ID 原文 译文
623 单相全桥整流器工作在硬开关状态时，随着开关频率和输出功率的增大，开关损耗会显著增大，影响整流器效率的提高。 When single-phase full-bridge rectifier works in the hard-switching state, with the increasing of switchingfrequency and output power, the switching loss will increase significantly, which has negative influence on the efficiency of the rectifier.
624 为解决这一问题，提出了一种单相全桥软开关整流器。 In order to solve this problem, a single-phase full-bridge soft-switching rectifier is proposed.
625 在整流器处于死区状态时，将要开通的主开关并联的谐振电容的电压能减小至零。 When the rectifieris in the dead state, the voltage across the resonant capacitor in parallel with the main switch can decrease to zero via the res-onance of the auxiliary circuit.
626 主开关动作时能完成零电压软切换，双向辅助开关动作时能完成零电流软切换。 The main switch can achieve zero-voltage switching, and the bidirectional auxiliary switch canachieve zero-current switching.
627 分析了整流器的换流过程，实验结果表明主开关和辅助开关完成了软切换动作。 The commutation process of the rectifier is analyzed. The experimental results show that the main switch and auxiliary switch can achieve soft-switching.
628 因此，该单相全桥软开关整流器在高开关频率下能实现高效率运行。 Therefore, the single-phase full-bridge soft-switching rectifiercan achieve high-efficiency operation with high switching frequency.
629 针对异构网(Heterogeneous Network，HetNet)无线回程，现有研究主要集中于提升网络吞吐量，而对回程覆盖性能研究较少。 For wireless backhaul of heterogeneous networks (HetNet), the existing researches mainly focus on improving the network throughput.
630 由此，本文构造了一种在小小区基站(Small cell Base Station，SBS)上结合全双工(Full-Duplex，FD)和非正交多址接入(Non-Orthogonal Multiple Access，NOMA)技术的大规模多输入多输出(Multiple Input MultipleOutput，MIMO)辅助多层 HetNet 模型。 However, few research is done on the coverage performance in the backhaul link. Therefore, this paper constructs a massive multiple input multiple output (MIMO)enabled multi-tier heterogeneous network model combing full-duplex(FD)and non-orthogonal multiple access (NOMA)technologies on small cell base stations (SBSs).
631 利用信干比(Signal-to-Interference Ratio，SIR)来模拟有源 SBS 的分布，得出不同类型接收端的干扰; The signal-to-interferenceratio (SIR)is utilized to simulate the distribution of active SBS, and the interference is obtained at different types of receivers.
632 然后推导了移动用户(Mobile User，MU)下行链路覆盖概率闭合表达式。 Then, the mobile user (MU)downlink coverage probability closed-form expressions are deduced.