ID |
原文 |
译文 |
22035 |
最后,仿真结果表明,PCOA 算法能够达到降低网络干扰和链路能耗,增大网络容量的目的。 |
Simulation results show that PCOA algorithm can reduce the interference and the energy consumption, which increases the network capacity. |
22036 |
该文针对现有的虚拟网络映射算法对网络中节点的拓扑属性考虑不够周到,导致其请求接受率和收益开销比较低的问题,将物理学里的场论思想引入了虚拟网络映射,并提出一种基于拓扑势的虚拟网络映射算法。 |
To improve the low acceptance ratio and revenue-cost ratio caused by the negligence of the topology attribute of the nodes in the existing virtual network embedding algorithm, the theory of fields in physics is introduced into the virtual network embedding, and a Virtual Network Embedding algorithm based on Topology Potential (TP-VNE) is proposed. |
22037 |
该算法在节点映射阶段,通过计算节点的拓扑势、节点的资源能力、待映射节点与已映射节点之间的距离,将虚拟节点映射至最佳的物理节点。 |
In the node embedding stage, the virtual node is embedded onto the optimal physical node by calculating the topology potential of the node, the resource capacity of the node, and the distance between the embedded nodes and the node to embed. |
22038 |
在链路映射阶段,通过计算物理路径的可用带宽和路径跳数,将虚拟链路映射至最佳的物理路径。 |
In the link embedding stage, the virtual link is embedded onto the best physical path by calculating the available bandwidth of the path and the hops of the path. |
22039 |
仿真实验表明,该算法在多种虚拟网络到达强度下的请求接受率和收益开销比均优于当前的虚拟网络映射算法。 |
Experimental results show that the proposed algorithm has the higher acceptance ratio and revenue-cost ratio compared with the existing virtual network embedding algorithm in all simulation conditions. |
22040 |
针对大斜视合成孔径声呐成像问题,该文推导了宽带大斜视条件下合成孔径声呐回波在径向和方位向 2维波数域中的波数谱的解析表达式,指出了 Stolt 插值需要解决的距离波数谱卷绕以及成像后距离向上目标的相对距离缩小等问题,给出了距离波数谱卷绕时的 Stolt 插值方法,提出了距离波数变标因子的概念,并通过在距离空域中补偿距离波数变标因子引起的距离变标的方法,解决了大斜视角条件下 Stolt 插值引起的距离变标问题。 |
Considering the problem of large squint synthetic aperture sonar imaging, the analytical expression of the wavenumber spectrum is analyzed in detail in the radial and azimuth wavenumber fields under the wide-band high-squint conditions. The spectrum winding and shrink in the distance wavenumber fields after the Stolt interpolation are pointed out, and the reduced relative distance between the target in the imaging result is also indicated, then the Stolt interpolation method for distance wavenumber spectrum winding is given. The concept of range wavenumber scaling factor is proposed, the method of compensating the scaling factor and the spectrum winding in the distance space are given. Finally, the problem of range scaling caused by Stolt interpolation under large oblique angle is solved by compensating the distance variable in distance space. |
22041 |
点目标仿真数据和模拟回波数据处理验证了该文方法的正确性和有效性。 |
Point object simulation data and simulated echo data processing verify the correctness and validity of the proposed method. |
22042 |
该文针对 2 维阵列波达方向估计问题,提出一种基于单快拍数据的分布式 2 维 DOA 估计算法。 |
An algorithm of Direction Of Arrival (DOA) estimation based on the single-snapshot data is proposed for distributed Two-Dimensional (2-D) array. |
22043 |
该算法首先利用每个子阵单元的单快拍数据进行 2 维 Hankle 矩阵构造; |
2-D Hankle matrixes are firstly constructed using the single observation of every subarray element. |
22044 |
然后基于 2 维状态空间平衡法分别获得方位角和俯仰角子阵单元内 DOA 估计与子阵单元间 DOA 估计; |
Then angles of azimuth and elevation for different baselines based on the distributed 2-D array are estimated using 2-D state space balance method. |