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MDL_segmenter
em algorithm - Find approximate solution to Sf = conv(s,f) = d using EM iteration.
EM seeks to minimize the Poisson negative log likelihood function
J(f) = sum_i {[Sf]_i - (d_i + sigma^2)*log([Sf]_i + sigma^2)}.
- 2010-10-28 13:35:59下载
- 积分：1
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zaoshengzikongjian
说明： 噪声子空间法 进行波达估计 算法较复杂 不过效果明显(Noise subspace method-of-arrival estimation algorithm significantly more complex, however the effect of)
- 2008-09-01 14:01:30下载
- 积分：1
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Final-project
The FDTD code with PML and PEC dounary. There are including the worb repprt.
- 2013-05-13 07:24:06下载
- 积分：1
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BOC
BOC调制系统，扩频序列为复合序列，系统误码率分析(BOC modulation system, the spreading sequence is a composite sequence BER Analysis)
- 2016-03-02 09:52:18下载
- 积分：1
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FROG
Frequency-resolved optical gating
- 2011-08-24 11:04:15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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numerical
Numerical program on Newton’s forward difference formulae, the use of Sterling formulae & the use of Newton’s backward difference formulae combindly, Trapezoidal rule, Gauss-Seidal method, Jacobi method.
- 2011-01-31 18:20:34下载
- 积分：1
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MATLABfacefbtprotected
Face Recognition Based on Polar Frequency Features
- 2012-05-25 17:37:06下载
- 积分：1
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MATLAB simulation of the Brown movement
布朗运动的MATLAB模拟，动态图形的一个简单学习例程。txt文件，粘贴到matlab中就可以运行。(The MATLAB simulation of the Brown movement, a simple learning routine for dynamic graphics. Txt files, paste into the Matlab can run.)
- 2018-02-09 23:12:31下载
- 积分：1
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yiqunsuanfa
各种蚁群算法详细介绍，详细的例程和讲解。(Details of the various ant algorithms, routines and explain in detail.)
- 2010-07-28 16:39:30下载
- 积分：1
