摘要: |
精确协同作战作为信息化条件下作战形态的必然发展趋势,其对作战平台间高精度时间同步提出了较高的要求。针对该要求,在分析了战术数据链往返计时(RTT)时间同步算法的基础上,提出了卫星导航载波相位差分GPS(DGPS)技术与数据链高精度时间同步算法,利用卡尔曼滤波构建时间同步计算算法模型,实现高精度的时间同步。仿真结果表明该算法可提高时间同步精度到3 ns。 |
关键词: 协同作战 战术数据链 时间同步 差分GPS 往返计时 卡尔曼滤波 |
DOI: |
|
基金项目: |
|
High-precision time synchronization for collaborative tactical data link via differential GPS |
HUA Jiang |
() |
Abstract: |
The precise cooperative combat is an inevitable development trend under the condition of informationization,so high-precision time synchronization is urgently needed between different platforms. By analyzing the round trip time(RTT) clock synchronization algorithm and the differential GPS(DGPS) technology,a time synchronization model is constructed by Kalman-filtering to obtain high-precision time synchronization.Algorithm process is provided and algorithm strategy is simulated. The simulation results show that the precision of time synchronization can be improved to 3 ns. |
Key words: cooperative combat tactical data link time synchronization differential GPS round trip time Kalman-filtering |