attachments

a function that calculate the laplacian transform of an given image

To test qr Bar code only

使用matlab自己编写的pca+lda方法，大家一起分享(pca and lda in matlab by myself,we will share together)

说明：  这是实际加噪后的地震信号，可以直接采用用于实验的分析和处理(This is the actual noise after the seismic signal, can be used directly)

利用该程序，只要把已知低通滤波器的系数输入，就可画多小波的尺度函数的图象。(Use of the procedure, known as long as the low-pass filter coefficients input, can draw Multiwavelet image scaling function.)

this program is for frquency shift keying

MATLAB对拓扑结构的优化，是网络优化的基础(MATLAB of topology optimization, is the basis for network optimization)

Mersenne Twister随机数发生器（Mersenne Twister generator,MTG for short）是Makoto Matsumoto于1998年对TGFSRG(旋转广义反馈移位寄存器发生器)的更进一步改进。(Mersenne Twister random number generator (Mersenne Twister generator, MTG for short) is Makoto Matsumoto in 1998 TGFSRG (rotation generalized feedback shift register generator) is further improved.)

卫星链路的计算，包括上下性链路噪声，互调噪声，可计算误码率(The calculation of satellite links, including links from top to bottom of noise, intermodulation noise, Computable error rate)

介绍基于DWT变换的数字水印的电子文档，并付matlab开发的源码(Introduction Based on DWT transform digital watermarking of electronic documents, and pay a matlab source development)