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dwt
研究中我么采用分段的方法对数字音频信号嵌入水印。为便于研
究，以灰度图像为数字水印原始信号经二值化处理后得到水印再嵌入
音频信号的离散变换域中，从而得到嵌入水印的音频信号，其实现过
程原理框图如图1 所示。在水印嵌入的过程主要实现四个阶段的任
务：(1)数据准备与预处理，主要是准备好水印原始图片和待嵌入水印
的音频信号 (2)音频信号分段处理，用于嵌入水印的音频数据部分等
分成(m1*m2)个音频数据段 (3)水印图像降维处理，在此过程灰度图像
水印转化为二值图象, 要将其嵌入到一维的数字音频信号中, 必须将
二维的图像转化成一维的序列 (4)将水印嵌入到数字音频信号中,从而
最终获得带数字水印的音频信号。(The study I Mody, segmented digital audio signal embedded watermark. Discrete transform domain to facilitate the study of the grayscale image for the digital watermark the original signal is obtained after the binarization processing watermark embedded in the audio signal, thereby obtaining the watermark embedded in the audio signal, and its implementation process schematic block diagram shown in Figure 1. Mainly in the watermark embedding process to achieve the task of four phases: (1) The data preparation and pretreatment, is ready to watermark the original picture and to be embedded in the audio signal of the watermark (2) audio signal segment processing for embedding watermark The audio data portion is divided into (m1* m2) audio data segment (3) The watermark image dimension reduction processing, binary image is converted to grayscale image watermark in this process, and to be embedded into a digital audio signal of a one-dimensional , two-dimensional images must be converted in)
- 2013-03-19 21:11:22下载
- 积分：1
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resolution
一个基于单幅低分辨率彩色图像的超分辨率重建程序(A super-resolution reconstruction program based on single low-resolution color images)
- 2020-11-10 21:09:45下载
- 积分：1
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orbital-dynamics-modeling-
地球和月球二轨道动力学建模和仿真，完整的参数输入仿真结果(moon and the Earth s orbital dynamics modeling )
- 2020-08-30 20:58:10下载
- 积分：1
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Decoupling-Smith-control-
针对实际工业生产中常见的多输入多输出时滞过程, 构造多变量Smith预估控制结构, 提出基于对象模
型伴随矩阵的解耦器设计方法. 通过对解耦后对象的幅频和相频特性分析, 获得对象的简化一阶数学模型. 根
据Smith预估控制结构闭环特征方程的特点, 利用Butterworth滤波器极点配置的原理, 对解耦后的多变量时滞过程
设计PI控制器. 结合实际过程中常见的不确定性, 分析了控制系统保证鲁棒稳定性的充要条件. 最后以实例验证了
本文所提方法的优越性.(The decoupling Smith control method is presented for multi-input-multi-output system with time-delays
which are often encountered in practical engineering. A new method for designing the decoupler based on the adjoint
matrix of the multivariable system model with time-delays is proposed. By analyzing the amplitude-frequency and phasefrequency
characteristics of the decoupled model, the decoupled model is reduced to a first-order model with time-delay.
According to the closed-loop characteristic equation of Smith predictor structure, a PI controller is developed by using the
principle of pole assignment for Butterworth filter. Sufficient and necessary conditions for robust stability are derived for
adaptive and multiplicative uncertainties commonly occurred in practice. Simulation results show the superiority of the
proposed method.)
- 2012-05-11 20:54:22下载
- 积分：1
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mctoolbox
it is a programm that simulate mossaic effect on the field of communicatons under AWGN noise
- 2013-03-06 23:26:53下载
- 积分：1
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modulation3
不同信道下环境下（如瑞利衰落信道或只有路径损耗信道下）提取特征值(Under different channel conditions (such as Rayleigh fading or path loss only channel down) to extract the eigenvalues)
- 2011-10-19 16:13:33下载
- 积分：1
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GS_SVM
SVM参数优化，网格搜索法，在应用SVM分类时用于优化SVM核函数的c,g参数(Gs SVM)
- 2020-11-05 14:59:50下载
- 积分：1
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svm
SVM源代码程序，包含了SVM的各个子模块(SVM source code program, including the various sub-modules of the SVM)
- 2009-10-07 09:37:44下载
- 积分：1
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RLS
最小二乘法(Least squares method)
- 2012-06-03 16:35:00下载
- 积分：1
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Matlabcoban
how to learn matlab from beggining
- 2013-08-21 23:37:45下载
- 积分：1
