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AFD
光伏并网发电系统有源频率漂移孤岛检测法(AFD)(active frequency drift(AFD) island detection method of photovotaic grid-connected generation system)
- 2010-07-06 15:12:32下载
- 积分:1
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Matlab-Learning-materials
matlab学习资料,常用函数的使用,适合初学者和常用matlab工作者下载学习。(matlab learning data, the use of commonly used functions, suitable for beginners and commonly used matlab workers to download the study.)
- 2013-04-05 12:45:57下载
- 积分:1
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jojo
this is a simulink program tat simulates a an iduction motor being controlled via a converter and has a load that consists of an elevor load and a counterweight
- 2011-12-27 00:08:08下载
- 积分:1
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nnbp_pid
BP神经网络PID S函数,可用于Simulink仿真。(BP NN PID S-fuction)
- 2014-06-13 20:52:58下载
- 积分:1
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Plaw
一维数据的分形参数分析,通过功率谱函数拟合的方式,获取反映数据分形特征的参数(fractal analysis of 1d data)
- 2009-10-22 19:36:37下载
- 积分:1
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medianfilter
design of median filter to remove noise
- 2010-10-16 13:04:11下载
- 积分:1
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quasi45
this is matlab program for showing the result of quasi ostbc
- 2013-09-11 09:59:23下载
- 积分:1
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focuss
稀疏恢复算法FOCUSS,详细内容,文章中有详细的编程步骤(Sparse recovery algorithm FOCUSS, details, the article detailed programming steps)
- 2014-07-18 16:42:25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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xtimesy
visual c++和matlab结合的例子程序(visual c++ and Matlab combination of example programs)
- 2005-08-21 14:54:07下载
- 积分:1