分布式卫星SAR相位同步的实现方案及试验验证
doi: 10.3724/SP.J.1146.2011.00719
Implementation and Verification for Phase Synchronization of Distributed Satellite SAR
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摘要: 雷达载波的相位同步是分布式卫星SAR正常工作的前提，该文提出了一种分布式卫星SAR系统相位同步的改进方案，在采用GPS驯服晶振基础上利用相位同步脉冲的双向对传实现相位同步。分析了影响相位同步性能的各种因素，并通过地面试验验证了该文方案的性能。Abstract: Phase synchronization of radar carrier is prerequisite to distributed satellite SAR system. In this paper, a modified phase synchronization means of distributed satellite SAR is proposed, that is, phase synchronization pulses are exchanged between satellites based on the GPS-disciplined crystal oscillators. The factors affecting phase synchronization performance are analyzed, and the performance of phase synchronization link is verified by ground test.
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