ID 原文 译文
13434 研究结果对理解极区夏季中层回波(polar mesopause summer echoes, PMSE)的物理机制具有重要的意义。 The results obtained in this paper are of great significance for understanding the physical mechanism of polar mesosphere summer echoes(PMSE).
13435 基于时域有限差分(finite-difference time-domain,FDTD)法和传输线方程,并结合插值技术,研究了一种高效的时域混合算法,能够快速模拟电磁波照射自由空间和屏蔽腔内双导体传输线的电磁耦合,并实现空间电磁场与双导线瞬态响应的同步计算。 This paper presents an efficient hybrid method consisting of finite-difference time-domain(FDTD) method, transmission line(TL) equations, and interpolation techniques for the coupling analysis of double conductor lines located in free space and shielded cavity excited by ambient electromagnetic wave rapidly, which can realize the synchronous computations of electromagnetic fields and transient responses on the lines.
13436 该算法先采用FDTD方法模拟双导线周围空间的电磁场分布,结合插值技术构建适用于双导线电磁耦合的传输线方程,再采用FDTD的中心差分格式进行离散,从而求解得到传输线和端接负载上的瞬态响应。 The FDTD method is used to compute the electromagnetic fields surrounding the double lines, and the TL equations applied for the coupling of double conductor lines can be build based on the interpolation techniques. Then the scheme of FDTD method is utilized to discrete the TL equations to obtain the transient responses on the lines and terminal loads.
13437 同时,分析双导线间距对其电磁耦合的影响,掌握其耦合规律。 Meanwhile, the influence of the distance between the double transmission lines on the responses of the lines is analyzed to master the coupling rules of the lines.
13438 通过相应数值算例的模拟,并与FDTD方法进行对比,验证了该时域混合算法的正确性和高效性。 The accuracy and efficiency of this hybrid method are verified by comparing with the FDTD method via two cases.
13439 基于高性能计算的电磁数值模拟在目标电磁散射特性分析中发挥着越来越重要的作用。 The electromagnetic numerical simulation based on high performance computing gains more and more attention in analyzing the electromagnetic scattering characteristics of targets.
13440 由于任一种数值方法都有一定的适用范围,不能高效处理所有问题，因此,有必要发展和集成多种数值方法,形成能够为不同类型问题的雷达散射截面(radar cross section, RCS)计算提供高效解决途径的软件系统。 Since each method has its own advantages and disadvantages, and there is no one method which can deal with all problems, it is necessary to develop multi approach for integrating the software system, which can provide efficient means to analyze the electromagnetic scattering characteristics of different targets.
13441 文中在并行自适应结构/非结构网格应用支撑软件框架之上，充分考虑数值方法的可扩展性以及物理个性的可分离性,通过基于机理、数据的混合可计算建模和接口设计,以及算法的模块化开发,发展了多种用于RCS计算的数值方法,并将其集成到高性能电磁数值模拟软件系统JEMS中。 Considering scalability of algorithms and separability of physical characteristics, based on parallel adaptive structured/unstructured mesh applications infrastructure, several numerical methods are developed and integrated into the electromagnetic numerical simulation software system, JEMS, with studying computable modeling, interface design and modularized realization of algorithms.
13442 数值算例表明了JEMS具有高效分析多种目标电磁散射特性的能力,并在大规模并行计算方面具有显著优势. Some numerical examples illustrate JEMS has the capability in efficient solving the radar cross sections of different targets, and has advantages in large-scale parallel computing.
13443 极化雷达可以直接测量出雷达目标的2×2散射矩阵信息,与传统雷达相比,极化雷达的突出优点在于测量数据包含的信息量远大于传统雷达,因而在很多领域都获得了重要应用。 A polarimetric radar can be used to obtain the 2×2 scattering matrix information of radar target. Comparing with conventional radars, the polarimetric radar has an advantage that its measured target information is much larger, and it has some important applications in many fields.