AnNumerique

自己写的信噪比计算工具snr2.m snr2(s2ana,fs,f0,fl,fh,bl,bh) s2ana: 待分析信号 fs:采样频率 f0:信号频率 [fl,fh]:信号能量分散带(Their signal to noise ratio calculation tool written in snr2.m snr2 (s2ana, fs, f0, fl, fh, bl, bh) s2ana: to be analyzed signal fs: sampling frequency f0: signal frequency [fl, fh]: the signal with energy dispersive)

cross validation with neurel network methods

说明：  运用遗传算法对BP神经网络输入自变量进行降维(Dimension Reduction of Input Independent Variables of BP Neural Network Using Genetic Algorithms)

说明：  上传的是刘金琨著的《滑模变结构控制MATLAB仿真》中所有例子的源程序,非常适合滑模控制的学习。(This is the source of all examples in the book:MATLAB Simulation of Simulation od Sliding mode Controll,which was written by Liu Jinkun .)

bp_innerloop.m Inner loop of the backpropagtion learning algorithm. One hidden layer. Uses tanh as the transfer function. Uses the following global variables for input and/or output: Inputs1 - input patterns Desired - desired output patterns LearnRate - learning rate parameter Momentum - momentum parameter DerivIncr - increment to the derivative of the transfer function (Fahlman s trick typical value 0.2) Weights1 - first weight layer (updated by this routine) Weights2 - second weight layer (updated by this routine) deltaW1 - initialize to 0 before first call deltaW2 - initialize to 0 before first call TSS - total sum-squared error (set by this routine) Recurrent state

This is a Hybrid PSO GSA Aigorithm.A new hybrid population-based algorithm (PSOGSA) is proposed with the combination of Particle Swarm Optimization (PSO) and Gravitational Search Algorithm (GSA). The main idea is to integrate the ability of exploitation in PSO with the ability of exploration in GSA to synthesize both algorithms’ strength. Some benchmark test functions are used to compare the hybrid algorithm with both the standard PSO and GSA algorithms in evolving best solution.

使用matlab编程环境实现同态信号的滤波处理，同态滤波算法(Matlab programming environment used to achieve the filtering Homomorphic signal processing, homomorphic filtering algorithm)

说明：  数字信号处理中的一些matlab源程序。(digital signal processing some of the Matlab source.)

A MATLAB textbook. A good eBook for MATLAB user

说明：  提出了一种新的基于离散小波变换(DWT)与奇异值分解(SVD)相结合的数字图像水印算法。该算法将原始图像作小波分解并将小波分解得到的低频子带进行分块，对每一块进行奇异值分解后，选取每块中最大的奇异值通过量化的方法嵌入经过Arnold置乱后水印信息。(A new wavelet transform based on discrete (DWT) and Singular Value Decomposition (SVD) combination of digital image watermarking algorithm. The algorithm for wavelet decomposition of the original image and wavelet decomposition low-frequency sub-band are divided into blocks, each a singular value decomposition, the selection of each block by the largest singular value methods to quantify Arnold scrambled after embedding the watermark .)