Q3_1

供初学者学习用的matlab基本编程源码(for beginners learning the basic Matlab programming FOSS)

交流调压调速matlab仿真图，电力拖动自动控制系统与matlab仿真中的图形，请参阅书籍(AC variable voltage control matlab simulation diagram, electric drive in the automatic control system simulation matlab graphics, see the books)

说明：  FA算法，能很好的解决函数优化问题，对于解高维函数有较好的实验结果(FA algorithm can solve function optimization problem, the solution of high-dimensional function for better results)

对数据进行傅立叶分析，从时域转换到频域，观察信号的频谱结构，从分析信号的特点(Fourier analysis of the data, the time domain to the frequency domain, spectral structures of the observed signal, the signal characteristics the analysis)

单脉冲测角程序，实现阵列的比幅法和比相法测角(monopulse angle estimation processing， based on the amplitude comparison and phase comparison)

matlab频谱分析 很有用(matlab spectrum analysis is useful)

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 .)

The code demonstrate morphing that is basically source image warping followed by cross dissolving.

说明：  一个函数int fun(int *s,int t,int *k),用来求除数组的最大元素在数组中的下标并存放在k所指的储存单元中(A function int fun (int* s, int t, int* k), for requirements in addition to an array of the largest element in the array subscript coexist on the storage unit referred k)

This code consist of QAM CDMA BPSK and other modulation codes