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PDEMatlab
这是偏微分方程在图像处理中的应用一书的配套光盘,非常好的东东哦(This is a partial differential equations in image processing applications supporting CD-ROM book, very good stuff oh)
- 2010-06-20 12:01:39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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NN
说明: zero sequence caliculation
- 2009-05-08 21:04:29下载
- 积分:1
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MATLAB_useful
这本matlab简单易懂,非常适合初学者,我就是看的这本教程才学会的、(This matlab straightforward, very suitable for beginners, I just look at this tutorial was learned,)
- 2014-02-24 23:10:28下载
- 积分:1
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CFAR-Detection-Threshold-
介绍了某型雷达的目标检测原理, 分析了噪声恒虚警处理中门限系数对目标检测的影响, 提出了一种基于噪声采样的门限系数确定方法, 最后在仿真计算的基础上验证了该方法的可行性。(The constant false alarm rate( CFAR) detection of radar signal plays an important role in radar signal
processing. The principle of object detection of a certain radar is introduced, the influence of threshold coeffi
cient on object detection is analysed, and a method to determin the threshold coefficient based on noise sampling
is proposed. Finally, the feasibility of the method is verified through simulation.)
- 2012-05-12 10:48:48下载
- 积分:1
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fsk-zishiying
发送CW编码脉冲,进行FSK编码,用自适应滤波器进行译码,经过仿真验证(CW sending coded pulses, FSK encoding and decoding using adaptive filters, through simulation)
- 2013-03-28 23:45:49下载
- 积分:1
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shuzhijisuan
该文档第一部分总结了matlab中的基本函数其表达式,编程以及范例。第二部分讲了如何插值拟合以及查表。里面有非常详细的解释,并且配有程序范例。(The first part of the document summarizes the basic function of matlab in its expression, programming, and example. The second part of the talk about how to fit and look-up table interpolation. There are very detailed explanation, and with a program example.)
- 2010-10-01 14:16:07下载
- 积分:1
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contourlet_toolbox
contourlet的工具箱,matlab和C代码(contourlet toolbox, matlab and C code)
- 2010-05-29 15:33:02下载
- 积分:1
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digital
延时微分方程离散化求根,用零阶保持器将延时微分方程离散化,然后求取其有限个根(delay differential equation descreted solving)
- 2012-05-20 13:56:14下载
- 积分:1
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56608
spectrum sensing in cognitive radio
- 2014-12-01 18:58:19下载
- 积分:1