correlation

This code is used to simulation of bed load transport in two phase flow domain.

PowerX curve fitting polynomial code

在理想信道条件下、在高斯白噪声信道条件下和在先经过瑞利衰落信道再通过AWGN信道条件下的QPSK仿真（基带输入波形及其功率谱、QPSK调制信号及其功率谱、QPSK信号星座图、误码性能等）(In an ideal channel conditions, in white Gaussian noise channel conditions and earlier through Rayleigh fading channels through QPSK simulation AWGN channel conditions (baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, QPSK signal constellation Figure, error performance, etc.))

Extended Mie Scatting Computatian By Matlab Code.密散射数值计算的Matlab代码，(Extended Mie Scatting Computatian By Matlab Code.)

一种基于蚁群算法的图像边缘检测算法，有中文注释。(Image edge detection algorithm based on ant colony algorithm)

土木工程分析结构地震作用的多自由度动力时程分析程序(Dynamic analysis program)

一个关于认知无线电方面的PDF文档，对学习MIMO和认知无线电的人有帮助。(A cognitive radio about the PDF document to the study of MIMO and cognitive radio people have help.)

识别简单表情的BP网络算法，使用Matlab实现，很好用，适合初学者，~(Identification of a simple expression of the BP network algorithm, the realization of the use of Matlab, a good use for beginners, ~)

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)

Matlab数字图像处理源代码，里面有书上的代码，便于读者下载(Matlab Digital image processing source code，There are books code, convenient for readers to download。)