CAJ | 학술논문

针对现有机载时间同步系统在综合航电系统架构下通用性和可扩展性不足的问题，提出了一种具有开放式特征的机载时间同步系统架构。首先根据机载时间同步系统应用需求，分析了机载平台可选的技术手段，然后围绕时间链路、时间处理、时间管理、时间应用等基本要素，将机载时间同步系统自上而下划分为三个部分，从而形成分层次的机载时间同步架构。该架构在层间采用了标准开放接口，能同时兼容多种机间时间比对链路，具备多时间管理和时间品质评估的能力。最后，介绍了该架构下的时间同步实现流程，并分析了影响同步精度的主要误差环节。桌面测试结果表明，所提架构能够实现优于10 ns的时间同步精度。
침대현유궤재시간동보계통재종합항전계통가구하통용성화가확전성불족적문제，제출료일충구유개방식특정적궤재시간동보계통가구。수선근거궤재시간동보계통응용수구，분석료궤재평태가선적기술수단，연후위요시간련로、시간처리、시간관리、시간응용등기본요소，장궤재시간동보계통자상이하화분위삼개부분，종이형성분층차적궤재시간동보가구。해가구재층간채용료표준개방접구，능동시겸용다충궤간시간비대련로，구비다시간관리화시간품질평고적능력。최후，개소료해가구하적시간동보실현류정，병분석료영향동보정도적주요오차배절。탁면측시결과표명，소제가구능구실현우우10 ns적시간동보정도。
For the deficiency problem on commomnality and scalability of the existing airborne time syn-chronization system when used in integrated avionics systems,an open time synchronization system architec-ture is proposed. First,according the application requirement of the airborne time synchronization system, optional technology means is analyzed. Then,on the basis of basic elements such as time link,time process, time management,and time application,the time synchronization system is divided to three parts. As a re-sult,a hierarchical airborne time synchronization airchitectecture is put forward. The architecture employs a standard open interfaces among layers,is compatible with several time synchronization links,and also can evaluate time figure of merit. Finally,the time synchronization implementation procedure is introduced and the major factors affecting synchronization accuracy are analyzed. Desktop test results show that the pro-posed architecture can achieve synchronization accuracy better than 10 ns.