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functionz
说明:
在三次样条中,要寻找三次多项式,以逼近每对数据点间的曲线。在样条术语中,这些数据点称之为断点。因为,两点只能决定一条直线,而在两点间的曲线可用无限多的三次多项式近似。因此,为使结果具有唯一性。在三次样条中,增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数,使其在断点处相等,就可以较好地确定所有内部三次多项式。此外,近似多项式通过这些断点的斜率和曲率是连续的。然而,第一个和最后一个三次多项式在第一个和最后一个断点以外,没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法,也是函数spline所采用的方法,就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。
(the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There)
- 2006-03-15 21:19:29下载
- 积分:1
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basic-pso-code
PSO基本算法 实现30维的球形函数的优化求值(fundermental algorithm of PSO)
- 2012-03-24 19:04:12下载
- 积分:1
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Sonar_Exp_1_3
声纳技术 常用水声信号及其处理方法 内容:1)CW信号;2)LFM;3)谱分析;4)自相关 (Sonar technology)
- 2020-12-23 10:09:08下载
- 积分:1
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DVhop
说明: 运用DV-Hop算法实现无线传感器的覆盖;(Use DV-Hop algorithm to achieve wireless sensor coverage;)
- 2020-12-18 15:51:42下载
- 积分:1
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GA
说明: 一个动态遗传算法代码 matlab的,采用全方位的两点杂交、两点变异的改进的加速遗传算法(IAGA)(A dynamic genetic algorithm matlab code, the use of comprehensive two hybrid, two variations of improved accelerating genetic algorithm (IAGA))
- 2010-05-18 10:35:45下载
- 积分:1
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41695073double-fedmachine
vector control double fed induction machine
- 2011-05-14 18:38:46下载
- 积分:1
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zantaifenxi
电力系统暂态分析仿真实例,参考用户手册实例而做(Power system transient analysis and simulation examples, reference examples and make the user manual)
- 2011-06-20 15:36:19下载
- 积分:1
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SARrawdata
根据矩阵中的高度数据,通过SAR点目标成像算法的逆过程,将高度数据转换为实际从飞机上采集的SAR原始数据,可以用于SAR成像仿真,SAR动目标检测等等(According to the height data in the matrix, the height data is converted into the SAR original data collected the aircraft by the inverse process of the SAR target imaging algorithm, which can be used for SAR imaging simulation, SAR moving target detection and so on.)
- 2021-03-12 10:39:25下载
- 积分:1
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weighted_total_least_squares_approximation
The toolbox solves a variety of approximate modeling problems for linear static models. The model can be parameterized in kernel, image, or input/output form and the approximation criterion, called misfit, is a weighted norm between the given data and data that is consistent with the model. There are three main classes of functions in the toolbox: transformation functions, misfit computation functions, and approximation functions. The approximation functions derive an approximate model from data, the misfit computation functions are used for validation and comparison of models, and the transformation functions are used for deriving one model representation from another.
KEYWORDS: Total least squares, generalized total least squares, software implementation.
- 2008-08-03 14:59:07下载
- 积分:1
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beibaoPSO
这份源代码是用粒子群算法解决0/1背包问题,可以正常运行。(The source code is the particle swarm algorithm to solve 0/1 knapsack problem, it works.)
- 2010-05-18 18:57:57下载
- 积分:1