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sgz
具有滑动窗的geoertzel算法函数。提供了一个函数,用于实现滑动窗的geoertzel算法。已调试通过,可直接调用。(A function for slide geoertzel arithmetic which can be applied directly.
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- 2010-12-02 21:02:30下载
- 积分:1
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Wavelet-Analysis
小波分析基础书籍,方便图像及信号处理人员参考学习(A wavelet reference book)
- 2012-05-11 20:58:46下载
- 积分:1
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lpcar2cc
To convert ar filter to complex cepstrum CC
- 2009-03-14 00:01:54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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200755012570884
该文件详细介绍了MATLAB进行矩阵的各种运算,内容丰富,浅显易懂(For matrix operation with MATLAB)
- 2010-10-26 16:53:57下载
- 积分:1
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convertorder
将一个被小波包分解的矩阵变成小波结构,根据最高的分解层次,将原图3*level+1块分开赋给矩阵以便单独操作,按从上到下,从左到右的顺序(A matrix of wavelet packet decomposition into wavelet structure, according to the highest level of decomposition, the original 3* level+1 block separately assigned to the matrix in order to operate independently from top to bottom, from left to right order)
- 2012-04-07 16:34:47下载
- 积分:1
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prtools_ac
This package for prtools
- 2012-09-22 07:41:30下载
- 积分:1
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nndesign_5
matlab在神经网络中的一些界面函数(Matlab in neural network interface function of)
- 2005-01-01 09:31:33下载
- 积分:1
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3dbeam_stiffness
用matlab编写的,有限元三维梁单元的单元刚度矩阵计算程序,各节点6个自由度。(prepared by the three-dimensional finite element beam element of the element stiffness matrix calculation program, the 6-DOF nodes.)
- 2005-07-09 13:48:05下载
- 积分:1
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38e8f2fcaced69ebfd037f50
说明: matlab时域分析法中GUI 设计响应(matlab GUI time-domain analysis of the design response)
- 2010-04-01 22:20:24下载
- 积分:1