TDST_0

A simple PSNR calculator that might be handy in measuring the PSNR between two frames in a video. Typically used in measuring the distortion when videos are encoded and decoded.

matlab s函数（s-Function）编写的离散状态空间表达式(matlab s function (s-Function) written in discrete state space representation)

Design of Co-Simulation for Wireless Networked Control System with OPNET and Matlab

读取硬盘SMART值,很详细的源代码。很有参考学习的价值(read hard smart value)

一种高增益的交错boost变换器，增益可以高达10左右，是一种高效率高增益第成本的变换器。(hige_step boost)

program to process steganografi and watermarking

In BPSK modulation, the phase of the RF carrier is shifted 180 degrees in accordance with a digital bit stream. A form of phase modulation in which the modulating function shifts the instantaneous phase of the modulated wave between predetermined discrete values. Abbreviated PSK

matlab官方出品的上手教程，科研必备。(Matlab official production of the first-hand course, scientific research is necessary.)

基于方差约束 ,研究一类不确定线性定常随机离散系统的 H ∞滤波问题。提出了一种 鲁棒滤波的新算法 ,该算法克服构造对角矩阵约束性较强( H ∞filtering problem under the constraint of variance was discussed for a class of linear stochastic uncertain system. A new algorithm of robust filter design was proposed which avoids strict constraint in constructing diagonal matrix to meet upper bound of variance. The robust filter with both constraints of variance and H ∞was given based on linear matrix inequality (LM I) )

ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x 小波图像去噪( ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x )