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chengxu
求两幅存在一定位移或偏差的RGB图像的均方根误差MSE和峰值信噪比PSNR(Seeking two RGB images there is a certain displacement or deviation of the root mean square error (MSE) and peak signal to noise ratio PSNR)
- 2013-03-10 18:04:46下载
- 积分：1
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LP02
利用模式理论，对给定几何尺寸以及折射率分布的光纤进行模式求解与绘图，该程序给出LP02模的求解与绘图。(the LP02 mode of the fiber)
- 2013-09-24 21:20:42下载
- 积分：1
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DSPII_USTC_01
传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能：
1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线；
2） 给出了最陡下降法以及LMS算法的计算公式；
3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形；
4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线；
5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形；
6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线；
7）最终对结果进行了分析，具体见压缩包的word文档。
(Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:
A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve
2 ) gives the steepest descent method and the LMS algorithm formula
3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform
4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)
- 2013-11-06 13:12:36下载
- 积分：1
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Gibbs-Phen
This program demostrate Gibs phenomen in signal processing and communication Engineering.
- 2013-04-09 20:36:44下载
- 积分：1
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regiongrowth52230
一个种子为生长点的彩色图像区域生长程序。交互式Matlab实现(A seed for the growing point of color image region growing process. Each type of Matlab)
- 2014-01-21 14:20:28下载
- 积分：1
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caishuzi
用MATLAB编写的一个猜数字游戏
就是随机生成4位数，你要在有限的步数内猜出。
用法：输入4位数字后按’ok’键，可看到当前结果。
按answer键查看正确答案
按reset键重新开始
还有很多不成熟的地方，发上来想和大家一起商量商量
主要问题：
1、步数限制功能没有完成
2、应当在显示区保留显示以前的所有步骤，但目前只能显示当前步骤
3、按键次数没有保留，无法判断你已经猜了几次
一个小bug：若输入3位数，则会自动把第一位置0
(MATLAB prepared with a game猜数字is randomly generated 4-digit, you have to step in with a limited guess. Usage: Enter the 4 digits after ' ok' button, the current results can be seen. By the answer key to view the correct answer by the reset button to restart where there are many immature, made up and we would like to discuss the main issues discussed with: 1, step 2 did not complete the functional limitations, it should be retained in the display shows all the steps before , but currently only shows the current step 3, the number keys will not be retained to determine a number of you have guessed a small bug: if the input 3-digit, it will automatically position the first 0)
- 2009-05-23 00:35:06下载
- 积分：1
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Chapter2ReadMe
simplified code for
- 2010-10-17 05:50:50下载
- 积分：1
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matlab_plot
如何用Matlab画图
以西东方向为横轴，以南北方向为纵轴。（选适当的点为原点）将国土最西到最东边界在x轴上的区间划取足够多的分点xi，在每个分点处可测出南北边界点的对应坐标y1 ，y2，(How to use Matlab drawing
XiDong direction in the north and south direction for the horizontal axis, for the vertical axis. (choose appropriate point for starting point the west to the east land border on the x axis of interval strokes on the locations take enough in every cent point place xi, can detect the north-south border points corresponding coordinates, y2 y1,
)
- 2011-05-05 09:21:34下载
- 积分：1
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fig_tree
fig_tree和logistic map的那个混沌图像的生成(fig_tree and logistic map of the chaos generated image)
- 2014-09-25 03:28:42下载
- 积分：1
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dctxxyc
基于DCT的图像信息隐藏于提取，隐藏位置为随机数列确定(DCT-based image information hiding in the extraction, hidden location to determine a random series)
- 2021-04-06 09:39:02下载
- 积分：1
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