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adcbi
Bipolar analog to digital converter
- 2013-12-04 00:25:35下载
- 积分:1
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synthetic-seismogram
地震勘探中,正演合成地震记录;通过子波(这里有几种不同子波模型)与定义好的反射系数进行褶积运算,实现地震记录的人工合成。(Seismic exploration, modeling synthetic seismic record via wavelets (there are several models of different wavelets) defined reflection coefficient convolution operation, realization of synthetic seismic record.)
- 2015-01-29 13:28:13下载
- 积分:1
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dsp
MY UPLODED MATLAB ARE ABOUT DSP PROCESSER AND FILTER
- 2010-12-15 14:39:46下载
- 积分:1
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color
彩色图像分解与重构,非常简单易懂,需要灰度图像的可以下载(caisetuxiangfenjiechonggou)
- 2010-01-10 22:30:03下载
- 积分:1
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eemd
一种eemd程序,为学习emd的同学做参考,希望大家多交流学习~(an eemd program,as a reference~)
- 2012-10-08 11:13:32下载
- 积分:1
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Astar_Archive
A星路径规划算法
A星路径规划算法!
A星路径规划算法!!(A Star Algorithm
A Star Algorithm!
A Star Algorithm!!)
- 2015-07-01 22:18:04下载
- 积分:1
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callme
my assignment very awesome, call me
- 2010-05-31 18:05:36下载
- 积分:1
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image-watermark
数字水印实现技术,实现图像的水印防伪处理,灵活实现水印嵌入(image watermark)
- 2020-12-05 09:29:26下载
- 积分:1
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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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123
信号为两个正弦信号加高斯白噪声,各正弦信号的信噪比均为10dB,长度为N,信号频率分别为 和 ,初始相位 ,取 , 取不同数值:0.3,0.25。 为采样频率。分别用Levinson递推法和Burg法进行功率谱估计,并分析改变数据长度、模型阶数对谱估计结果的影响。(Signal into two sinusoidal signals applied Gaussian white noise, the SNR of each sinusoidal signals are 10dB, a length of N, respectively, and the signal frequency, initial phase, take, take different values: 0.3,0.25. It is the sampling frequency. Respectively Levinson recursion method and Burg method for power spectrum estimation, and change the length of the data analysis, the impact of model order estimation result spectrum.)
- 2020-12-05 10:19:27下载
- 积分:1