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The_application_of_wavelet_analysis_techniques
这是小波分析的应用技术,介绍了程序的功能作用及一些小算例(This is the application of wavelet analysis techniques, introduced the functional role of the program and some small examples)
- 2009-11-26 11:50:10下载
- 积分:1
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aoshu
小学数学一个奥数题目的编程,方便运算出此类型的题目(Primary Mathematics Olympiad title of a program to facilitate the operation of this type of subject)
- 2011-07-04 00:11:08下载
- 积分:1
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dingbuchangLMS
最新的定步长LMS自适应滤波算法,对自适应算法有很大帮助(The latest fixed step size LMS adaptive filtering algorithm)
- 2015-01-12 12:39:18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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steganography
In this code we used a fingerprint as cover and a text image as hidden image by using wdt to enhance security for sending our text.
- 2016-10-04 18:51:01下载
- 积分:1
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psl
王惠文老师的偏最小二乘回归方法及其应用,很有用的一本书(Mr wang s PLS and its application, very useful book)
- 2010-09-30 15:58:36下载
- 积分:1
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水声信号处理
说明: 水声信号处理,仿真,波束成型 MUSIC Capon_beamforming
FFT(Underwater acoustic signal processing, simulation, beamforming, music Capon_ beamforming
FFT)
- 2021-02-04 15:10:53下载
- 积分:1
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Matlabyichuansuanfa
遗传算法工具箱的简介及其使用 遗传算法工具箱的简介及其使用 遗传算法工具箱的简介及其使用(Introduction to Genetic Algorithm Toolbox and its use)
- 2010-10-23 11:37:09下载
- 积分:1
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housiu
小波包分析提取振动信号中的特征频率,有小波分析的盲信号处理,针对EMD方法的不足。( Wavelet packet analysis to extract vibration signal characteristic frequency, There Wavelet Analysis Blind Signal Processing, For lack of EMD.)
- 2016-06-18 15:59:11下载
- 积分:1
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pca_lda
主流的人脸识别识别算法pca和lda的融合,将pca和lda方法的优点进行了融合补充的互相之间的不足(Mainstream recognition algorithm for face recognition pca and lda integration of the pca and lda method has the advantage was integration between each other enough to add)
- 2010-08-20 10:03:51下载
- 积分:1