ID 原文 译文
18055 大机动条件下的曲线轨迹大斜视SAR系统传递函数具有复杂的多维空变性,现有的高效频域回波模拟算法均难以实现扩展场景的高精度回波模拟。 The system transfer function of high-squint SAR system with curved trajectory has complex multi-dimensional spatial variability. The existing efficient frequency-domain echo simulation algorithms are difficultto achieve high-precision echo simulation of extended scenes.
18056 为此,该文提出一种基于子孔径Keystone变换的机动SAR回波模拟方法。 Therefore, a fast echo simulation method based onsub-aperture Keystone transform is proposed for maneuvering SAR.
18057 该方法根据距离徙动校正后的距离压缩函数对场景的距离压缩回波进行快速模拟,然后通过高精度的距离向逆处理实现扩展场景的回波模拟。 Based on the time-domain range compression function after range cell migration correction, the method calculates efficiently the range compression echo of scene, and then realizes the echo simulation of extended scene by high precision range inverse processing.
18058 为减少残余距离徙动对回波模拟精度的影响,距离向处理过程中采用子孔径Keystone变换的方法实现空变距离徙动的精确校正。 In order to reduce the influence of residual range cell migration on the accuracy of echosimulation, the method of the Keystone transform of sub-aperture is used in range processing to achieveaccurate correction of space-variant range cell migration in extended scenes.
18059 理论分析和仿真结果表明,所提方法能够快速高精度地模拟扩展场景的机动平台大斜视SAR原始回波数据。 The theoretical analysis andsimulation results show that the proposed method can quickly and accurately simulate the original echo data ofextended scenes for high-squint SAR mounted on a maneuvering platform.
18060 虚拟网络的映射策略影响弹性光网络(EON)资源可用性和网络生存性。 The mapping strategy of virtual network has important effect on the resource availability and survivability of the Elastic Optical Network (EON).
18061 该文提出一种基于节点间距离和频谱离散度感知的虚拟光网络生存性协同映射(CM-DSDA)算法,研究节点计算资源和拓扑位置中介性的光节点排序策略,设计频谱离散度方法评价链路频谱碎片化程度。 A survivable virtual optical network Coordinated Mappingbased on the Distance and Spectrum Dispersion Awareness (CM-DSDA) between nodes is proposed in thepaper. A physical node weighted sorting strategy is studied, which not only considers the number of physicalnode computing resources, but also considers the location centrality of the physical nodes in the EON topology.And a method of spectrum dispersion is designed to evaluate the link’s spectrum fragmentation.
18062 在虚拟链路的生存性映射中,选择邻接已映射节点中消耗频隙数少且频谱离散度低的工作光路和保护光路协同映射虚拟网络。 During the virtual link’s survivability mapping, the working and protection optical paths adjacent the position of the mapped physical nodes with the minimum number of spectrum usage and the lowest frequency spectrum dispersion are selected to coordinated mapping the virtual optical networks.
18063 仿真结果表明所提算法能有效地提高EON的频谱占用率和减少带宽阻塞率。 Simulation results show that the CM-DSDA can effectively increase the EON’s spectrum utilization and reduce bandwidth blocking probability.
18064 攻击路径发现是自动化渗透测试领域的重要研究方向。 Attack path discovery is an important research direction in automated penetration testing area.