分布式孔径相干雷达的时相同步

Q2 Physics and Astronomy

雷达学报 Pub Date : 2013-02-01 DOI:10.3724/SP.J.1300.2013.20104

Zeng Tao, Pi-lei Yin, Xiao-peng Yang, Hua-jian Fan

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引用次数: 11

摘要

分布式孔径相干雷达作为一种新型雷达技术，具有比传统大孔径雷达更容易运输、更便宜等优点，有望成为下一代雷达。然而，时间同步和相位同步是分布式孔径相干雷达需要解决的关键问题。本文首先分析了时间同步和相位同步的误差来源，并建立了相应的数学模型。然后，仿真了同步误差对相干性能的影响，并在此基础上给出了时间和相位同步的精度。最后，提出了非相关传输方案和基于有线传输的校准方案，分别实现了时间和相位同步。同步问题的研究对分布式孔径相干雷达新技术的实现具有重要的指导意义

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Time and Phase Synchronization for Distributed Aperture Coherent Radar

As a new radar technology, the distributed aperture coherent radar is expected to be the next generation radar, which is easier to transport and less expensive than the traditional large aperture radar. However, the time synchronization and phase synchronization are key issues to be addressed for the distributed aperture coherent radar. In this paper, the error sources of time synchronization and phase synchronization are analyzed, and the corresponding mathematical models are first derived. Then, the impact of synchronization errors on the coherent performance is simulated, and the accuracy of time and phase synchronization is presented based on the simulation results. Finally, the noncorrelation transmission scheme and the calibration scheme based on the wired transmission are proposed to realize the time and phase synchronization, respectively. Research of the synchronization problem could be very helpful to realize the new radar technology of distributed aperture coherent

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来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Information not localized