| 分布式卫星SAR相位同步的实现方案及试验验证 |
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| 引用本文： | 李世强,禹卫东.分布式卫星SAR相位同步的实现方案及试验验证[J].电子与信息学报,2012,34(2):356-360. |
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| 作者姓名： | 李世强 禹卫东 |
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| 作者单位： | 中国科学院电子学研究所航天微波遥感系统部 北京100190 |
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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。
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| 关 键 词： | 分布式卫星SAR 相位同步 GPS驯服晶振 |
| 收稿时间： | 2011-07-14 |
Implementation and Verification for Phase Synchronization of Distributed Satellite SAR |
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| Li Shi-qiang
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Yu Wei-dong.Implementation and Verification for Phase Synchronization of Distributed Satellite SAR[J].Journal of Electronics & Information Technology,2012,34(2):356-360. |
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| Authors: | Li Shi-qiang Yu Wei-dong |
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| Affiliation: | (Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China) |
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| 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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| Keywords: | Distributed satellite SAR Phase synchronization GPS-disciplined crystal oscillator |
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