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decode_tuyang
资料中包含利用校验子(错误图样)译码的原理、编码流程图以及matlab的编码,程序中配有注释,通俗易懂。(Information contained in the use of sub-parity (error pattern) decoding principle, flow charts and coding matlab code, the program with notes, easy to understand.)
- 2013-11-25 19:23:17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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水印matlab程序
说明: 有多个文件 可以根据文件名和注释进行选择 提取算法可以根据嵌入算法 自行写出 提供了较好的抗压缩和抗剪切的效果(a number of documents under the file name and choose Notes extraction algorithm can write their own algorithms embedded mention for a better compression and anti-shear effect)
- 2006-01-11 11:23:42下载
- 积分:1
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chp
Transient stability analysis of distribiuted system with DG
- 2013-02-27 02:55:47下载
- 积分:1
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ODE
定步长ODE4、ODE5算法,用法和ode45相似
唯一不同的就是ode45是[t,y]=ode45(),
这个是y=ode4(),因为是定步长的(Fixed-step ODE4, ODE5 algorithms, usage, and the only difference is similar to ode45 ode45 is [t, y] = ode45 (), this is y = ode4 (), because the step length is fixed)
- 2011-10-06 15:42:13下载
- 积分:1
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PSO改进粒子群算法优化BP神经网络的权值,建立BP神经网络
改进粒子群算法优化BP神经网络的权值,建立BP神经网络(Improved PSO algorithm optimizes the weights of BPneural networks to establish the neural networks.)
- 2015-10-05 09:54:26下载
- 积分:1
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sampleandrebuildofcontinoussignal
连续信号的采样与重构,主要说明信号采样与重构程序(continuous signal sampling and Reconstruction, the main note signal sampling procedures and Reconstruction)
- 2007-05-11 20:00:19下载
- 积分:1
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data-preprocessing-
第三章:数据预处理,将不规则分布的测网经过插值转换为规则网的处理。(Chapter III :data preprocessing,Converts irregular distribution of measuring net after interpolation rule network processing.)
- 2015-04-15 11:47:26下载
- 积分:1
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wjy1
实现雷达系统中7位巴克码的调相信号的回波接收系统的matlaB程序(Radar system seven Barker code modulation signal receiving system matlaB echo procedures)
- 2011-01-17 20:11:19下载
- 积分:1
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watermark
用matlab编写的数字音频水印算法,包括嵌入、攻击、提取(Using matlab digital audio watermarking algorithms, including embedding, attack, extraction)
- 2011-11-25 15:06:36下载
- 积分:1