ID 原文 译文
51777 仿真结果表明，使用文章所提方法通信距离能达到2 000 km以上。 The simulation results show that the communication distance can reach more than 2 000 km.
51778 在此基础上，文章还对特征值的选取范围进行优化，使得接收端能够更为准确地解调出特征值承载的信息。 On this basis, the selection range of the eigenvalues is optimized, so that the information carried by the eigenvalue can be demodulated more accurately at the receiver side.
51779 基于白光发光二极管室内可见光通信系统的调制带宽有限， The modulation bandwidth of the white-light Light Emitting Diode(LED) indoor visible light communication system is limited.
51780 在调制带宽受限的条件下，如何进一步提升通信速率成为研究难点。 Under the condition that the modulation bandwidth is limited, how to further increase the communication speed becomes a hot research topic.
51781 文章设计了一种多进制变幅度变周期的调制技术，给出了调制符号结构及符号参数配置， A Multi-ary Variable Amplitude & Period Modulation(MVAPM) technique is designed. The modulation symbol structure and its symbol parameter configuration are given.
51782 详细分析、对比了该调制方式与开关键控、脉冲位置调制和数字脉冲间隔调制方式的带宽需求、传输容量、平均发射功率和误包率。 The modulation methods based on On-Off Key(OOK), Pulse Position Modulation(PPM) and Digital Pulse Interval Modulation(DPIM) are analyzed and compared in terms of bandwidth requirements, transmission capacity, average transmit power, and packet error rate.
51783 仿真结果表明，相对于常用的数字基带调制方式，多进制变幅度变周期的调制技术占用调制带宽低、符号传输容量高且无需符号同步，提高了调制效率，也有效地提高了系统的通信速率。 The theoretical analysis and simulation results show that compared with the commonly used digital baseband modulation method, MVAPM has the characteristics of lower modulation bandwidth, higher symbol transmission capacity, symbol-free synchronization, higher modulation efficiency, which effectively improves the communication rate of the system.
51784 为支持光子轨道角动量(OAM)模式大容量通信传输，文章探讨了新型OAM信号传输光纤的设计与制备技术，满足大幅度提高通信系统频谱效率和容量对特殊光纤的需求。 In order to support the large-capacity communication transmission based on Orbital Angular Momentum(OAM), this paper discusses the design and fabrication of new OAM signal transmission fibers to meet the needs of special optical fibers which can greatly improve the spectral efficiency and capacity of communication systems.
51785 文章模拟和评估了OAM模式在不同波导结构光纤中的模式特性和传播效果， This paper simulates and evaluates the mode characteristics and propagation effects of OAM modes in optical fibers with different waveguide structures.
51786 同时，针对新型传输需求，通过对精确制备技术进行模拟，研究开发出了保偏型OAM传输光纤和OAM掺铒光纤等支持更多OAM模式稳定传输的新型光纤。 Moreover, the optical fiber fabrication technology that supports more stable OAM modes transmission, such as polarization-maintaining OAM transmission fiber, is explored through numerical simulation and experimental demonstration.