摘要
时间和频率同步是雷达标校系统的关键技术之一,同步的实现是系统采用两地雷达目标模拟技术所必须的。研究一种基于GPS的卫星时间和频率同步方案,即接收GPS转发的标准时间和频率信号,采用同步模块实现标校系统舰上和岸上两地的时间和频率同步,该方案优于传统同步装置的长时间校正频率误差,提高了标校系统的时间和频率同步精度,从而减小了标校系统对雷达进行标定校准的误差。
The time and frequency synchronization is a key technology of radar calibration system,the realization of synchronization is necessary for this calibration to adopt the technology of two-point radar target simulation.A method of synchronization for time and frequency based on GPS satellite is introduced,which is realized by receiving standard time and frequency signal transmitted from GPS satellite and adopting synchronization module to realize the time and frequency synchronization between sea-going part and harbor part.This method is superior to traditional synchronization device in aspect of longtime frequency error correction,greatly enhances synchronization accuracy of time and frequency in the calibration system,and reduces the error when the calibration system calibrates a ship radar.
出处
《现代电子技术》
2010年第15期8-10,共3页
Modern Electronics Technique
基金
国家自然科学基金资助项目(60874112)
关键词
雷达标校
时间同步
频率校准
GPS
radar calibration
time synchronization
frequency calibration
GPS
