yichuansuanfa_matlab

采用多孔算法，进行2维2进小波变换和反变换。用于图像的处理(Using porous algorithm for 2-D 2 into the wavelet transform and inverse transform. For image processing)

Monte-Carlo simulation for Critical Path Method, implemented in MATLAB. Uses criticalpath.m library, available for download as well. Function: calculate project length and standard deviation.

改程序包里包含中值、均值滤波、自适应中值滤波和一种改进的椒盐噪声滤波程序，前三种是给第四种作对比的，第四种方法对椒盐滤除效果很好。(Change the program package contains the value, mean filtering, adaptive median filter and an improved impulse noise filtering program is the first three compare to the fourth, the fourth method works well for removing salt and pepper.)

本人在读博士，在科研中应用此matlab程序进行球面插值，在地学中具有重要应用。(Gridding of spherical data using a Green s function for splines in tension)

BP神经网络：是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hide layer)和输出层(output layer)。(BP neural network: a Press the front back propagation algorithm to train multilayer feedforward network is one of the most widely used neural network model. BP network can learn and store large amounts of input- output mode mappings without prior reveal mathematical equations that describe this map. It' s learning rule is to use the steepest descent method, through a reverse spread to constantly adjust the network weights and thresholds, so that the minimum squared error of the network. BP neural network topology, including the input layer (input), hidden layer (hide layer) and output layer (output layer).)

Data Acquisition数据获取代码，主要从麦克风获取语音信号，然后real time plot输入信号的时域和频域波形图(Data Acquisition Data acquisition code, mainly for voice signal from the microphone, and then real time plot of the input signal in time domain and frequency domain waveform)

这是中国数学建模中编程交流上搜索算法内容，里面提供了很多搜索算法的例子(This is the exchange of mathematical modeling in the programming content on the search algorithm, which provides many examples of search algorithms)

将信号进行ASK调制 并进行相干和非相干解调 比较误码率(ASK modulation of the signal and the comparison of coherent and incoherent demodulation BER)

支持向量机的多分类问题，主要是将其分成了5类(Support Vector Machine)

该程序提供了核熵成分分析的matlab实现，可应用于机器学习(Kernel Entropy Component Analysis)