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matlab7
一些关于matlab7的实用教程,对于初学者很有帮助,希望能帮你快速入门(matlab)
- 2010-05-14 17:04:22下载
- 积分:1
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fli1
门信号的波形及其频谱;付里叶变换的对称特性(Gate signal waveform and its spectrum Fourier transform symmetry properties)
- 2010-05-06 11:58:46下载
- 积分:1
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DateConvert
DateConvert:简单而快速的日期转换
DateConvert转换DATESTR(0)格式的日期向量或序列号和日期向后。
Matlab的DATENUM,DATEVEC和DATESTR接受各种不同意见,但结果他们是缓慢的。如果输入格式正是众所周知,转换可以更快:
DATENUM( 17 - 10 - 2009 11时08分23秒 ):2.97秒
DateConvert( 17 - 10 - 2009 11时08分23秒 , 号码 ):0.039秒
=>“1.3%(1000环,1.5GHz的奔腾- M的,利用Matlab 7.7)
DateConvert不*不*验证作为Matlab的日期函数输入日期:
DATEVEC( 32 - 2 - 2008 25:62:63 )的答复[2008 3 4 2 2 7]
DateConvert( 32 - 2 - 2008 25:61:67 , 载体 )的答复[2008 2 32 25 61 67]!
因此DateConvert几乎微不足道,但对速度进行了优化。我需要时间排序200 000邮票,并从217个减少到11秒的时间。
请运行单元测试TestDateVec检查的有效性和速度。
测试:利用Matlab 6.5,7.7,7.8,winxp的,32位。
纯Matlab代码,所以兼容性的MacOS,Linux操作系统,64位预期。
英语月份名称是必要的。(DateConvert: Simple but fast date conversion
DateConvert converts the DATESTR(0) format to a date vector or serial date number and backwards.
Matlab s DATENUM, DATEVEC and DATESTR accept a variety of inputs, but in consequence they are slow. If the input format is exactly known, the conversion can be much faster:
DATENUM( 17-Oct-2009 11:08:23 ): 2.97 sec
DateConvert( 17-Oct-2009 11:08:23 , number ): 0.039 sec
=> 1.3 (1000 loops, 1.5GHz Pentium-M, Matlab 7.7)
DateConvert does*not* validate the input date as Matlab s date functions:
DATEVEC( 32-Feb-2008 25:62:63 ) replies [2008 3 4 2 2 7],
DateConvert( 32-Feb-2008 25:61:67 , vector ) replies [2008 2 32 25 61 67] !
So DateConvert is nearly trivial, but optimized for speed. I needed it for sorting 200 000 time stamps and reduced the time from 217 to 11 sec.
Please run the unit-test TestDateVec to check validity and speed.
Tested: Matlab 6.5, 7.7, 7.8, WinXP, 32bit.
Pure Matlab code, so compat)
- 2010-07-05 11:59:46下载
- 积分:1
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rpeakdetect
R peak detect in ECG signal
- 2009-12-15 16:42:02下载
- 积分:1
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CR_simulink
认知无线电能量检测simulink模型,对新手会有一些帮助(Simulink model of cognitive radio energy detection, there will be some help for novice)
- 2010-12-24 10:16:25下载
- 积分:1
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metrix_uqi
This is an efficient implementation of the algorithm for calculating the universal image quality index proposed by Zhou Wang and Alan C. Bovik. Please refer to the paper "A Universal Image Quality Index" by Zhou Wang and Alan C. Bovik, published in IEEE Signal Processing Letters, 2001.
- 2011-05-28 15:30:39下载
- 积分:1
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cell
根据能量密度梯度对细胞图像及边缘进行加强。(According to the energy density gradient on cell image and edge enhanced.)
- 2014-10-05 22:41:25下载
- 积分:1
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chapter35
快乐;尽量客观进入了;计算;过节费;甲方公司价格;lsj(jkjl djjdjj djkkljf dkjkj kkljf dkkk sss ekkjl jk ekkklll ehehhe jjejj ee ee jkk ekkk )
- 2014-10-09 20:47:12下载
- 积分:1
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book
徐荣桥《结构分析的有限元法与Matlab程序设计》书。(Xu Rong bridge " structural analysis of the finite element method and Matlab programming" book.)
- 2013-10-24 15:55:07下载
- 积分:1
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GrayImageDenoising
this matlab code helps the image processing lerners to denoise grey images as well as other applications having denoising applications.
- 2014-01-19 14:05:56下载
- 积分:1