-
matlab_random_function
matlab相关随机过程函数,产生随机数等等(matlab random process related to function, generate random numbers and so on)
- 2009-02-14 00:16:04下载
- 积分:1
-
work
this is a matlab code for zooming image
- 2010-03-02 12:37:07下载
- 积分:1
-
audio
the matlab codes for sampling audio file and filtering it.
- 2011-01-25 16:27:33下载
- 积分:1
-
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
-
Computational-Colour-Science-MATLAB
Computational Colour Science Using MATLAB - Stephen Westland & Caterina Ripamonti(Computational Colour Science Using MATLAB- Stephen Westland & Caterina Ripamonti)
- 2013-09-13 20:13:53下载
- 积分:1
-
xibaobianyuanjiance001
细胞边缘检测,带测试图片,matlab实现,效果不错(Cell edge detection, with the test picture, matlab achieved good results)
- 2007-11-22 16:26:39下载
- 积分:1
-
16QAM1
16 QAM modulation mfile
- 2010-10-23 03:39:23下载
- 积分:1
-
QPSK
对原始信号进行四相相移键控调制,然后加入高斯白噪声,对加噪信号进行解调,对比解调信号与原始信号,计算误码率(The original signal quadrature phase shift keying modulation, and then adding Gaussian white noise, plus noise signal is demodulated, comparing the demodulated signal with the original signal, bit error rate calculation)
- 2014-01-01 12:07:09下载
- 积分:1
-
software-for--Astrodynamics
非常有用的卫星轨道参数计算模块,很方便进行轨道特性分析。(This is a very useful toolbox for satellite s trajectory parameter computation )
- 2014-02-18 13:47:24下载
- 积分:1
-
遗传算法
说明: 遗传算法在无功优化的应用,电力系统潮流计算(Application of genetic algorithm in reactive power optimization)
- 2019-03-02 14:31:19下载
- 积分:1