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Many-watermarking-embedding
提出了一种鲁棒的多水印嵌入与检测算法,该算法基于小波域,且提取水印时不需要原始图像,保护了原始图像的安
全。在该多水印算法中,提出并使用了一种将密码学和常规的数字水印制作方法- - - 叠加法和量化调制法,有机结合起
来的新的方法,在水印嵌入时,不同的水印,生成与该水印相关的不同的密钥,在进行水印的提取时,用不同的密钥和待测的
图像提取出相应的水印。通过将密钥向第三方注册,可以获得对原始图像的所有权。(A robust multi-watermark embedding and detection algorithm, the algorithm based on wavelet domain, and extract the watermark without the original image, protect the safety of the original image. In the multi-watermarking algorithm, will be presented and used a conventional cryptography and digital watermarking production method--- superposition method and quantify the modulation method, combine the new method, the watermark embedding different watermark, associated with the watermark generating different keys, making extraction of the watermark when tested with a different image key and the corresponding extracted watermark. By the key to a third party registration, can be obtained ownership of the original image.)
- 2011-05-15 23:37:02下载
- 积分:1
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SPWM-voltage-invertor
:SPWM调制技术是通过改变输出方波的占空比来改变等效的输出电压,其调制波为正弦波,脉冲宽度间占空
比按正弦规率排列, 这样输出波形经过适当的滤波可以做到正弦波输出。它广泛的用于支流交流逆变器。本次实
验使用Matlab/Simulink对SPWM技术进行仿真并分析数据。(: SPWM modulation by changing the duty cycle square wave output to change the equivalent output voltage, the modulated sine wave, pulse width, duty cycle between the rate at sine arranged so that the filter output waveform can be done properly to the sine wave output. It is widely used in branch AC inverter. The experiment uses Matlab/Simulink simulation of the SPWM technique and analyze data.)
- 2011-05-22 15:03:05下载
- 积分:1
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sgysg
离散时间的基本运算,是MATLAB函数改进增强版本,更加的实用,包括卷积,折叠等基本运算(Discrete-time basic operations, is an enhanced version of MATLAB function improved, more practical, including convolution, folding and other basic operations)
- 2013-10-29 16:14:14下载
- 积分:1
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Elman
说明: MATLAB Elman神经网络的数据预测的电力负荷预测模型研究源码(MATLAB Elman neural network data prediction power load forecasting model research source code)
- 2020-10-20 22:37:25下载
- 积分:1
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20100606matlab7
matlab相关书籍,适合做初学者用作参考(matlab books, suitable for beginners as a reference)
- 2010-06-20 22:43:38下载
- 积分:1
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OFDM_send_matlab
ofdm的发射机用matlab仿真实现,浅显易懂,适合初学者使用(transmitters ofdm simulation using matlab, easy to understand and use for beginners)
- 2009-06-06 10:37:02下载
- 积分:1
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ROBOT
西门子机械手模型程序,适合做课程设计题目。(Siemens manipulator model program, suitable for curriculum design topics.)
- 2011-05-09 15:08:06下载
- 积分:1
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Taylor TDOA
参考文献《基于泰勒级数展开的蜂窝TDOA 定位算法》以及 《基于Chan氏算法和Taylor级数展开法的协同定位方法》对Taylor算法进行仿真;认定基站数目为5个;(The Talyor algorithm in the TDOA location based on the CDMA cell network)
- 2014-12-22 21:10:15下载
- 积分:1
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emd
自己编写的简单emd分解,能够将信号分解成几个imf分量(I have written a simple emd decomposition, the signal can be broken down into several IMF component)
- 2013-05-16 10:48:45下载
- 积分:1
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zigbee(matlab)
说明: 在matlab实现的zigbee源代码,并有相关论文做描述,比较全面(Zigbee achieved in the matlab source code, and have the relevant papers to do a description of a more comprehensive)
- 2008-09-04 14:28:28下载
- 积分:1