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DSP
任务：
1） 借助MATLAB画出误差性能曲面和误差性能曲面的等值曲线（参考PPT2.1第17页的两幅图）；
2） 写出最陡下降法以及LMS算法的计算公式（取 ）；
3） 用MATLAB产生方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形（即产生任意一个噪声随机序列）；
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（参考PPT2.1第17页的右下图的曲线1和曲线2）。
5）用MATLAB计算并画出LMS法时 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；
注意：某一次实现的结果并不能从统计的角度反映实验的结果 的正确性，为得到具有统计特性的实验结果，可用足够多次的 实验结果的平均值作为实验的结果。用MATLAB计算并画出 采用LMS法时，J(n)的100次实验结果的平均值随时间n的变 化曲线（即 生成随机噪声信号并计算结果，重复执行100次， 求平均结果）。
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；
(Task:
1 ) Draw with MATLAB error performance surface and surface contour error performance curve ( refer PPT2.1 two chart on page 17 )
2 ) Write the steepest descent method and the LMS algorithm formula ( take )
3 ) Using MATLAB to generate variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform ( ie, any noise generated random sequence )
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 plot using the steepest descent method and the LMS method when H (n) the iterative process in the trajectory curve ( refer PPT2.1 page 17 bottom right of the curves 1 and 2 ) .
5 ) using MATLAB LMS method is used calculate and draw the curve with time n (corresponding to S (n) of a first implementation of a ) and e (n) waveform
Note : in a first implementation of the results are not reflected from a statistical point of view of accuracy of the experimental results ,)
- 2013-11-08 20:09:06下载
- 积分：1
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GMSK
阐述最小移频键控gmsk信号的性能分析方 法(Signal Simulation of GMSK)
- 2020-06-28 11:40:01下载
- 积分：1
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dwprotected
Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
- 2009-07-13 12:14:31下载
- 积分：1
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qrqrq
qr decompostion using new method
- 2011-10-16 19:37:43下载
- 积分：1
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memetic
memetic是一种高效的文化进化计算方法，该范例以Rosenbroek函数为例进行了演示，你也可以加入其它函数进行测试。(memetic cultural evolution is an efficient method of calculating the sample to Rosenbroek function as an example of the presentation, you can also add other functions to be tested.)
- 2011-11-12 02:03:36下载
- 积分：1
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code
this codes present SVM
- 2012-11-28 17:39:39下载
- 积分：1
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laplican
一种拉普拉斯边缘算法的提取的源码，大家可以看看哈(A Laplacian edge of the source extraction algorithm, we will look at Kazakhstan)
- 2008-03-30 18:08:51下载
- 积分：1
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MATLABsignalPLOT
编写的MATLAB处理语音信号的软件界面，能够实现显示输入语音信号的混音，重放，以及波形的时域和频域显示(MATLAB signal plot)
- 2009-12-17 14:12:22下载
- 积分：1
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Topic-a
某班有N个学生，已知他们参加某次考试的成绩（0~100间的整数），求全班同学的平均成绩。(A class is to have N students, known as their new the result of the examination (0 to 100 between integer),for the whole class average scores.)
- 2012-05-11 20:49:05下载
- 积分：1
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test_kxky
说明： 35GHz毫米波的二维冠状面点目标仿真程序(Simulation program of two dimensional coronal point target for 35GHz millimeter wave)
- 2020-11-21 20:36:43下载
- 积分：1
