Wavelet

逼近法计算变形的第一类整数阶贝赛尔函数值(Approximation method to calculate the deformation of the first category of integer-order Bessel function values)

this file is usefull for fine alignement of 2 set of data

共轭梯度法，优化算法的一种，具有二次收敛性，若目标函数为二次正定函数，经有限步可达到极小点(Conjugate gradient method, an algorithm with quadratic convergence, if the objective function is quadratic positive definite function can be achieved by the finite step minima)

实现哈弗曼压缩编码的matlab程序。（m文件）(Huffman code)

说明：  将watson的DCT视觉模型计算出来，能够得到每个8*8块的系数的JND值( calculate watson s vision model,we can get the JND of every 8*8 s coefficients.)

impyramis explanation

Matlab 多小波变换SPHIT编码的图像压缩技术(Matlab based multiwavelet transform SPHIT coding image conpress)

说明：  粒子群算法，很有用的一个设计程序，如果需要优化，可以使用(Particle Swarm Optimization )

小波包分析提取振动信号中的特征频率，语音信号的采集与处理，数字信号处理课设，实现了对10个数字音的识别。( Wavelet packet analysis to extract vibration signal characteristic frequency, Acquisition and Processing of the speech signal, digital signal processing class-based, To achieve the recognition of 10 digital sound.)

用粒子滤波产生各种分布的随机数，包括指数分布、高斯分布、二项分布，用MATLAB实现的(Particle filter with a variety of random number generation, including the exponential distribution, Gaussian distribution, binomial distribution, with a MATLAB implementation)