ID	原文	译文
3733	仿真结果表明，本方案能够显著提升成功接入设备数。	Simulation results demonstrate that the proposed scheme can significantly in-crease the number of the successful devices.
3734	随着轨道角动量（OAM）光通信技术的研究不断深入，OAM 路由器件在提升通信系统的灵活性和实用性方面扮演着重要的角色，近些年，具有特定功能的 OAM 路由器件的研究得到了飞速发展。	With the development of orbital angular momentum (OAM) based optical communication technology, OAMrouter played an important role in improving the flexibility and practicability of OAM communication system. In recent years, the research on multifunctional OAM router had also been developed rapidly.
3735	基于此，对近些年 OAM 路由器件的研究成果进行了概述，对其中可实现信道切换、多播、滤波、添加/提取、跳变和模式划分 6 类 OAM 路由器件的原理、研究方法及优缺点进行了讨论与总结，同时对 OAM 路由器件未来的发展趋势进行了展望。	Based on this, the research results onthe OAM router had been summarized and reviewed, in which the principles, research methods, advantages and disad-vantages of six types of OAM router, with the functions of switching, multicast, filtering, adding/extraction, and jumpingand mode dividing respectively, had been discussed and summarized in details. Meanwhile, the future developing trend of the OAM router has also been prospected and discussed in the end.
3736	针对波达方向（DOA）估计中非圆信号多重信号分类（NC-MUSIC）算法运算复杂度过高的问题，提出了一种结合子空间旋转的非圆信号快速 DOA 估计算法。	In order to solve the problem that the high computational burden of the multiple signal classification algorithmof non-circular signal (NC-MUSIC) in direction-of-arrival (DOA) estimation, a novel computationally efficient DOAestimation algorithm based on subspace rotation technique was proposed.
3737	所提算法首先利用对噪声子空间矩阵分块和子空间旋转技术（SRT）构造降维噪声子空间；	Firstly, the partitioning of noise subspacematrix and the subspace rotation technique (SRT) were used to construct a new reduced-dimension noise subspace.
3738	然后根据降维噪声子空间与扩展后阵列流型矩阵张成空间的正交性和变量分离，将 NC-MUSIC 算法中的二维谱峰搜索转化为一维谱峰搜索。	Then,the two-dimensional peak searching was converted to the one-dimensional peak searching on the basis of the separationof variables and the orthogonality between the new reduced-dimension noise subspace and the space spanned by thecolumns of the extended manifold matrix.
3739	所提算法通过二维谱峰搜索到一维谱峰搜索的转化和去除一维谱峰搜索中冗余计算的方式提高了算法的计算效率。	The proposed algorithm can enhance the computational efficiency by means of the conversion of the two-dimensional peak searching into the one-dimensional peak searching and the removal ofredundant computations.
3740	理论分析和仿真结果表明，与 NC-MUSIC算法相比，所提算法可在保证 DOA 估计精度的前提下将算法运算复杂度降至 NC-MUSIC 算法运算复杂度的 5%以下；	Theoretical analysis and simulation results show that the proposed algorithm can reduce thecomputational complexity to less than 5% as compared to NC-MUSIC algorithm on the premise of ensuring the accuracyof DOA estimation.
3741	尤其对于阵元数目较多的场景，所提算法的计算效率优势更明显。	Especially, the efficiency advantage of the proposed algorithm is more obvious in scenarios where thelarge numbers of sensors are required.
3742	在区块链赋能的移动边缘计算（BMEC）系统中，针对各类新型计算任务并行性需求的差异，提出了一种基于异构计算的 BMEC 系统模型，通过调用异构计算架构中并行计算能力不同的处理器，实现区块链业务与用户业务的高效处理。	In blockchain-enabled mobile edge computing (BMEC) systems, a new class of blockchain application relatedcomputation tasks was introduced to the system. Due to the differences of parallelism among computation tasks, hetero-genous computing framework was introduced to suitably split various computation tasks on processors with vastly dif-ferent processing power to achieve efficient task execution.