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paper1
Gabor小波变换技术对医学CT图像进行纹理特征分类时,由于图像拍摄角度的变化会造成分类的误差。针对以上问题,在Gabor小波变换的基础上提出一种用于分析旋转不变医学图像的方法。该方法采用旋转规范化,即特征元素的循环移位使规范化后所有的图像都具有相同的主方向。实验结果表明,加入旋转规范化循环算子的Gabor小波变换在医学CT图像纹理特征分类时能够达到较好的精确度。(Gabor wavelet transform lacks in its ability to classify the medical CT image if it’s rotation invariant image. Aiming at the problem, an approach is presented for rotation invariant medical texture classification based on Gabor wavelet transform. Rotation normalization is achieved by circular shift of the feature elements, so that all images have the same dominant direction. Experimental result shows that Gabor wavelet transform with circular operator of rotation normalization has well precision to classify the medical CT image.)
- 2011-12-04 15:42:15下载
- 积分:1
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Fir
说明: 窗函数法的Fir数字滤波器设计 Matlab(Window function method of the Fir Digital Filter Design)
- 2010-03-23 22:06:30下载
- 积分:1
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emd
emd分解是对原始信号分解得到各个分量的过程,它的核心是通过找出信号的极大值和极小值点拟合出上下包络从而得到平均包络。(The emd decompose each component of the process of decomposition of the original signal, its core is by identifying the maximum and minimum points of the signal fitting upper and lower envelopes in order to get the average envelope.)
- 2012-04-22 17:04:56下载
- 积分:1
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DSN
dynamic spectrum network simulation
- 2012-10-10 20:53:27下载
- 积分:1
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DSP-LMS.txt
在DSP实现自适应均衡器的程序,LMS算法,对于学习MATLAB有一定用处。(Adaptive equalizer in the DSP program, LMS algorithm, MATLAB has some use for learning.)
- 2011-05-11 15:25:49下载
- 积分:1
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backstepping-control
设计了柔性机器人的反演控制,并进行仿真分析。柔性机械臂的动力学方程具有高度非线性、强耦合以及时变等特点。(nversion control of flexible robot design and simulation analysis. Dynamic equations of flexible manipulator is highly nonlinear, strong coupling and time-varying characteristics.)
- 2014-12-04 09:38:28下载
- 积分:1
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Applied-Numerical-Mathematics-code
Applied mathematical computation demonstration using matlab coding laboratory excercises
- 2014-02-04 20:10:04下载
- 积分:1
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jisuan
用MATLAB的GUI设计的一个计算器程序,可在次基础上形成更复杂的算法,并学习GUI的设计技巧!(Using MATLAB)
- 2008-05-29 16:10:17下载
- 积分:1
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HaarFeaturesNo
这个是用来计算Haar-like特征数目的,用MATLAB求的某一个矩形特征的数目(This is used to calculate the number of Haar-like features, with the MATLAB find a certain number of characteristics of a rectangular)
- 2010-12-15 22:49:49下载
- 积分:1
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TheResearchofSpatialSpectrumEstimationAlgorithminS
智能天线技术是第三代移动通信系统的关键技术之一,也是国内外热门的研究课题。由于无线移动通信的信道传输环境具有复杂性和不确定性,存在多径衰落和时延扩展,因此造成了符号间串扰、同信道干扰、多址干扰等,这些干扰降低了链路性能和系统容量,智能天线技术是解决以上问题的方法之一。 本文首先阐述了智能天线和白适应波束形成的基本理论,然后对自适应算法进行了研究。对一些基本的自适应算法最小均方算法、恒模算法及递推最小均方算法进行了分析讨论,用计算机仿真的结果论证了算法的性能。针对相干干扰介绍了空间平滑技术,对传统的相干干扰抑制方法-空间平滑法进行了分析,采用改进算法有效降低了空间平滑算法的运算量。对信号波达方向(DOA)的估计是智能天线研究的另一关键问题。第四章在介绍了阵列信号处理方法的基础上,先简单介绍了Bartlett、Capon、MUSIC等空间谱估计算法,分析了信源数目过估计与欠估计情况下的MUSIC算法性能,提出一种改进算法,在信源数目有误差的情况下该算法的性能良好。第五章针对多径干扰环境,在分析MMUSIC算法的基础上,本文提出了基于低秩矩阵逼近法的改进MUSIC算法(In this paper, firstly, the author illustrates the principles of smart antenna and adaptive beam forming, and then introduces some typical adaptive algorithms, the LMS ,CMA and RLS algorithms are analyzed and discussed and simulate them in the computer to prove their capability. but they have the disadvantage of high complexity, so they are not fit for practice. The paper analyses the conventional method rejecting spatial smoothing coherent interfering signals, which is spatial smoothing technique)
- 2009-07-02 22:43:06下载
- 积分:1