clustering_coefficients

说明：  这个程序用于语音段的过零率求取，基于matlab，可以用来做端点检测。(The program segment for voice strike zero rate, based on matlab, can be used for endpoint detection.)

在MIMO2*2的无线信道环境下，运用OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，发送信号，经过奇异值分解预编码，调制，在接收端解调，均衡，最终等到估计信号，并计算了整个系统的误码率；(In the wireless channel environment MIMO2* 2, the use of OFDM (Orthogonal Frequency Division Multiplexing) that is an orthogonal frequency division multiplexing, transmission signal, through a singular value decomposition of the pre-encoding, modulation, demodulation at the receiver, equalization, until the final estimated signal, and calculate the error rate of the whole system )

利用了matlab对相场法算枝晶，可以看到图像(Matlab using the phase-field method for the calculation of dendrites, you can see the image)

main function for retinal image viewer

power aperture in matlab

最近学习OFDM用到的程序，仿真了DVB-T系统在2K模式下形成OFDM信号的过程(OFDM used recently to study the procedures, simulation of the DVB-T system in the 2K mode OFDM signal formation process)

part 4 schrodinger solve...

D—S证据理论下的频谱感知，比较基础。适合初学者学习研究，并进行改进。(D-S evidence theory the spectrum of perception, regardless of the basis. For beginners learning research, and make improvements.)

本程序利用奇异值分解对3通道彩色图像进行压缩分解，具体步骤如下： 压缩过程： 1. 选取子图像大小K值，把图像分解成M×M个子图像，IMG(s),s=1,2,…, M2，其中M=N/K，原始图像IMG大小为N×N。 2. 计算这M2个子图像的平均值average，对每幅子图像减去均值图像得到新图像。 3. 计算相关矩阵R，其元素定义为 。 4. 计算R的特征值与特征向量，计算每幅子图像与最大特征向量的内积，便得到编码，即压缩后的图像。 (This procedure using singular value decomposition of 3-channel color image compression decomposition, concrete steps are as follows: compression process: 1. Select the sub-image size K value, the image is decomposed into M × M sub-image, IMG (s), s = 1, 2, ..., M2, in which M = N/K, the original image IMG size N × N. 2. M2 calculate the average of sub-image average, for each sub-image minus the new images mean images. 3. Calculation of correlation matrix R, defined as its elements. 4. Calculation of the characteristics of R value and eigenvector calculated each sub-image with the largest eigenvector of the inner product, they will have to code, that is, the compressed images.)

用于对一组具有相似数据 的聚类，并且可视化。(SOM)