ID 原文 译文
55988 分布式nested阵列以较少的阵元数及硬件成本实现大的孔径和较高的分辨力,而且提高了目标波达方向(direction of arrival,DOA)估计的精度。 Distributed the number of array elements nested array with less hardware cost and realize the large aperture and high resolution, and improved the target DOA (direction of concatenated, DOA) estimation precision.
55989 并利用基于Khatri-Rao积的空间平滑酉旋转不变子空间(estimation of signal parameters via rotational invariance techniques,ESPRIT)算法进行DOA估计。 And by using spatial smoothing based on Khatri - Rao product unitary rotation invariant subspace (estimation of signal parameters via rotational invariance techniques, ESPRIT) algorithm is used to estimate DOA.
55990 其先对协方差矩阵向量化提高自由度,然后利用空间平滑对新数据协方差矩阵进行秩恢复,最后使用双尺度酉ESPRIT算法得到DOA估计。 Its first on the covariance matrix to the quantitative increase the degree of freedom, then using spatial smoothing covariance matrix of the new data in rank, finally use double scale unitary ESPRIT algorithm for DOA estimation.
55991 仿真结果证明所提方法的有效性。 The simulation results prove the effectiveness of the proposed method.
55992 根据复杂系统一般由多个分系统组成,其结构往往具有层次性的特点,研究了分层系统的测试模型,在对模型进行分层处理的基础上,采用Rollout算法对分层系统中各个子系统的相关性矩阵模型进行计算,并按照得出测试序列和层次结构建立故障诊断树,从而建立了一种分层系统诊断策略。 According to complex system composed of multiple subsystem, its structure has the characteristics of gradation, often test model, the hierarchical system are studied in the model on the basis of hierarchical processing, USES the Rollout algorithm of hierarchical model to calculate the correlation of each subsystem in the system matrix, and established in accordance with the test sequence and hierarchy fault diagnosis tree, thus establish a layered system diagnosis strategy.
55993 实例分析表明,基于分层考虑的诊断策略可以按照测试需求,方便地将故障隔离到各个层次,而且通过对系统进行分层处理,可降低系统的计算复杂度,缩短计算时间。 Example analysis shows that diagnosis strategy based on hierarchical consider can according to the test requirements, easy to fault isolation to all levels, and through to the system stratification treatment, can reduce the computational complexity of the system, shorten the calculation time.
55994 构建了军事信息栅格(military information grid,MIG)级联失效模型,深入分析MIG级联失效特性,并在此基础上提出了鲁棒性建设策略。 Build the military information grid (he information grid, MIG) cascading failure model, in-depth analysis of MIG cascade failure characteristics, and based on this, advances the robust construction strategy.
55995 基于相互依存网络理论分析模型,将MIG划分为通信基础网和信息服务网,改进了节点介数计算方法,突出了服务关系对通信流量的影响,并定义了节点失效判定准则,研究了失效节点通信负荷和信息服务负荷重分配规律及因此造成的失效传播原理。 Based on the theory of interdependent network analysis model, the MIG is divided into bed of communication and information service network, improve the node betweenness calculation method, highlighted the relationship between service influence on traffic, and defined the node failure criteria, failure load node communication and information service is studied load redistribution regularity and thus cause the failure of transmission principle.
55996 通过引入成本惩罚函数和砥柱节点的概念,构建数学模型,研究并提出了兼顾投入成本和抗毁效益的建设策略。 By introducing a cost penalty function and backbone nodes, the concept of building mathematical model, study and put forward the construction strategy of both cost and anti-damage benefits.
55997 仿真实验结果表明,少量砥柱节点能力的加强,即可有效提高全栅格体系的抗级联失效特性。 Simulation experimental results show that a small amount of backbone nodes ability strengthen, can effectively improve the anti cascade failure characteristics of the grid system.