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ebp3
神经网络使用例子,主要用于图像数据处理以及数据挖掘(Neural Network examples)
- 2009-04-28 00:49:32下载
- 积分:1
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firmas
clasificacion de firmas
- 2009-11-25 08:41:37下载
- 积分:1
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02
DOA估计与阵元数关系的MUSIC程序,可完成MATLAB的波形仿真。(DOA estimation the the MUSIC program relationship with the number of array elements, to be completed by MATLAB waveform simulation.)
- 2013-05-13 17:42:19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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cexiang
通过侧向的定位方法,这对无源定位跟踪的学者十分有用(Through the lateral positioning method, which the scholars of passive location and tracking is useful)
- 2021-04-01 18:19:08下载
- 积分:1
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Pso
模拟一群鸟捕食的情景,从而达到优化目标函数的目的,这就是粒子群算法!起初在可行的空间中随机的产生一群粒子,然后让每个粒子开始在虚拟的空间中向四面八方飞翔,并且每个粒子都记下他们飞过的适应值(也就是目标优化函数)最高的点,而且整个粒子群有一个最高适应值个体,这样,粒子在飞翔的时候尽量朝向自己曾飞过的最好的点和集体的最好的点。最后达到收敛到近似最优点的目的。
(Simulation of a group of birds preying on the scene, so as to achieve the purpose of optimizing the objective function, that is, PSO! At first, where feasible, have a space in a group of random particles, and then let the beginning of each particle in a virtual space to fly in all directions, and each particle they have in mind over the fitness value (that is objective optimization function) the highest point , and the whole particle swarm adaptation has a maximum value of the individual, so that particles in the fly when he had flown as far as possible towards the best point and collective best point. Finally reaching the merits of convergence to approximate most purposes.)
- 2007-10-24 14:45:05下载
- 积分:1
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FDTD_3_2
Sullivan关于FTDT经典文章的MATLAB翻译,第三章第二个例子的源程序。(Sullivan article on FTDT classic MATLAB translation of Chapter III of the second example of the source.)
- 2010-01-08 22:32:12下载
- 积分:1
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Gabor-and-histogram-features
gabor变换和直方图特征的 图像匹配算法 及其比较(Gabor transform and the histogram image matching algorithm and its characteristics of the comparison)
- 2012-04-24 12:38:13下载
- 积分:1
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IntroToGPIF
GPIF的详细介绍啊,里面有一些使用的例子。很不错的文档资料(A detailed description of GPIF ah, there are some use examples. Very good documentation)
- 2007-11-23 10:11:39下载
- 积分:1
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QPSUBP
利用光滑牛顿法求解二次规划子问题,以下为代码(Smooth Newton method using quadratic programming sub-problems, the following code)
- 2011-09-06 13:11:18下载
- 积分:1