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4BAR
4 BAR MECHANISM SOLUTION
- 2014-10-14 16:55:14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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MINROUTE
在图与网络论中,求最短路径的Dijkstra算法(M-函数)(In figure and network theory, the shortest path Dijkstra algorithm (M-function))
- 2010-08-16 20:13:31下载
- 积分:1
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demo
8自由度的汽车模型,包括abs clutch 建立了动力学公式的模型,需要对几个积分器设置初值,避免代数环(vehicle model of 8 degrees)
- 2010-12-22 19:57:29下载
- 积分:1
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Matlab-Toolbox-application-guide
Matlab工具箱应用指南应用数学篇,主要包括统计学,偏微分,优化,样条工具箱的应用(Matlab Toolbox application guide- Applied Mathematics articles)
- 2011-05-29 22:32:28下载
- 积分:1
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jialumianjilideweijinglixuesimulink
加入路面激励模型的磁流变减震器伪静力学模型的simulink程序(the simulink proceducer of MR damper s non-force mode of inputting road mode )
- 2015-06-18 09:43:01下载
- 积分:1
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turbo码的生成和解码 turbo QAM
turbo码的生成和解码 16QAM调制(turbo QAM)
- 2021-04-11 22:58:57下载
- 积分:1
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Maltab-in-mathematical-modeling
《matlab在数学建模中的应用》卓金武版,从数学建模的角度介绍matlab的应用。书中内容完全是根据数学建模竞赛的需要而编排的,涵盖了绝大部分数学建模问题的matlab求解方法。源码为《Maltab在数学建模中的应用》的源程序和数据。
("Matlab in mathematical modeling, " Zhuo Jinwu version, from the mathematical modeling point of view on the application of matlab. The book content is based entirely on the needs of mathematical modeling contest arranged, covering the majority of matlab mathematical modeling method for solving the problem. Source for the "Maltab in mathematical modeling, "the source code and data.
)
- 2011-05-01 16:06:04下载
- 积分:1
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newtun
it is a matlab code for non linear programming.
- 2012-07-25 19:39:13下载
- 积分:1
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59300
its matlab code for cognitive radio.
- 2015-01-31 17:56:37下载
- 积分:1