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hermite_pulse
hermite,uwb成形脉冲函数,不同导数时(hermite, uwb pulse shaping function, different derivative when)
- 2007-11-05 23:55:53下载
- 积分:1
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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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esintp
An Edge Guided Image Interpolation Algorithm via Directional Filtering and Data Fusion
- 2008-01-02 18:59:30下载
- 积分:1
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FEM-Temperature-field-display
采用matlab编程进行有限元温度场显示(Using matlab programming for finite element temperature display)
- 2013-11-12 17:14:27下载
- 积分:1
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unti11
单级的PFC控制回路,精确的仿真了模型,适合初学者学习(PFC control circuit,and have good simulation)
- 2011-12-23 14:45:22下载
- 积分:1
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Add_Colorbar_to_Plot_1
用matlab实现的往plot中添加color bar 的例子程序(add color bar to plot using matlab)
- 2012-08-16 16:50:02下载
- 积分:1
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six-arithmetic--estimation-DOA
六种算法估计DOA 波达方向;智能天线;自适应滤波(Six algorithms estimate DOA Direction of Arrival smart antenna adaptive filtering,)
- 2013-04-09 20:26:46下载
- 积分:1
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wiener_LMS
基于LMS的自适应滤波与维纳滤波的性能比较(Performance comparison of LMS-based adaptive filtering and Wiener filtering)
- 2014-11-07 11:59:41下载
- 积分:1
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Matlab-study-60-codes
matlab学习的程序,一些基本的程序,用于刚开始学习matlab(matlab study codes)
- 2011-12-14 08:25:48下载
- 积分:1
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Peakfinder
Basic function to locate and measure the positive peaks in a noisy
data sets. Detects peaks by looking for downward zero-crossings
in the smoothed third derivative that exceed SlopeThreshold
and peak amplitudes that exceed AmpThreshold. Determines,
position, height, and approximate width of each peak by least-squares
curve-fitting the log of top part of the peak with a parabola.
- 2009-03-18 14:58:18下载
- 积分:1