leach

Blind signal seperation method using maximum likelyhood method

最大指数Lyapunov指数计算方法的程序，比较详细(Maximum index Lyapunov index calculation method of the program, a more detailed)

定义了通信中帧格式，用matlab代码实现了这个过程，可以自定义巴克码的长度，接收端可以采用滑动相关法捕获该帧(The definition of a communication frame format, using matlab code to achieve this process, can customize the length of Barker Code, the receiving end of sliding correlation method can be used to capture the frame)

直接4bit替换法的图像伪装技术以及对第四bit考察的matlab代码，其中需要两幅大小一样的图像(Direct 4bit image replacement method camouflage technologies, as well as inspection of the fourth bit of matlab code, one of two required size images)

通过对心电信号提取，研究其RR间期，来判断病症(Extracted by ECG, RR interval study to determine disease)

linear acceleration

用matlab编制的机器人求逆以及求时间的程序，个人感觉很有应用借鉴价值。(using Matlab based robot inverse time and the procedures for seeking personal feeling good application reference value.)

内容：运用PM算法识别空间目标。程序中附有注释，可改变方向角，运算速度比music算法快，本人毕设程序，绝对可用。(Content: The use of PM space target recognition algorithm. Annotated program, you can change the direction of the angle calculation algorithm is faster than the music, I set up the program, absolutely free.)

M=63 J=(M-1)/2 Wp=0.5*pi Ws=0.6*pi Np=100 Ns=100 weightp=1 weights=100 通带和阻带的加权系数 WpN=linspace(0,Wp,Np) WsN=linspace(Ws,pi-0.05,Ns) Wm=[WpN WsN] p=[ones(1,50),ones(1,50)/2] d=[p,zeros(1,Ns)] W=diag([weightp*ones(1,Np),weights*ones(1,Ns)]) C=cos(Wm*[0:J]) Q=diag(cos(Wm*0.5)) g=(W*Q*C)(W*d) g=g h=(g(J:-1:2)+g(J+1:-1:3))/4 h=[g(J+1)/4 h g(1)*0.5+g(2)/4] h=[h fliplr(h)] W=linspace(0,pi-0.1,512) H=freqz(h,1,W) plot(W/pi,20*log10(abs(H))) (filter design)

discrete wavelet and svd based watermarking with 12 type of attack included