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Thediskdrivereadsystem
磁盘驱动系统的有前置滤波器时系统的时间响应和整个系统的不同环节的比较(Disk drive system with pre-filter system response time and the comparison of different segments of the system)
- 2010-11-21 11:26:30下载
- 积分:1
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FDD
数据频域分解法,可能不是很全面,可以利用的这个方法的代码很少,本人也是从网上找的,可能不好理解,大家看看参考把(Data in the frequency domain decomposition method, may not be very comprehensive, code can use this method rarely, I also find from the Internet, you may not understand, we look at the reference to)
- 2014-09-19 14:06:32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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大跨结构、高耸结构随机风荷载数值模拟
大跨结构、高耸结构随机风荷载数值模拟,方便快捷、使用。(Span structures, the towering structure stochastic numerical simulation of wind loads, convenient to use.)
- 2010-12-03 15:13:27下载
- 积分:1
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MATLAB_parallel
matlab 并行工具包
parfor spmd 等多核并行工具包使用方法(matlab parallel toolkit
parfor spmd such as the use of multi-core parallel toolkit)
- 2014-03-05 19:01:46下载
- 积分:1
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workshop
车间布局的主程序,这个程序对车间布局问题具有普遍通用性。(Plant layout of the main program, a program of facility layout problems with general versatility.)
- 2010-10-02 23:47:30下载
- 积分:1
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stft_cf
A matlab function that calculates the short term Fourier transform with adjustable parameters.
- 2009-09-26 04:18:48下载
- 积分:1
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work
倒立摆 bp算法 倒立摆 bp算法倒立摆 bp算法(an easy one)
- 2012-04-28 10:13:37下载
- 积分:1
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Finger-print
matlab code for finger print
- 2011-11-21 17:42:12下载
- 积分:1
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waveletEMD
waveletEMDimproved的原始版本,以小波软阈值降噪对信号进行预处理,对预处理后的信号进行EMD分解(the original version waveletEMDimproved, wavelet soft threshold denoising preprocessing the signal, signal pretreated with EMD)
- 2013-04-16 16:07:40下载
- 积分:1