ID 原文 译文
23555 与现有算法仅优化交换机迁移方法不同，该方法同时考虑控制器部署位置的影响。 Different from the present algorithms which only optimize switch immigration method, the proposed strategy also considers the influence of controller placement.
23556 首先利用标号传播算法构造备选子集并划分双层子集，然后在每个子集中选取合适位置部署控制器，最后为子集内节点分配相应的 master 和 slave 控制器。 Firstly, Label Propagation Algorithm (LPA) is used to construct alternate domains set and partition bilayer domains. Then, one controller is placed in each domain on properly selected situation. Finally, the switches are assigned to corresponding master and slave controllers.
23557 实验结果表明，与现有算法相比，所提方法可有效解决交换机迁移后控制器超载的问题； The experimental results show that controller overloading problem is well solved compared with the present algorithms.
23558 通过调整参数，权衡控制器故障前后网络性能，可明显改善交换机迁移后的控制链路平均时延。 Network performance before and after failure can be traded off by adjusting parameters, which decreases average control path latency after switch immigration.
23559 脉冲超宽带测控系统作为一种航天测控新体制，可有效提高系统的隐蔽性和抗干扰性。 The impulse radio Ultra-WideBand (UWB) Tracking, Telemetry, and Command (TT&C) system is a new kind of TT&C system that can greatly improve the concealment and anti-interference performance.
23560 该文针对脉冲超宽带测控信号的捕获问题，提出利用基于部分匹配滤波与快速傅里叶变换(Partial Matched Filtering and Fast Fourier Transform, PMF-FFT)的捕获方法完成对脉冲相位、伪码相位和多普勒频率的 3 维捕获。 To solve the acquisition problem of the impulse radio UWB TT&C signal, an acquisition scheme based on Partial Matched Filtering and Fast Fourier Transform (PMF-FFT) is proposed to accomplish the three-dimensional acquisition of pulse phase, pseudorandom code phase and Doppler frequency simultaneously.
23561 又针对搜索空间大、捕获时间长和多普勒频率估计精度低的问题，提出了一种改进的捕获方法。 Then, according to the problem of excessive search space, long acquisition time and low estimation accuracy of Doppler frequency, a new improved acquisition scheme is proposed.
23562 该方法采用两步捕获法对时延相位进行捕获，同时利用修正的 Rife 算法对多普勒频率进行进一步精细估计。 It adopts the two-step scheme to accomplish time delay phase acquisition, and uses the modified Rife algorithm to further estimate the Doppler frequency.
23563 仿真结果表明，该方法可有效提高捕获速度，减小捕获时间，且能显著提高多普勒频率估计精度。 Simulation results show that this scheme can effectively improve the acquisition speed, reduce the acquisition time, and greatly improve the estimation accuracy of Doppler frequency.
23564 数字模拟混合预编码可以用较少的射频逼近全数字预编码的性能，可以用来解决毫米波大规模 MIMO 系统中由于射频链路过多造成的硬件损耗和校准问题。 The digital and analogue Hybrid Precoding (HP) is able to keep the performance close to that of the fully digital precoding with reduced Radio Frequency (RF) chains. In a millimeter wave massive MIMO system, the HP can be used to overcome the undesired hardware cost and calibration workload caused by the excessive RFs.