Correction-of-the-linear-system

This is the simulation of Pulse Wave Doppler(PWD) effect used in ultrasonic wave. I m a student of HY University and I m not good at programming, but I want to be a nice programmer :D

说明：  BP算法是为了解决多层前向神经网络的权系数优化而提出来的；所以，BP算法也通常暗示着神经网络的拓扑结构是一种无反馈的多层前向网络(BP algorithm is to solve the multi-layer feedforward neural network weights optimization and put forward Therefore, BP algorithm usually implies that the topology of neural network is a multi-layer feedback-free network)

求解非线性系统的李雅普诺夫指数的MATLAB程序(Lyapunov index of the nonlinear system of MATLAB)

matlab 时频分析工具箱 matlab 时频分析工具箱time-frequency analysis toolbox(time-frequency analysis toolboxtime-frequency analysis toolboxtime-frequency analysis toolbox)

说明：  调制解调matlab代码包括am,fm,fsk,gfsk,msk,gmsk.很完善的代码。am,fm，中还有语音测试。所有的程序都有代码解释，原理分析，性能对比分析等。希望对大家有用。(Matlab code modulation and demodulation include am, fm, fsk, gfsk, msk, gmsk. A very comprehensive code. am, fm, there are voice tests. All programs have the code interpretation, principle analysis, performance comparison analysis. Hope that useful.)

说明：  数字图象处理,显示图象性质并且将索引图形转化为二值话图象(digital image processing and display images of nature and graphics index values into two words image)

WIND FORECASTING AND CHOOSING OF TIME SEIRES MODEL

说明：  PE是干旱模型中计算相对湿润度的算法，经过测试成功，适合混编！(PE is the drought model to calculate the relative moisture algorithm successfully tested, suitable for mixed!)

该实例程序的作用是奇异值分解，输入预进行奇异值分解的矩阵，便可以直接运行(The sample program is the role of singular value decomposition, the singular value decomposition of the input pre-matrix, we can run)

这是一个基于一维语音信号的自动消噪代码，采用的是启发式阈值(This is a automatic denoising code based on wavelet transform for one-dimensional signal,we use the heuristic threshold )