C_C

量子阱光开关的反射谱特性，送给有需要的朋友参考参考。(the reflection of multiple quantum well for switching)

层次模糊聚类的算法实现，一个用C或者C++写的kmeans算法，最新的聚类算法(Level fuzzy clustering algorithm, one using C or C++ written kmeans algorithm, the latest clustering algorithm)

u can calculate DCT clc inp = imread( Im1.jpg ) inp1 = imread( Im2.jpg ) A = double(inp(:,:,1)) B = double(inp1(:,:,1)) A1=double(blkproc(A,[8 8], dct2 )) B1=double(blkproc(B,[8 8], dct2 )) [r,c] = size(A1) r1 = [] for i=1:r for j=1:c if A1(i,j) > B1(i,j) r1(i,j)=A1(i,j) else r1(i,j)=B1(i,j) end end end r1= double(r1(:,:,1)) C=blkproc(r1,[8 8], idct2 ) round(C) C1=idct2(r1) figure imshow(uint8(C)) figure imshow(uint8(C1)) imwrite(uint8(C), dct8x8min.jpg )

说明：  改进防碰撞纯ALOHA的matlab仿真算法(Improved anti-collision algorithm for pure ALOHA the matlab simulation)

模糊C均值方法，将模糊的方法用到K均值方法里面(Fuzzy C Means method, the fuzzy approach method which used the mean K)

frequency synchronization for ofdm

说明：  基于四阶统计最大化的盲源信号分离技术，可实现复数形式的盲源信号分离，观测混合信号需要大于等于源信号个数(Blind source signal separation technology based on four-order statistical maximization can realize the separation of blind source signal in plural form, and the need to observe mixed signal is greater than equal to the number of source signal.)

Double Pendulum simulation and description

各种分布之下的随机数matlab生成代码，共18种分布，比较全面，研究随机数常用代码(Matlab distributed under a variety of random numbers generated code, a total of 18 kinds of distribution, a more comprehensive study used a random number code)

读取信号进行时频分析，wigner时频图和fft频谱图(When reading the signal frequency analysis, time-frequency diagram and fft spectrum wigner)