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MP3-watermarking
说明: :针对MP3 编码方式和帧结构进行分析,利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步
骤,很好地实现了水印的自适应嵌入。对于不同的系统要求,还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入,使算法
具有更大灵活性。同时在牺牲一定的嵌入空间前提下,实现了水印信息的自同步。实验表明,对于不同风格的音乐,该水印算法
具有很好的不可听性。(In this paper,the encoding method and the frame structure of MP3 are expounded in detail,a watermark algorithm
is proposed based on the scale factor in MP3 frame.By introducing the step of frame altering analysis,the algorithm
can realize that watermarks is embedded adaptively.By modifying threshold SNRlim(the ratio of signal to noise),the algorithm
can meet different requirements of some system,that is what enable the algorithm to have a bigger flexibility.Based on expense
of some embedding positions,the watermark can be embedded with self-synchronization.The experiment results show
this algorithm can get a good audio effect with various types of audio.)
- 2011-02-24 11:50:25下载
- 积分:1
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DTMF-Dectect
To implement a DTMF encoder and decoder in a noisy environment.
- 2013-03-30 00:02:32下载
- 积分:1
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add_phase_noise
怎样给信号添加相位噪声--------------。(How to add phase noise to the signal.)
- 2013-04-16 21:23:31下载
- 积分:1
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Multicarrier-Modulation-for-Data-Transmission
Multicarrier Modulation for Data Transmission:
an Idea whose Time Has Come
- 2011-09-20 19:42:33下载
- 积分:1
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user_selection_ZF_greedy
Scheduling scheme for MIMO downlink
- 2015-04-08 18:19:34下载
- 积分:1
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emdPinstfreq
EMD 分解的MATLAB程序 是对时间信号分解的一种办法(EMD decomposition of time MATLAB program is a way of signal decomposition)
- 2011-05-03 00:44:27下载
- 积分:1
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FFT
MATLAB 傅里叶分析 快速傅里叶分析 非常正确的资料 值得下载(MATLAB FFT)
- 2013-10-03 20:39:01下载
- 积分:1
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fuzzy1
模糊控制的程序,基于matlab工具箱,下载就能用,绝对正确(Fuzzy control program, based on the matlab toolbox, download you can use, absolutely correct)
- 2011-06-09 15:58:24下载
- 积分:1
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all_medfilt2
此为中值滤波原程序,通过matlab调用可实现滤波(this filter for the original procedure for the adoption of Matlab can be called Filter)
- 2007-05-09 23:01:25下载
- 积分:1
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Matlab
these matlab files are different modulation techniques in communication
- 2011-07-20 13:14:17下载
- 积分:1