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otsuadaptivethredholding
说明: otsu自适应阈值分割 用于图像分割二值化(otsu adaptive thresholding segmentation for image binarization)
- 2011-04-18 10:34:05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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fk3.2
用于地震学中的正演波形计算和波形拟合,也可用于地震勘探中,用途广泛(a software that can forward the waveform )
- 2014-08-11 18:49:49下载
- 积分:1
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VRFT_for_PID_tuning
说明: VRFT,pID整定的先进算法。matlab程序。该方法的引用文献在说明中提及,可运行检验。(A direct PID tuning method.)
- 2011-04-11 22:15:50下载
- 积分:1
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do_gabor_filtering.m
Gabor filter-based fingerprint recognition algorithm..
- 2011-07-13 17:42:13下载
- 积分:1
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loopmatlab2009
Loop 曲面细分的matlab完整源程序,包括算法的实现和多个测试用例.是曲面细分入门的罕见好资料.(Loop subdivision surfaces of matlab full source, including the algorithm implementation and multiple test cases. Is a rare good surface segmentation data entry.)
- 2009-10-08 22:17:35下载
- 积分:1
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TSPga
说明: 标准遗传算法求解TSP。算法采用交叉、变异、赌转轮选择(Genetic Algorithm for TSP)
- 2010-04-27 08:32:05下载
- 积分:1
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RD_code
it is a matlab file.it is used to do some basic rd in matlab.
- 2013-02-01 22:32:27下载
- 积分:1
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QPSK-MSK-QAM-OFDM
完整的QPSK-MSK-QAM-OFDM调制解调matlab程序。(Complete QPSK-MSK-QAM-OFDM modulation and demodulation matlab program.)
- 2015-01-22 23:01:00下载
- 积分:1
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RBF-stockmarket-predict
数据预测,采用RBF最近邻算法预测股市趋势(Data to predict RBF nearest neighbor algorithm predict stock market trends)
- 2013-04-29 11:21:42下载
- 积分:1