ID 原文 译文
13634 针对传统矩量法在处理具有较多未知量的理想导体粗糙海面电磁散射问题时对计算机内存的需求过大, 耗时过长的缺陷。 More memory requirements and more time-consuming in simulating the electromagnetic (EM) scattering from a one dimensional (1 D) perfectly electric conductor (PEC) rough sea surface with larger unknowns through the method of moments (MoM).
13635 文中引入了特征基函数法, 并根据Foldy-Lax多径散射方程构造特征基函数, 首先只考虑离散子域本身的自相互作用构造主要特征基函数, 然后考虑各离散子域间的互耦效应构造次要特征基函数。 To solve this problem, the characteristic basis function method (CBFM) is introduced in this paper, and the Foldy-Lax multiple scattering equations are applied to generate the characteristic basis functions (CBF).
13636 仿真结果表明了本文所采用的算法能够在保证计算精度的前提下, 减少计算时间, 并能够通过离散子域尺寸的选取控制实际操作矩阵的维数。 From the numerical simulations, it is obviously found that the proposed algorithm costs less time than the traditional MoM, thus can control the dimension of the operation matrix.
13637 为了分析水下金属壳体目标的散射场, 提出了一种基于移位算子时域有限差分方法的加速计算方法。 In order to analyze the scattering fields of an underwater metal shell target, we propose a novel accelerating computation algorithm based on the shift operator finite difference time domain (FDTD) method for solving the case of a lossy dispersive medium.
13638 利用该方法对海水、空气和金属三种媒质材料进行了建模, 并计算了水下金属椭球状壳体目标低频散射场的空间分布和起伏海面对低频电磁波传播的影响。 The spatial distribution of underwater low frequency scattering fields of a hollow metal ellipsoid and the propagation properties of the low frequency electromagnetic wave across the rough sea surface are considered by the proposed method.
13639 通过数值算例测试了所提方法的加速性能, 可以得到接近线性的加速比和95%以上的加速效率。 For testing the acceleration performance, we obtain close linear speedup and get an acceleration efficiency of more than 95% through numerical cases.
13640 计算结果表明, 海面会影响水下壳体目标散射场的空间分布, 特别是对于电场的空间分布影响比较大, 并且由于水下电导率的存在导致海面上方散射场的传播速度要比海面下方的快。 By calculating the radiation fields of an underwater electric dipole, it is shown that the results of the proposed method agree well with those analytic results. Numerical results show that the sea surface affects the spatial distribution of the scattering fields, especially the spatial distribution of electric field. Moreover, we get the propagating velocity of scattering fields which is faster above the sea surface than that below the sea surface.
13641 为建立通信装备在多源连续波辐射下辐射效应的预测模型并提出评估方法, 研究通信装备带内阻塞干扰。 In order to establish the prediction model for the radiation effect of communication equipment under the multi-source continuous wave radiation condition, the evaluation method is put forward, and the jamming of the communication equipment is studied.
13642 以我军现役某型超短波电台为试验对象, 根据高频电子线路推导了评估模型, 搭建了干扰效应试验平台, 并对评估模型进行实验验证。 Based on the general electric field theory, a kind of ultra-short wave military radio station is used as experiment object, the evaluation model is derived based on general electromagnetic field theory, the interference effect test platform is set up, and the evaluation model is verified through the experiment.
13643 实验结果证明：通信电台在多源连续波辐照下, 是否发生阻塞干扰与等效场强和峰值场强敏感指数有关;可以通过对比数个敏感指数与1的大小关系, 对通信电台多源连续波辐照效应进行预测。 The experimental results show that the internal obstruction interference is related to the equivalent field strength and the peak field strength sensitivity index under the condition of multi-source continuous wave radiation. The multi-source continuous wave irradiation effect can be predicted by comparing several sensitive indexes with 1.