John-Wiley-a-Sons---Signal-and-Systems---Simon-Ha

本文论述并设计实现了一个脱机自由手写体数字识别系统。文中首先对待识别数字的预处理进行了介绍，包括二值化、平滑滤波、规范化、细化等图像处理方法；其次，探讨了如何提取数字字符的结构特征和笔划特征，并详细地描述了知识库的构造方法；最后采用了以知识库为基础的模板匹配识别方法,并以MATLAB作为编程工具实现了具有友好的图形用户界面的自由手写体数字识别系统。实验结果表明，本方法具有较高的识别率，并具有较好的抗噪性能。(In this paper, and design implementation of a freely Offline handwritten numeral recognition system. First, identify the figure of the pre-processing treatment were introduced, including binarization, smoothing filtering, standardization, refinement, such as image processing method Secondly, to explore how to extract the structural features of characters and stroke characteristics, and described in detail Knowledge of the construction method Finally the use of a Knowledge-based template matching to identify methods and MATLAB as a programming tool to achieve with a friendly graphical user interface of freely handwritten numeral recognition system. The experimental results show that this method has higher recognition rate, and has better anti-noise performance.)

PSK QPSK modulaltions

典型的分形程序，实现Sierpinski地毯，雪花，倒三角，dragon等等(A typical fractal procedures to achieve Sierpinski carpet, snow, inverted triangle, dragon, etc.)

说明：  这是一个地震波正演的程序，采用雷克子波，可以画出地震的变面积图(use ricker wavelet to do the forward of the seismic)

armax code gives gud results

fdtd 3d simulation in matlab

The MATLAB code which encrypt data based on AES technique.

PWM generation for switches

遗传算法-计算机优化-流量容量匹配算法-交通流量容量调配(Communications network link capacity and traffic optimization genetic algorithm)

提供了34个无约束优化算法的测试函数，用于测试算法的有效性和准确性(Provides 34 unconstrained optimization test functions for testing the validity and accuracy of the algorithm)