CAJ | 학술논문

针对测试场对试验控制信息、时间信息和准频率信息要求较高的特点，设计了基于GPS授时的时间统一系统。在简要介绍时统设备组成的基础上，对影响系统的误差因素进行了分析，着重从调制解调方面讨论了B码终端误差，从系统同步和失步方面讨论了守时误差；提出了从增强B码解调器适应能力、时统守时精度、取样信号时刻精度三个方面减小时统误差的处理措施，指出系统设计中通过合理进行误差分配，控制显著误差，可实现系统的技术性能和经济性能的统一。
침대측시장대시험공제신식、시간신식화준빈솔신식요구교고적특점，설계료기우GPS수시적시간통일계통。재간요개소시통설비조성적기출상，대영향계통적오차인소진행료분석，착중종조제해조방면토론료B마종단오차，종계통동보화실보방면토론료수시오차；제출료종증강B마해조기괄응능력、시통수시정도、취양신호시각정도삼개방면감소시통오차적처리조시，지출계통설계중통과합리진행오차분배，공제현저오차，가실현계통적기술성능화경제성능적통일。
According to the characteristic that the test range has serious requirements for experiment control information, time information and frequency information,a GPS?based time synchronization system is proposed. The composition of the time synchronization system is introduced. The equipment error factors are analyzed. The terminal error of B code is discussed in modu?lation and demodulation emphatically. The timing error is discussed focusing on system synchronization and out?of?synchroniza?tion. A measure to mitigate time synchronization error by improving the adaptability of B code demodulator,time synchronization accuracy and sampling signal time precision is proposed. It is pointed out that a well?balanced tradeoff between technical perfor?mance and economic affordability can be realized with rational distribution of error and control of notable error.