bilinear_toolbox_v01

本程序是基于MATLAB图像查看像素值的算法，用户可以查看图像中任一点的像素值(This procedure is based on MATLAB image to view the pixel values ​ ​ of the algorithm, the user can view images of any pixel value)

图像均值滤波器和中值滤波器，并求出PNSR，即信噪比(figure operator)

this file content simple example about modulation bit stream.the type of modulation is (FSK,PSK and ask) after modulation data send and received after that show the relationship between signal to noise ratio (snr) and the bit error rate (ber).....

matlab,davenport风速谱，4阶线性滤波法，绝对可以用！(Matlab, Davenport wind speed spectrum, the 4 order linear filter method, the absolute can be used! Can not use, you cut me!)

This is a generic code for finding FFT of variable string size without using built-in MATLAB function.

小波变换（wavelet transform，WT）是一种新的变换分析方法，它继承和发展了短时傅立叶变换局部化的思想，同时又克服了窗口大小不随频率变化等缺点，能够提供一个随频率改变的“时间-频率”窗口，是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征，能对时间（空间）频率的局部化分析，通过伸缩平移运算对信号（函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节，解决了Fourier变换的困难问题，成为继Fourier变换以来在科学方法上的重大突破。(wavelet transform)

说明：  bp神经网络实现预测，已经在鸢尾花数据集中验证过，拟合能力不错(Prediction of BP neural network)

詳盡的Matlab教學參考資料, 適合Matleb初學者使用.(Matlab detailed teaching reference, suitable for beginners to use Matleb.)

实现傅里叶变换高通、低通滤波，理想滤波，各种滤波因子。(Fourier transform to achieve high-pass, low-pass filtering, ideal filtering, filter factor.)

一个简单的仿真程序，仿真光学衍射现象，带光学系统参数(A simple simulation, emulation optical diffraction phenomenon, with optical system parameters)