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common-function
二进制调制解调系统 仿真程序中的常用函数(common function)
- 2011-08-19 16:27:18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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frft
这是一个分数阶傅里叶算法的经典matlab程序(This is a fractional Fu Liye algorithm is the classic matlab program
)
- 2013-10-25 11:54:48下载
- 积分:1
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leidacesuceju
实现雷达测距功能,通过matlab算法画出三位图像,实现精确测距的功能(To achieve radar ranging function, through the matlab algorithm to draw three bit image, to achieve accurate ranging function)
- 2021-04-11 20:08:57下载
- 积分:1
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STLFMCWtest
stlfmcw雷达对目标的测速和测距,通过上下差频得到差拍信号,在进行快速fft得到目标的一维距离和速度(st fmcw radar target speed and distance measurement, frequency beat signal obtained by the difference between up and down, making quick fft obtained one-dimensional target distance and speed)
- 2020-12-05 19:49:23下载
- 积分:1
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ReflectanceSpectrum
说明: matlab模拟光纤光栅特性的算法与代码(Characteristics of Fiber Bragg Grating matlab simulation algorithm and code)
- 2008-11-23 19:35:41下载
- 积分:1
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Correlation
过程相关性检验,模型+脚本。matlab(correlation test, model+ scripts. matlab)
- 2013-08-10 20:17:25下载
- 积分:1
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LEACH_Matlab_Code
使用matlab仿真的无线传感器网络LEACH协议(LEACH protocol for wireless sensor networks using matlab simulation)
- 2013-04-06 23:23:00下载
- 积分:1
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LSB
时域LSB隐藏算法,实现随机信息隐藏到载体图片内,并界附带提取信息代码(LSB hidden time-domain algorithm, the realization of random information hidden within the picture carrier, and industry code attached to extract information)
- 2009-04-10 16:22:41下载
- 积分:1
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jadeASC
jade算法程序主要用于对多激励复杂情况下振动源的信号分离方法研究(jade Algorithm procedure is mainly used for the incentive more complex cases, study on the method of vibration source signal separation)
- 2013-05-07 17:04:04下载
- 积分:1