ROI_of_Simulink

simulink下使用的关于通讯系统的实例，例如调制解调，看频谱，采样等。(simulink to use on an instance of communication systems, such as modulation and demodulation, see the spectrum, sampling and so on.)

说明：  计算Daubechies小波尺度函数滤波器系数(Function to compute the Daubechies scaling coefficients)

matlab实现样条插值法，方便快捷实现各种拟合(matlab implementation spline interpolation method, to achieve a variety of quick and easy fitting)

Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

说明：  基于PID的BUCK电路的稳压控制的仿真模型，实现PID控制下的稳压。(Based on the simulation model of PID BUCK circuit voltage control, realize the voltage control under PID control.)

大部分都是数学建模的资料,大家要多多支持啊!(are mostly mathematical modeling of information, we have to be generous support ah!)

hystrysis simulink model

Introduction to Robotics by J J Craig

卡尔曼滤波器（kalman filter）的matlab代码(kalman filter matlab code)

实现hufman功能，能将任何输入的文本转化为二进制文件(Achieve hufman function, can enter text into any binary file)