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beam
MATLAB声呐图像特征提取与显示,基于线型特征提取,得到声呐的图像提取点云图像。(MATLAB sonar image feature extraction and display, based on linear feature extraction, image extraction obtained sonar point cloud image.)
- 2021-04-16 14:58:53下载
- 积分:1
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numerical_analysis_homework
(有源代码)数值分析作业,本文主要包括两个部分,第一部分是常微分方程(ODE)的三个实验题,第二部分是有关的拓展讨论,包括高阶常微分的求解和边值问题的求解(BVP).文中的算法和算例都是基于Matlab计算的.ODE问题从刚性(STIFFNESS)来看分为非刚性的问题和刚性的问题,刚性问题(如大系数的VDP方程)用通常的方法如ODE45来求解,效率会很低,用ODE15S等,则效率会高多了.而通常的非刚性问题,用ODE45来求解会有很好的效果.从阶次来看可以分为高阶微分方程和一阶常微分方程,高阶的微分方程一般可以化为状态空间(STATE SPACE)的低阶微分方程来求解.从微分方程的性态看来,主要是微分方程式一阶导系数大的时候,步长应该选得响应的小些.或者如果问题的性态不是太好估计的话,用较小的步长是比较好的,此外的话Adams多步法在小步长的时候效率比R-K(RUNGE-KUTTA)方法要好些,而精度也高些,但是稳定区间要小些.从初值和边值来看,也是显著的不同的.此外对于非线性常微分方程还有打靶法,胞映射方法等.而对于微分方程稳定性的研究,则诸如相平面图等也是不可缺少的工具.值得提出的是,除了用ode系类函数外,用simulink等等模块图来求解微分方程也是一种非常不错的方法,甚至是更有优势的方法(在应用的角度来说).((Source code) numerical analysis homework, this docment includes two parts, the first is ordinary differential equations (ODE) of the three examples, the second part is about the expansion of the discussion, including the higher-order ordinary differential & boundary value solution Problems (BVP). the text of the algorithm and numerical examples are based on the Matlab. ODE from the rigid (STIFFNESS) look into the issue of non-rigid and rigid problem, rigid problems (such as large coefficient VDP equation) such as using the always method ODE45 used to solve the problems , efficiency will be low, with ODE15S the other hand, many of the high efficiency. and the usual problem of non-rigid, there will be used to solve ODE45 very good results. Judging from the order can be for high-order differential equations and first-order ordinary differential equations, higher-order differential equations can be transformed into a general state space (STATE SPACE) used to solve the low-order different)
- 2009-03-16 09:06:09下载
- 积分:1
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HysteresisSVPWM03
SVPWM的实现,调试通过.对输入波形的跟踪非常精确,THD小于0.2 .本来作为APF中替代滞环比较用的.(SVPWM implementation, debugging through. On the input waveform of the tracking is very accurate, THD less than 0.2 . Have been replaced as the APF Hysteresis in use.)
- 2010-09-08 13:41:47下载
- 积分:1
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pocklington_radiation
说明: 基于matlab的天线散射程序,计算其表面的感应电流 很实用的(Antenna scattering procedure based on matlab to calculate the surface of the induced current is very useful)
- 2010-04-13 11:13:50下载
- 积分:1
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cogenerazione_fun
cogeneration function, plot costs, combustible mass, user needs
- 2011-06-24 16:51:38下载
- 积分:1
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zhongxin
运动目标区域重心点的横坐标、在matlab中实现 纵坐标计算(Moving target area center of gravity of the abscissa, ordinate calculation)
- 2012-05-29 20:54:19下载
- 积分:1
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Matlab6[1](PDF)
认识matlab
学习理解matlab
学习它的使用(Matlab awareness study and understand the study and its use matlab)
- 2008-04-03 08:17:35下载
- 积分:1
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EEGLAB-study
说明: EEGLAB学习资料,对出学习和有很大的帮助,希望对你有用(EEGLAB learning materials, on the study and a great help, I hope useful to you)
- 2011-02-24 11:18:24下载
- 积分:1
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session6
金融学牛顿科兹求积分的方法的应用,证券投资组合的选择(Newton-Cotes formulas,Portfolio choice.)
- 2014-01-15 14:48:55下载
- 积分:1
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Zfund_tutorial5b
Matlab tutorial part 5 for beginners
- 2011-01-08 01:23:46下载
- 积分:1