tongxinyuanli-MATLAB

用互相关原理实现控制系统的频率特性测试仿真，供大家参考。谢谢！！(Using the principle of inter-related control systems achieve the frequency characteristics of the test simulation, for your reference. Thanks! !)

可以实现激光谐振腔的自再现；有利于了解激光腔的原理(Laser resonator can be achieved self-reproduction is conducive to understanding the principle of laser cavity)

说明：  用matlab实现的GSM TCH/EFS系统在高斯信道、瑞利信道下的性能仿真，其中用到了循环编码、卷积码、交织码等信道编码技术(Using matlab to achieve GSM TCH/EFS system in the Gaussian channel, Rayleigh channel the performance of simulation, which uses a loop encoding, convolutional codes, interleaving codes channel coding techniques)

一组用matlab编写的图像处理程序，改改图像文件名就可以用，适合初级图像处理者。(a group using Matlab prepared by the image processing procedures, changed image file name can be used. Image Processing for the initial persons.)

运行matlab平台，烟花寻优算法，自己编的(Operation of MATLAB platform and optimization algorithm for fireworks)

大学数值分析算法，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块，预报误差法参数辨识-松弛的思想。( University of numerical analysis algorithms, PV modules contain, MPPT module, BOOST module, inverter module, Prediction Error Method for Parameter Identification- the idea of relaxation.)

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用小波变换对图像进行JPEG压缩编码,尤其是在低比特率时，可以消除块效应。(wavelet JPEGimage compression )

1、 降噪步骤： （1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。 （2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。 （3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。 matlab里面有关于去噪的函数，你可以找一下~~ 这说的只是基本原理，希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)

simulation with hybrod toolbox in matlab