说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 束传播法
1)  beam propagation method
束传播法
1.
In the case of waveguide-to-fiber coupling and fiber-to-waveguide coupling,a sequence of short straight waveguides has been modeled to approximate the 3-dimensional tapered waveguide; and the unstable incident and reflected fields,as well as their derivatives,were determined by the beam propagation method(BPM).
分别对波导_光纤耦合、光纤_波导耦合两种情况 ,将三维楔脊形波导等效为多段短的直波导 ,利用束传播法同时对三维楔脊形波导内不稳定的入射、反射场 ,及它们在传播方向上的偏导进行处理 ,再用自由空间辐射模法计算透射率和反射率 。
2.
The characteristics of the SSC are analyzed by using a three-dimensional beam propagation method.
采用三维束传播法分析了该器件的光波特性,优化了器件参数,数值结果表明该SSC有很高的耦合效率。
2)  beam propagation method
光束传播法
1.
The beam propagation method was employed to simulate and design the novel optical attenuator.
现采用光束传播法(BPM)对设计的新型光衰减器进行了仿真设计,结果表明,设计的光衰减器具有大的动态可调衰减范围(45。
2.
The beam propagation method (BPM) is used to simulate and optimize the design and input output characteristics.
应用光束传播法给出了弧形波导全光开关的输入、输出开关特性以及优化设计结果。
3.
Using the wide angle finite difference beam propagation method,the influences of waveguides pa- rameters on the bend loss of three generally used S-shaped waveguide bends fabricated by APE technology are analyzed.
对2种不同切型的3种常用S形弯曲质子交换光波导,利用宽角有限差分光束传播法进行了分析。
3)  BPM
光束传播法
1.
The numerical results obtained from modified overlap method are compared to the ones obtained from BPM method.
提出了一种修正的重叠积分方法用以计算阵列波导光栅 (AWG)波分复用器件中光从自由传输区域到阵列波导的耦合系数 ,并和光束传播法 (BPM)数值方法计算得到的结果做了比较 通过比较分析 ,得出结论 :当波导中心距不是太小时 ,用修正重叠积分这一快速方法是合适
4)  Beam propagation method
束传播方法
5)  propagating beam method
束传播法(PBM)
6)  constraint propagation algorithm
约束传播算法
1.
To explain how to use the heuristics information of the problem to construct constraint-based solving algorithm,the general constraint satisfaction solving technology was briefly introduced,then the principles and the applicability of constraint propagation algorithm,tree search algorithm and heuristics repair algorithm for Job Shop scheduling were summarized.
为了说明如何利用启发式信息构造车间调度的约束满足求解算法,首先概述了常规约束满足求解技术,进而介绍了车间调度问题的约束传播算法、树搜索算法和启发式修复算法的构造原理及适用性。
2.
Feasibility of combining the conventional algorithms with the constraint propagation algorithm in sensor placement is studied.
探讨了传统求解方法与约束传播算法结合求解的可能性。
补充资料:反向传播法
分子式:
CAS号:

性质:又称逆推学习算法,简称BP算法,是1986年鲁梅哈特(D. E. Rumelhart)和麦克莱朗德(J. L. McClelland)提出来的。用样本数据训练人工神经网络(一种模仿人脑的信息处理系统),它自动地将实际输出值和期望值进行比较,得到误差信号,再根据误差信号从后(输出层)向前(输入层)逐层反传,调节各神经层神经元之间的连接权重,直至误差减至满足要求为止。反向传播算法的主要特征是中间层能对输出层反传过来的误差进行学习。这种算法不能保证训练期间实现全局误差最小,但可以实现局部误差最小。BP算法在图像处理、语音处理、优化等领域得到应用。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条