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dwt2
本文提出了一种基于独立分量分析的音频数字水印方法。嵌入水印时,对原始音频文件进行一级小波分解,在分解
得到的逼近分量中利用随机混合方法嵌入水印后进行小波逆变换形成嵌入水印的音频文件。仿真实验结果表明这种方
法的强鲁棒性和可行性。(Abstract:Audio p roduction is one of the important digital multimedias, which transmit becomes more and more convenient. To
p revent the multimedia content from being stolen or illegally used, audio content p rotection techniques become increasingly impor2
tant so that the potential of these app lications can be reached. As the importantmethod of copyright p rotection, the digitalwater2
marking technology has been acquired widely recognition and research. This paper p resents a method of digital audio watermark2
ing based on independent component analysis. When embedding watermarking, the original audio is decomposed by single2level
discrete 12D wavelet transform, watermarking is embedded by mixing randomly to the app roximation coefficient vector obtained,
and the audio is single2level reconstructed receiving audio havingwatermarking. Emulated experiment results show that thismeth2
od is robust and feasible.)
- 2009-06-04 17:43:21下载
- 积分：1
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111
说明： 运用Matlab求解三个传递函数的群延迟特性曲线(Use Matlab to solve the three transfer function of the group delay characteristic curve)
- 2008-11-06 18:17:26下载
- 积分：1
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A-Variable-Step-Size-LMS-Algorithm
一种变步长的归一化最小均方自适应滤波算法的实现(A variable step size normalized least mean square adaptive filter algorithm to achieve)
- 2011-06-22 22:38:08下载
- 积分：1
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zhouqi
通过周期循环算法检测信号，并对不同类型窗函数进行检测性能分析(Signal detection algorithm through the cycle, and to detect different types of performance analysis window function)
- 2011-06-27 12:39:13下载
- 积分：1
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petri
说明： 这是基于MATLAB中的stateflow的一个简单的单水箱状态机(Single Water Tank State Machine)
- 2019-04-02 20:56:45下载
- 积分：1
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改进粒子群算法的PID控制器优化设计
说明： 用pso对bp神经网络进行优化，对pid控制器进行优化设计(Using PSO to optimize BP neural network and PID controller)
- 2020-11-12 19:39:44下载
- 积分：1
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Lqrsim
LQR连接外部数据处理，教学实验都可以采用(LQR connection to external data processing, teaching experiments can be used)
- 2013-09-13 18:08:22下载
- 积分：1
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rf
说明： 跳频是按跳频序列随机改变一个信道所占有频道频率的技术。在GSM 系统中，可利用跳频技术频率分极和干扰分极的特点，改善网络质量。引入跳频技术，可保证在网络软拥塞不上升的情况下，频率复用度较小。(FH frequency hopping sequence is based on a random channel change in the country channel frequency technology. In the GSM system, can make use of frequency hopping technology sub-polar and polar characteristics of interference and improve network quality. The introduction of frequency-hopping technology to ensure that congestion in the network does not increase in the soft case, a smaller frequency reuse moment.)
- 2009-05-12 19:44:55下载
- 积分：1
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zhenliefangxiangtupiancha
阵列信号对于天线阵设定的频率有偏差的情况下的方向图效果
(Array signal to the antenna array to set the frequency deviation case pattern effect)
- 2012-04-26 16:06:37下载
- 积分：1
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ch01
book for matlab for engeniers in antena modulation..
- 2010-10-22 17:16:23下载
- 积分：1
