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gddemo
GDDEMO runs a little demonstration of gradient descent in Matlab. Launch Matlab, and type gddemo to get started.
- 2009-02-24 08:24:35下载
- 积分:1
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ofdm_fading
在通訊領域中基本頻率數位調變中之一之訊號fading之應用OFDM fading(OFDM fading)
- 2012-11-21 16:10:59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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11-tryGUI
System will automatically delete the directory of debug and release, so please do not put files on these two directory.
- 2011-04-23 08:25:38下载
- 积分:1
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RGB-cube
产生一个RGB立方图:R(红)-G(绿),R(红)-B(蓝),G(绿)-B(蓝)(Color model. Use Matlab to create six (6) color images of size 512×512 in
ppm format, each of which represents one of the six sides of the RGB color cube.)
- 2014-11-21 09:15:17下载
- 积分:1
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weatherwax_poularikas_solutions_manual
Adaptive filter using Matlab
- 2014-11-26 14:11:03下载
- 积分:1
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Gaussian
Gaussian filter implementation
- 2011-11-08 07:36:43下载
- 积分:1
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grabit
matlab code for GRABIT
- 2015-02-03 14:29:00下载
- 积分:1
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csd_of_communication_signals
循环谱检测算法仿真实例,内含三个文件,实现了多进制调制环境的四阶循环累量特征分析(Cyclic spectrum detection algorithm simulation example, contains three files, to achieve a multi-band modulation environmental characteristics of fourth-order cyclic cumulant analysis)
- 2013-07-11 10:03:54下载
- 积分:1
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Stehfest
this code used for stephest algorithm
- 2020-10-27 20:09:58下载
- 积分:1