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说明：  基于matlab GUI的数字滤波器源程序(The digital filter based on source code matlab GUI)

频谱分析的几个小程序，用于 matlab 的频谱分析(Spectral analysis of several small programs Spectrum analysis for matlab )

Matlab applications it is often necessary to create vectors, to delete elements of given vectors, to substitute elements in given vectors, to append vectors or to insert a given vector into another vector. All these methods are discussed in this short tutorial. The corresponding m-files are available.

Linear filters process time-varying input signals to produce output signals, subject to the constraint of linearity. This results systems composed solely of components (or digital algorithms) classified as having a linear response.

Spectral Correlation of Modulated

基于kaiser窗的双谱线插值FFT谐波分析，采用了小波去噪的思想，主要是基于mtlab的程序，包括调制，解调，信噪比计算，均值便宜跟踪的示例，微分方程组数值解方法，一些自适应信号处理的算法。( Dual-line interpolation FFT harmonic analysis kaiser windows, Using wavelet denoising thought, Mainly based on the mtlab procedures, Includes the modulation, demodulation, signal to noise ratio calculation, Example tracking mean cheap, Numerical solution of differential equations method, Some adaptive signal processing algorithms.)

本程序基于Matlab，可以对特定波长光线在透镜系统中进行光线追迹。可以生成任意方向平行光，点光源任意角度光线，并对全反射，光线射出系统等特殊情况用红色标出。透镜数任意，透镜参数可设。(The program is based on Matlab, with a specific wavelength of light in the lens system for ray tracing. Parallel light can be generated in any direction, at any angle point source of light, and the reflection of light injection system and other special circumstances marked in red. Any number of lenses, lens parameters can be set.)

This file is about to plot the actuator matlab.m file

Some algorithms of variable step size LMS adaptive filtering are studied．The VS—LMS algorithm is improved． Another new non-linear function between肛and e(／ t)is established．The theoretic analysis and computer simulation results show that this algorithm converges more quickly than the origina1．Furthermore，better antinoise property is exhibited under Low—SNR environment than the original one．(variable step size of a LMS daptive filtering are studied. The VS-LMS algorithm is improved. Another new non-linear function between anus and e (/ t) is established. The theoretic analysis and computer simulatio n results show that this algorithm converges mo 're quickly than the origina1. Furthermore, better antinoise property is exhibited under L ow- SNR environment than the original one.)

PCNN模型用MATLAB算法实现，未简化版 (PCNN model using MATLAB algorithm, not Starter Edition)