cheng-xu

This is the file load flow in power system

提出了一种基于小波变换可抗击几何攻击算法。在水印嵌人 部分# 首先对宿主图像进行小波分解 、 嵌人水印, 再通过余弦变换求得该水印图像的一个特征向量, 利用该特征向量和水印 信息通过12 31 函数生成一个二值逻辑系列, 将该序列作为密钥/ 水印提取部分为# 对待测的图像进行小波变换, 再通过余 弦变换求得待测图像的一个特征向量, 利用该特征向量和密钥通过1 2 4 1 函数提取出水印。(Proposed based on wavelet transform algorithm can be against geometric attacks.# Watermark embedded in the first part of the host image wavelet decomposition, embedded watermark, and then through the cosine transform of the watermarked image obtained by a feature vector, using the feature vector and the watermark information through 1231 to generate a binary logic function series, the sequence as the key/watermark extraction part is# treated transform measured image, and then obtained through the cosine transform the image of a feature vector under test, using the feature vector and the key function by 1241 to extract the watermark .)

一篇介绍高速柔性转子动平衡中VC_与MATLAB混合编程的应用的文章，不错(Introduced a high-speed dynamic balancing of flexible rotor VC_ mixed with MATLAB programming applications articles, good)

双音多频 DTMF（ Dual Tone Multi-Frequency ）信号，是用两个特定的单音频率信号的组合来代表数字或功能(DTMF DTMF (Dual Tone Multi-Frequency) signals, use of two specific combinations of tone frequency signals to represent the number or function)

svpwm，三电平，simulink，空间适量脉冲宽度调制(svpwm, three-level, simulink, space right amount of pulse width modulation)

产生升余弦滤波器的时域与频域波形，带有默认参数，滚降系数为alpha。(Time domain and frequency domain waveforms produce raised cosine filter with default parameters, roll-off factor for the Alpha.)

说明：   用matlab仿真的xc = [1 1 1 1 1 1 1 1 1 1] 的fft时序幅频图形(simulation using Matlab xc = [1 1 1 1 1 1 1 1 1 1] fft timing frequency graphics)

rate equation with simulink of matlab

白噪声 –单位冲激信号 –正弦信号 –方波信号 –三角波信号 功率谱(White Noise- unit impulse signal- sinusoidal signal- a square wave signal- triangular wave signal power spectrum)

Hierarchial Centroid the zip consists of implementation of hirarchial centroid along with their figures and their sample outputs