-
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
-
ISI
理解无码间串扰的条件;利用matlab仿真,验证无码间串扰的条件,画出相关波形及眼图,并画出有噪声时的误码率特性曲线;对仿真结果进行性能分析
(Understand the inter-symbol interference-free conditions using matlab simulation, verification without inter-symbol interference conditions, draw relevant waveforms and eye diagram, bit error rate characteristic curve and draw when there is noise performance analysis of simulation results)
- 2013-12-10 00:29:14下载
- 积分:1
-
gui_tutorial_images_3
gui tutorial methods part 3
- 2014-02-23 02:01:10下载
- 积分:1
-
uwb_pam
IEEEuwb信道模型下采用pam调整的超宽带通信仿真程序。(simulation program of ultra widebandth communicaiton using pam modulation,the channel model adopt is IEEE uwb channel model.)
- 2009-12-15 23:04:35下载
- 积分:1
-
pc-matlab
通信原理—基于Matlab的计算机仿真 (北京邮电大学出版社) 书籍源代码(Communication Theory book source code- computer simulation based on Matlab (Beijing University of Posts and Telecommunications Press))
- 2012-05-03 17:34:24下载
- 积分:1
-
cma
CMA 盲均衡算法代码 采用QAM调制信号(CMA,blind equalizer with QAM)
- 2011-06-07 13:57:00下载
- 积分:1
-
PowerTrace
电力市场中用于潮流追踪确定分摊费用的程序(Program for the electricity market trend tracking to determine the cost-sharing)
- 2021-01-31 23:20:01下载
- 积分:1
-
功能函数。人员疏散的一种规则 findnew
功能函数。人员疏散的一种规则,可以自动选择位置,各位见笑。(A simple program for CA evacuation.)
- 2019-04-04 15:33:58下载
- 积分:1
-
MRAC
MRAC for control systemes
- 2011-10-14 23:40:09下载
- 积分:1
-
photovoltaic-inverter-model--in-dual-closed-loop-
photovoltaic inverter model, in dual closed loop controlphotovoltaic inverter model, in dual closed loop controlphotovoltaic inverter model, in dual closed loop controlphotovoltaic inverter model, in dual closed loop control
- 2013-10-25 03:25:52下载
- 积分:1