ham-code

题目：有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？(Title: There are 1,2,3,4 digits, how many can be formed from each other and without duplication of the three-digit numbers? How many are?)

说明：  多种窗函数的FIR滤波器，GUI界面，参数设置，滤波测试，图片显示(FIR filter of window functions, GUI interface, parameters setting，filter test, picture shows )

说明：   这个函数可以产生阶越函数并且可以多次调用产生矩形函数(This function can generate the more function-order and can be multiple calls to generate the rectangular function)

log5pitch : 将Hz为单位的基频转换为五度标记法规定的声调，先传入四个声调的基频，然后输出四个声调的五度值 myExcelWrite : 用matlab向Excel表单中写入内容(log5pitch: the fundamental frequency in Hz is converted to five times the tone mark law, passed in the first four tones of the fundamental frequency, then the output value of four tones of the five degrees myExcelWrite: using matlab to write content to an Excel spreadsheet)

space time frequency coding-alamouti scheme

利用非线性控制完成光伏并网逆变器的设计，设计中采用先进的反步法，介绍很好。(Using nonlinear control to complete the design of the photovoltaic (pv) grid inverter, adopted in the design of advanced reverse moves, the introduction is very good.)

基于蚁群算法的优化实现路径最短的问题程序(Based on ant colony optimization algorithm to achieve the shortest path problem program)

KNN是一种有效的模式识别分类算法，本文件在Matlab平台实现KNN算法在模式识别中的运用。(KNN is an effective pattern recognition classification algorithms, this document is in the Matlab platform implementation KNN algorithm in the application of pattern recognition.)

This code applies local histogram equalization on an input image with a view to improve its contrast ratio. The image is read, converted to grayscale and resized with the inbuilt function of MATLAB. The window size may be changed, however, the window shift is as per size of the window. The output is definitely a better contrast image as compared to the input but checkerboard effect is evident.

此文件是基于ARToolKit的开发包上的再次开发，上面显示一个一个立方体，并加以稳定的程序，对增强现实有很好的指教。(This document is based on the development of ARToolKit developed again on the package, shown above, one by one cube, and the procedures to be stable, for augmented reality have a good advice.)