q and nonsingular upper triangular matrix R, that is: A=QR. It is called QR decomposition of A. There are many methods to realize QR decomposition, including givens transformation, householder transformation, and scheme orthogonalization. The specific principle can refer to the teaching materials of matrix theory (Cheng Yunpeng, published by Xigong University). Here, only three kinds of QR decomposition procedures are given.)

DOA MUSIC 算法。调试好的，保证能运行。王永良 空间谱估计理论与算法 第110页的仿真程序。(DOA MUSIC algorithm )

this program used to estimat a distribution alpha stable

说明：  该代码用遗传算法来优化多函数极值问题，可以很方便的解决非线性方程的极值(The code using a genetic algorithm to optimize multi-function extremum problem can easily solve nonlinear equations extremum)