空天预警研究学报2026，Vol.40Issue(4)：264-268,5.DOI:10.3969/j.issn.2097-180X.2026.04.006
基于本地测频与运动参数传输的分布式雷达时频同步方法
Distributed radar time-frequency synchronization method based on local frequency measurement and motion parameter transmission
摘要
Abstract
Aiming at the problem that direct-wave synchronization method suffers from the measurement er-rors in Doppler shift compensation caused by propagation path deviations,which makes it difficult to guarantee the time-frequency synchronization accuracy of distributed radar on highly maneuverable platforms,this paper proposes a method based on local frequency measurement and motion parameter transmission.The transmitter transmits parameters such as its own position and velocity to the receiver via one-way burst communication.After demodulation,the Doppler frequency shift of the reflected wave path is directly calculated to eliminate measure-ment errors.Based on the field programmable gate array(FPGA)time-to-digital converter(TDC)technology,both the transmitter and receiver measure the actual frequency of local clocks by means of pulse-per-second sig-nals.Simulation results demonstrate that the local frequency measurement error of the proposed method is less than 3.25×10-10,and that the residual frequency error after frequency compensation is within 7×10-10 of the radio frequency,which represents a significant accuracy improvement compared with the direct-wave synchronization method.关键词
分布式雷达/时频同步/现场可编程门阵列Key words
distributed radar/time-frequency synchronization/field programmable gate array(FPGA)分类
信息技术与安全科学引用本文复制引用
王裕廷,周小平,彭小镔,盛世威..基于本地测频与运动参数传输的分布式雷达时频同步方法[J].空天预警研究学报,2026,40(4):264-268,5.
