histeq

The NCT includes 4 External validity indices and 8 internal validity indices, and the sub-routine validity_Index.m is designed to use them. This tool is suitable for the research work such as the performance comparison of different indices on estimation of the number of clusters, algorithm design by improving part codes of this toolbox. i) External validity indices when true class labels are known: Rand index Adjusted Rand index Mirkin index Hubert index ii) Internal validity indices when true class labels are unknown: Silhouette Davies-Bouldin Calinski-Harabasz Krzanowski-Lai Hartigan weighted inter- to intra-cluster ratio Homogeneity Separation iii) Others Error rate (compared with true labels) System Evolution: it is used to estimate the number of clusters and give separable degrees between clusters.

较为详细地介绍了延迟微分方程的概念以及数值解法，并提供具体的计算案例以及在matlab中的实现，并附有一定的源码，适合初学者参考学习()

circular convolution of signals

自己写的关于雷达目标RCS起伏的Swerling模型，包含示例文件，简单却是有用的，各位尽管下载吧。(Write on radar target RCS undulating Swerling model, including sample files, simple but useful, although you download it.)

matlab code for ofdm

本文简述了MATLAB在电子课程中的应用，希望对大家有用。(paper describes the MATLAB courses in the electronic application, it may be useful to hope.)

可以计算波浪载荷，并且还可以进行数值模拟，从而省去更多的实验材料(Can calculate the wave loads, and numerical simulation, thereby eliminating the need for a more experimental material)

this is wonderful source code

用MATLAB实现的SUSAN算子，用于图像的边缘检测(susan detect edge!)

采用matlab设计数字滤波器的源程序，包含滑动滤波器、切比雪夫低通、带通滤波器等！ (Digital filter design using matlab source, including sliding filters, Chebyshev low pass, band pass filter!)