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对于无线通信中常见的多径效应进行仿真，此次仿真基于两径信道，给出了两径信道的误码率仿真(simulation of the two_path channel)

说明：  这是一个matlab的直方图均衡程序，先读入一副彩色图像，将其转成灰度图，输出该图的直方图，做均衡以后再次输出，可以看到均衡后图像直方图比较均匀了。(this is a histogram program based on matlab)

matlab下褶积的各个程序，简单易懂，实用性强。(all the decon codes in matlab,which is easy to read and suitable for many situations. )

matlab的教程，例题，包括数值，符号，图像等运算及答案(matlab tutorials, sample questions, including the values, symbols, images and other computing and answers)

Mann-Kendall 趋势分析，于进行m-k检验 突变所发生的时间(Mann-Kendall，used for testing mk mutation occurred at a time)

为判断聚类结果质量的好坏，需要一个客观的评价指标来评价聚类结果的合理性。聚类性能评价方法通常分为三种：外部评价法，内部评价法，相对评价法。外部评价法将聚类结果得到类标签和已知类标签进行比较，此评价法的前提是数据集样本的类标签已知(In order to judge the quality of clustering results, good or bad, the need for an objective evaluation to assess the reasonableness of the clustering results. Clustering performance evaluation method is usually divided into three types: external evaluation method, internal evaluation method, relative evaluation method. External evaluation method of clustering results to obtain class labels and the known class labels are compared, the premise of this evaluation method is a class label known sample of the data set)

filter gabor, digunakan di matlab

线性调频信号的波形和其模糊函数，以及其模糊函数的图形。直观表示该信号的模糊函数(Chirp signal waveform and its fuzzy function, as well as its fuzzy function graphics. Visual representation of the signal ambiguity function)

Test Template Class Source Code for Andriod.

protect digital images using secure hash