-
FluidPipelineSimulinkModels
These Simulink blocks contain transfer functions that model the pressure and flow transients for axisymmetric 2D viscous flow of a compressible fluid in a straight rigid circular cross section pipelines. Three models are available:
(1) pressures at the ends
(2) flow rates at the ends
(3) pressure at one end and flow rate at the other
Filtering is incorporated to reduce numerical oscillation (Gibbs phenomenon). See J. Dyn. Systems, Meas. & Control vol 122 (2000) pp. 153-162.
- 2007-11-27 00:31:46下载
- 积分:1
-
pf_colortracker
Particle filter object tracking with matlab
- 2010-10-02 14:55:38下载
- 积分:1
-
convolution
本算法针对盲源分离卷积算法,可以直接使用,效果很好(The convolution algorithm for blind source separation algorithm can be directly used with good results)
- 2010-06-17 12:14:42下载
- 积分:1
-
wavelet
此程序用提升法实现第二代小波变换
用的是非整数阶小波变换
采用时域实现,步骤先列后行
正变换:分裂,预测,更新;
反变换:更新,预测,合并
只做一层(可以多层,而且每层的预测和更新方程不同)(This procedure achieved by lifting the second generation wavelet transform with a non-integer order wavelet transform time-domain realization of transformation steps, then over are: split, predict, update inverse transform: Update, forecasting, consolidation only a layer of ( can be multi-layer, and each prediction and update equations are different))
- 2010-09-27 10:33:43下载
- 积分:1
-
TAODV
说明: AODV的改进算法的matalb仿真,绝对跑得出,我这里还有论文(Improved algorithms matalb AODV simulation, the absolute run out, I have here papers)
- 2011-03-28 17:13:31下载
- 积分:1
-
sinskalman
一段关于捷联惯导系统卡尔曼滤波的Matlab仿真程序,(Paragraph on the SINS Kalman filter Matlab simulation program,)
- 2012-06-08 12:27:18下载
- 积分:1
-
yuanma
基于蚂蚁群算法的三维路径规划。有实例,可以运行。(3-D path planning algorithm based on ant colony.)
- 2013-04-15 09:09:05下载
- 积分:1
-
Example_rectangular-waveguide_2D
二维矩形波导电磁波传播,Matlab程序,实习时编写!(Two-dimensional rectangular waveguide electromagnetic wave propagation, Matlab procedures, internship writing!)
- 2013-12-16 12:31:04下载
- 积分:1
-
heidary
this file is about risk managment in marketing....
- 2013-05-25 13:43:16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