code

。概括 了数字水印的研究现状和基本原理, 分析了基于小波变换的数字水印算法的优势, 阐述了小波 域水印嵌入与提取的过程, 最后由Matlab 仿真实现, 结果证明基于小波变换的数字水印具有较 强的掩蔽性和鲁棒性。(generalization The research status and the digital watermarking technology, analyzes the basic principle based on wavelet transform the advantage of digital watermarking algorithm, this paper expounds the wavelet Domain watermarking embedding and extracting process, finally by Matlab simulation results show the based on wavelet transform digital watermarking has more Strong masking and robustness. )

genetic algorithm program for power system

说明：  SAR(合成孔径雷达)距离多普勒成像算法分析与仿真(Analysis and Simulation of SAR Range Doppler Imaging Algorithm)

这种邻域插值的matlab源代码,学生需要可以下载使用(This neighborhood interpolation of matlab source code, students can download to use )

基于导频实现OFDM信道估计，采用DFT算法。(based on comb to realzie OFDM channel estimation)

说明：  对s进行小波分解，提取小波分解的低频系数，提取小波分解的各层高频系数，绘出各系数的图形(Wavelet decomposition of the s to extract the low frequency coefficients of wavelet decomposition to extract the layers of high-frequency coefficients of wavelet decomposition, the coefficients of the graphics drawn)

在OFDM仿真模型的基础上用MATLAB语言编写出OFDM发送、信道及接收整个系统,在系统仿真正确的前提下,对循环前缀、信道估计等性能改善方法进行进一步仿真验证,得到了预期的理想结果(In OFDM simulation model based on the use of MATLAB language to send the OFDM, channel and receive the entire system, in the system under the premise of the correct simulation of the cyclic prefix, channel estimation methods for further performance improvement simulation, have been expected results)

在DOA估计中，实际测量和理论肯定存在误差，比如通道误差，阵元位置误差，我们提出一种toplitz的预校正方法。(In the DOA estimate, the actual measurement and theory certainly exist errors, such as channel error, array (position errors, we put forward a kind of toplitz or calibration methods. )

比例积分型的GPC，由新的目标函数解出的控制率与常规PI控制有着一样的形式，这样就获得了一种具有PI结构的广义预测控制，而且其参数 、 有着明显的工程意义，整定原则基本类似于PID。(Proportional-integral-type GPC, the new objective function solution of the control rate with conventional PI control has the same form, so to obtain a PI structure with generalized predictive control, and its parameters, there is a clear sense of the project, setting basic principle is similar to PID.)

分形维数的matlab代码，应应用差分盒子方法进行计算分形维数 (Points of the fractal dimension of the matlab code, should be applied differential box method to calculate fractal dimension)