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IPToolbox
IP toolbox dmpler shift
- 2015-01-02 20:49:29下载
- 积分:1
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electromagnetic-field-moment-method
用矩量法计算半波振子的电流分布、输入阻抗、E面方向图。(Calculated half-wave dipole moment method using the current distribution, input impedance, E plane patterns.)
- 2013-12-03 21:49:38下载
- 积分:1
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最大似然
说明: 两种不同的假设:
H1 : 0 xn A fn wn ( ) cos(2 ) ( ) = ++ π θ n=1,2,…,N,f0 为规一化频率
H0 : xn wn () () = n=1,2,…,N
其中 w[n]是均值为 0,方差为 2 σ n 的高斯白噪声,A 已知,样本间相互
独立,信号与噪声相互独立; 相位θ 是随机变量,它服从均匀分布
1 0 2 ( ) 20 p
θ π θ π ?? ≤ ≤ = ??? 其它
1)改变输入信噪比(改变 A 或噪声方差均可),给定虚警概率,画出
输入信噪比与检测概率之间的理论曲线。(注意:理论检测曲线与样本
数有关) 2)改变样本数,用 Monte-Carlo 实验方法得出 PF=0.001 时输入信噪比
与检测概率之间关系曲线(至少三条),并得出结论。 3)改变 M-C 实验次数,样本数不变,用 Monte-Carlo 实验方法得出 PF =0.001 时输入信噪比与检测概率之间关系曲线(至少三条),并得出
结论(Draw the theoretical curve between input SNR and detection probability)
- 2020-01-03 22:32:15下载
- 积分:1
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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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matlab
说明: 基于MATLAB的数字水印技术研究。本文从数字水印技术本身的特点、一般模型和典型算法出发,简要地介绍了一种可以快速上手的高效的实用语言——Matlab(MATLAB-based digital watermark technology. In this paper, the characteristics of digital watermarking technology itself, general models and algorithms start, briefly describes a quick-use efficiency of practical language- Matlab)
- 2010-04-08 19:02:30下载
- 积分:1
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Construction-and-Realization
关于三次样条插值在matlab中的实现,给出了源程序(Construction and Realization of Cubic Spline Interpolation Function )
- 2012-03-31 11:45:00下载
- 积分:1
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oneweichafen
一维的有限差分源代码,,matlab,简单易学,方面使用,有限差分的优点就是计算简便高效(One-dimensional finite difference code)
- 2011-08-28 09:43:10下载
- 积分:1
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MATLAB.
MATLAB图形技术—绘图及图形用户接口,本书主要介绍matlab绘图技术,通俗易懂。(MATLAB graphics- drawing and graphical user interface, this book introduces the matlab graphics, easy to understand.)
- 2010-08-20 08:48:23下载
- 积分:1
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POUCH
Pss/E 仿真结果输出到Matlab环境,便于后续分析、作图等(PSS/E .out file/matlab)
- 2013-01-12 11:11:49下载
- 积分:1
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inverse21
inverse dynamic of robot.nt to upload source code, you can
- 2013-07-28 17:24:36下载
- 积分:1