ID 原文 译文
19775 根据侧信道攻击的实施特点，结合熵值法对虚拟节点的侧信道风险进行评估，并将服务器上偏离平均风险程度大的虚拟节点进行迁移； According to the characteristics of SCA, the entropy method is used to evaluate the side-channel risks and migrate the virtual node from a server with large deviation from average risk.
19776 采用马尔科夫决策过程描述网络切片虚拟节点的迁移问题，并使用Sarsa学习算法求解出最终的迁移结果。 The Markov decision process is used to describe the migration of virtual nodes for network slicing, and the Sarsa learning algorithm is used to solve the optimal migration scheme.
19777 仿真结果表明，该方法将恶意网络切片实例与其他网络切片实例隔离开，达到防御侧信道攻击的目的。 The simulation results show that this method can separates malicious network slice instances from other target network slice instances to achieve the purpose of defense side channel attacks.
19778 多重信号分类(MUSIC)算法是一种经典的空间谱估计算法。 The MUltiple SIgnal Classification (MUSIC) algorithm is a classical spatial spectrum estimation algorithm.
19779 该文以L型阵列为例，针对2D-MUSIC算法在接收信号信噪比较小时对多个目标中方位相近的目标无法进行准确估计的问题，提出一种改进2D-MUSIC算法。 Taking L-shaped array as an example, an improved 2D-MUSIC algorithm is proposed for the problem that 2D-MUSIC algorithm often fails to estimate accurately targets in close proximity among multiple targets when the signal-to-noise ratio is low.
19780 该算法对经典2D-MUSIC算法所构成的协方差矩阵进行共轭重组，并将重组后矩阵的平方与原协方差矩阵的平方进行相加求平均，由此获得新的矩阵，再对该矩阵对应的噪声子空间进行加权处理，选取适当的加权系数构造新的噪声子空间，最后通过谱峰搜索识别出目标位置。 The algorithm identifies the target location through spectrum peak search by first performing conjugate recombination on the covariance matrix generated by the classical 2D-MUSIC algorithm, then calculating the mean of sum of square of the recombined one and the original one as the new matrix, whose corresponding noise subspace then weighted by applying appropriate coefficients to obtain a new noise subspace.
19781 计算机仿真结果表明，与2D-MUSIC算法相比，改进后的算法在接收信号信噪比较小时对多个目标中方位相近的目标也能够进行信号波达方向(DOA)估计，提高了L型阵列2维DOA估计的分辨率，具有较好的工程应用价值。 The computer simulation results show that compared with the 2D-MUSIC algorithm, the improved algorithm performs well on DOA estimation for the targets in close proximity among multiple targets when the received signal has low signal-to-noise ratio, which improves the resolution of 2D-DOA estimation with L-shaped array, with better engineering application value.
19782 合成孔径雷达(SAR)系统的辐射定标可以构建SAR图像与地物后向散射截面积(RCS)的关系，反演目标物理特性，满足SAR定量化遥感需求。 The radiometric calibration of Synthetic Aperture Radar (SAR) can establish a mapping relationship between SAR image and Radar Cross Section (RCS) of ground objects, which benefits the inversion of target physical properties, and further meets the needs of quantitative remote sensing.
19783 相对于其它波段，S波段SAR的定量化遥感工作罕见报道。 Compared with otherwavebands, the reports about SAR works in S-band are rare.
19784 该文利用已知SAR及平台参数进行S波段SAR辐射定标处理，首先推得了图像像素值与目标后向散射系数的关系，接下来详细分析了各项误差对定标精度的影响，给出了天线指向误差对定标精度影响的解析表达式。 This paper focuses on the radiometric calibrationof radar at S-band by using the known parameters of radar and plane. Firstly, the relationship between imagepixel intensity and RCS of target is derived. Then, a detailed analysis on each error component is implemented,in which, the affection of antenna direction on radiometric calibration precision is given by the analyticexpression.