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说明：  QPSK调制的matlab仿真函数。 虽然短小，但是实用。(QPSK modulation matlab simulation function. Although short, but practical.)

数字图像隐藏技术的仿真，针对一个图片现将其转换为灰白图像，然后将要隐藏的图片加入样本中，加入椒盐噪声攻击，最后将图片还原。(Digital image information hiding technology simulation, for a picture now converted to gray image, will then be hidden image is added to the sample, adding salt and pepper noise attack, finally will restore the picture.)

rayleigh_fading used to help new researcher in the field of the telecommunication

次资料为VB和MATLAB混合编程的电子资料，希望对学习这方面知识的网友有帮助！(Meeting information for the VB and MATLAB programming hybrid electronic data, and they hope to study this area of knowledge has helped friends!)

functioning invovled in addintion and removal of noise

algoritm kruskala , be useful to equation and operations on connectivity a net

调用lorentz，生产lorent的吸引子图，即吸引子生成的主程序。(Attractor map production lorent )

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

功能描述：vblast的sic检测算法vblast的sqrd.m检测算法(demodulation for IEEE802.11a)

卫星导航的单点定位程序，设计简单，原理清楚，是学习编程的好资料。(Single point positioning satellite navigation application, simple design, the principle is clear, is good reference to learn programming.)