ID 原文 译文
16855 从合理高效利用星上有限资源角度出发，该文研究基于低轨卫星星座的全球物联网业务模型。 In order to make reasonable and efficient use of limited resources on board, the traffic model of global Internet of Things based on LEOSC is studied in this paper.
16856 结合多样化的业务特点以及卫星通信系统特性，采用统计建模理论，得出了全球物联网业务模型框架。 Combined with diversified traffic characteristics and satellite communication system characteristics, the framework of global IoT traffic model is obtained by using statistical modeling theory.
16857 并且初步提出了一种基于最高优先级的接入策略，以供设备节点实时选择接入的卫星。 What’s more, an access strategy based on the highest priority is proposed to enable the device node to select the satellite in real time.
16858 仿真结果表明：泊松过程可以用于近似模拟低轨卫星物联网中大量存在的异步流量的叠加过程；由于低轨卫星具有高动态性，其业务源高速变化，导致了卫星业务忙闲不均，峰均比(PAR)较高。 The simulation results show that the Poisson process can be used to simulate approximately the superposition process of asynchronous traffic commonly exist in LEOSC IoT, and due to the high dynamic nature of low earth orbit satellite, its traffic source changes at high speed, resulting in high Peak-to-Average Ratio(PAR) of traffic.
16859 带通采样和数字信号处理技术使得数字光载射频(DRoF)通信系统在射频信号传输中具有显著优势，而且系统通过进一步采用数据压缩技术可实现多服务信号的低比特率传输。 Taking the advantage of the parallel development of electronic sampling systems and signalprocessing, Digital Radio-over-Fiber (DRoF) is studied extensively as a way of providing multi-servicetransmission at low-bit rate through data compression.
16860 然而，系统进行数据压缩的同时会极大降低输入动态范围。 However, the dynamic range is greatly lowered afterdata compression in the system.
16861 基于对数据压缩参数的理论分析，该文提出一种新型快速两级自动增益控制(FST-AGC)算法。该算法采用周期内多阈值判定机制来调整链路增益，具有高稳定、准确和快速响应等特性。 Based on the theoretical analysis of the compression parameters, a novel Fast-Settling Two-stage Automatic Gain Control (FST-AGC) algorithm is proposed, in which gain adjustment settling is carried out by multi-threshold decision mechanism with a fast-settling times, high stability and great accuracy.
16862 通过在数字域和模拟(RF)域进行两级自动增益控制，系统的输入动态范围大大提高。 By introducing a novel gain control mechanism which simultaneously adjusts the gain in digital domain and Radio Frequency (RF) domain, the dynamic range of the system increases significantly.
16863 该算法被成功应用到能够同时支持3家移动运营商(MONs)所有服务的多服务低速率DRoF系统中。 Thisalgorithm has been applied to a DRoF system which supports the low-bit rate transmission of all services of 3China Mobile Network Operators (MONs) successfully.
16864 理论计算、软件仿真和系统测试结果都验证了该算法具有显著优势和良好性能。 The theoretical analysis, the simulation results and theexperimental data all prove the validity of the proposed algorithm.