神经网络传递函数sigmoid函数及其导数的fpga实现

Root-mean-square error and mean-square signal-to-noise ratio F(x,y) the original image , F’(x,y) the decompressed image , the original image change to JPG and then JPG change to Im. Observe to Error- ratio.

单频网的链路级Matlab仿真程序,直接运行可得到误符号率。(Link level simulator for single carrier networks,The simulator outputs symbol error rate.)

MATLAB实现的OKumura-HATA仿真(MATLAB realization of simulation OKumura-HATA)

广义预测控制源程序(单输入单输出)，包含两种情况，对象模型已知和对象模型未知(Generalized Predictive Control source (single-input single-output), including both cases, object model and object model known to the unknown)

分形的练习一 ①Koch曲线 用复数的方法来迭代Koch曲线 clear i 防止i被重新赋值 A=[0 1] 初始A是连接（0，0）与（1，0）的线段 t=exp(i*pi/3) n=2 n是迭代次数 for j=0:n A=A/3 a=ones(1,2*4^j) A=[A (t*A+a/3) (A/t+(1/2+sqrt(3)/6*i)*a) A+2/3*a] end plot(real(A),imag(A)) axis([0 1 -0.1 0.8]) ②Sierpinski三角形 A=[0 1 0.5 0 0 1] 初始化A n=3 迭代次数 for i=1:n A=A/2 b=zeros(1,3^i) c=ones(1,3^i)/2 A=[A A+[c b] A+[c/2 c]] end for i=1:3^n patch(A(1,3*i-2:3*i),A(2,3*i-2:3*i), b ) patch填充函数 end (Fractal Exercise One The ① Koch curve Plural iteration Koch curve clear i to prevent i is reassigned A = [0 1] initial A is a connection (0,0) and (1,0) of the segments t = exp (i* pi/3) n = 2 n is the number of iterations for j = 0: n A = A/3 a = ones (1,2* 4 ^ j) A = [A (t* A+ a/3) (A/t+ (1/2+ sqrt (3)/6* i)* a) A+2/3* a] end plot (real (A), imag (A)) axis ([0 1-0.1 0.8])   ② Sierpinski triangle A = [0 1 0.5 0 0 1] initialized A n = 3 the number of iterations. for i = 1: n A = A/2 b = zeros (1,3 ^ i) c = ones (1,3 ^ i)/2 A = [A A+ [c b] A+ [c/2 c]] end for i = 1:3 ^ n patch (A (1,3* i-2: 3* i), A (2,3* i-2: 3* i), b ) patch filled function end)

说明：  决策树cart，用matlab编写的，数据挖掘算法。(Decision tree cart, prepared using matlab, data mining algorithms.)

ultrasound imaging. this document has the details of ultrasound imaging system with matlab directions of simulation

matlab实现的qpsk调制过程，很详细，包括调制解调、自动频率控制和误码率分析等过程(matlab implementation qpsk modulation process, very detailed, including the modulation and demodulation, automatic frequency control, and error rate analysis process )

2兆瓦异步双馈风力发电系统的建模与仿真，包含个子模块。pitch信号自己添加。。(2 MW doubly fed induction wind power system modeling and simulation, including the sub-modules. pitch signal to add their own. .)

a PID controller in matlab