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way
matlab function extension
- 2009-09-20 19:54:35下载
- 积分:1
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matlabGAtoolbox
这是一个利用MATLAB遗传算法工具箱进行求函数最值的实际程序文档,对数学建摸及从事算法研究的人员具有很好的参考价值(This is a genetic algorithms using MATLAB toolbox function for the most value for the actual process documentation, mathematical modeling and algorithm engaged in the research staff has a good reference value)
- 2007-05-24 09:12:27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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OFDMwithwindowing
说明: OFDM加窗的matlab源码,主要用于降低峰均功率比(OFDM with windows matlab source, mainly used to reduce the PAPR)
- 2010-04-11 14:52:26下载
- 积分:1
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1
说明: 三相电压源型PWM整流器,采用了电压电流双闭环的控制策略(The three-phase voltage source PWM rectifier
)
- 2015-01-11 15:25:15下载
- 积分:1
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ar-kalman
LMS、LMS/DFT、LMS/DCT、卡尔曼滤波、AR谱分析和小波变换的程序(Program LMS, LMS/DFT, LMS/DCT, Kalman filtering, AR spectral analysis and wavelet transform)
- 2015-03-30 16:41:12下载
- 积分:1
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interp_eval
This file is written as if you are going to evaluate the error
between a pair of images that are presently coded as RGB data. The
initial calculation converts the RGB data to CIE XYZ data.
The calculations are similar if your images are coded as CMYK,
but you will need to convert from CMYK to XYZ instead of converting
from RGB to XYZ.
- 2012-11-29 22:00:07下载
- 积分:1
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phaseshifted-bragg-grating
matlab编程 通过设定参数,画出相移布拉格光栅反射谱及色散,反射谱和时延的图象(matlab programming by setting parameters, draw the phase shift image Bragg grating reflection spectrum and dispersion, reflection spectrum and delay)
- 2021-03-18 09:49:20下载
- 积分:1
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solver
解集机制之solver 详情见源代码。辛苦写的(The mechanism of the solver solution set details, see the source code. Hard to write)
- 2013-01-04 19:50:33下载
- 积分:1
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matlab_envelope-_code
信号包络求法,此法为hilbert变换和微分法的matlab源程序,有注释;(envelope curve calculation)
- 2013-01-22 17:28:21下载
- 积分:1