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tsbbpso
粒子群改进算法，有助于学生学习,可以在此基础上改进(Improved particle swarm algorithm to help students to learn, you can improve on this basis)
- 2011-10-16 09:58:17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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baifeng
单缝衍射，白光重现。大学物理很好的演示示例。自编。(Single slit diffraction, the white light to reproduce.University physics demonstrating example very well.The self-made.)
- 2016-05-09 00:41:08下载
- 积分：1
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tsa
MATLAB的时间序列分析相关函数,涵盖对时间序列分析所需要所有重要函数(MATLAB time series analysis of the correlation function, time series analysis covers all the important functions required for)
- 2008-07-31 20:14:41下载
- 积分：1
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Roll-optimization
滚动优化预测用到的部分程序，提供开发思路(/Rolling optimization in predictive control)
- 2014-11-26 18:22:53下载
- 积分：1
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DFS
深度优先搜索属于图算法的一种,英文缩写为DFS即Depth First Search.其过程简要来说是对每一个可能的分支路径深入到不能再深入为止,而且每个节点只能访问一次.(DFS Depth First Search is a kind of graph algorithm, English abbreviation for DFS is the Depth First Search. The process is briefly branch of every possible path can t go deep into the deep, and each node can only access at a time.)
- 2015-04-10 10:28:28下载
- 积分：1
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Radial_Power_Flow
load flow in redial distribution network
- 2012-11-22 03:04:29下载
- 积分：1
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sub
Solving an upper triangular system U x = b by back-substitution
Solving a lower triangular system L x = b by forward-substitution(backward substitution and forward substitution)
- 2011-10-25 20:36:29下载
- 积分：1
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delay-estimation
Time delay estimation in cooperative communication
- 2013-05-07 12:47:04下载
- 积分：1
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rsa
The file contains code for hiding text in an image file.
- 2015-03-31 18:40:46下载
- 积分：1
