ndd1

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.)

The function returns constellation points and bit mappings specified in the DVB-S2 Standard

这是有关超解像的程序，使用的是POCS算法，网上有关他的程序很多都缺子程序，这个比较全。(This is the ultra-Jie Xiang procedures, using the POCS algorithm, the Internet many of the procedures of his short subprogram, the more full.)

Matlab Coce for PCA 4

说明：  全程:近地倾斜轨道至地球静止轨道转移方案MATLAB程序包，顾名思义。(As the name implies, the MATLAB program package for the transfer scheme from near-Earth tilt orbit to geostationary orbit.)

应用MATLAB编写的二维时域有限差分程序。是初学FDTD的好帮手。建议初学者参考。(Application of MATLAB to prepare two-dimensional finite difference time domain procedure. FDTD are learning a good helper. Recommended reference for beginners.)

说明：  包括各种图形图像处理的理论原理和软件方面的材料，提供可用现代软件工具实现图像处理的基础。(Including the theoretical principles of graphic image processing and software materials, to provide modern software tools available to achieve the basis for image processing.)

汽车悬架仿真建模，比较好，适合初学者学习(Simulation modeling of vehicle suspension, the better for beginners to learn)

MATLAB,VB做成的神经网络计算程序(MATLAB, VB caused by the neural network program)

pv three phase grid connected system