hamming

FDWT (forward discrete wavelet transform) use 5/3 filter and 9/7 filter matlab file

Draw a circle in a matrix using the integer midpoint circle algorithm. Code does not miss or repeat pixels.

floating point complex mult and approximation for fraction 1/3

箱线图，或称盒须图，用5个点即可以对给定数据集做出简单总结，这5个点从包括最大值、上四分位数、中位数、下四分位数、最小值。(boxplot.m, used to draw the box plot for a given data set，can make a brief summary by just five nodes, including the maximum value, the upper quartile, the median, lower quartile, and the minimum.)

实现了图像的加水印，去噪，加噪声等功能，BP神经网络用于函数拟合与模式识别，LDPC码的完整的编译码。( Realize image watermarking, de-noising, plus noise and other functions, BP neural network function fitting and pattern recognition, Complete codec LDPC code.)

说明：  2008国际大学生数学建模一等奖论文，数学建模实例与编程教程，提供建模的方法(First Prize Paper on Mathematical Modeling for International College Students 2008, Mathematical Modeling Example and Programming Course, Providing Modeling Method)

对瑞利衰落信道的仿真基于Clarke模型，产生一个瑞利随机过程(A Rayleigh fading simulator based on Clarke s Model Creates a Rayleigh random process with PSD determined by the vehicle s speed.)

说明：  matlab神经元网络的几个代码,动量下降法算法训练BP网络等(matlab neural network of a few code, momentum descent method algorithm training BP networks)

fft的matlab编程实现，能够进行2的整数次幂的点数的fft运算，采用基2算法(fft in matlab programming, can be integral power of 2 points in the fft computation algorithm using radix-2)

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