宇航学报 ›› 2019, Vol. 40 ›› Issue (2): 239-246.doi: 10.3873/j.issn.1000-1328.2019.02.014

• 环境试验与器件 • 上一篇    

类X-37B升力体再入飞行通信特性中断研究

左光,陈鑫,徐艺哲,张敏捷,高铁锁   

  1. 1. 北京空间技术研制试验中心,北京 100094;2. 中国空气动力研究与发展中心,绵阳 621000
  • 收稿日期:2018-04-17 修回日期:2018-08-13 出版日期:2019-02-15 发布日期:2019-02-25
  • 基金资助:

    国家自然科学基金(11802015)

Research on Communication Characteristics Blackout for X-37B-Like Lifting Reentry Vehicle

ZUO Guang, CHEN Xin, XU Yi zhe, ZHANG Min jie, GAO Tie suo   

  1. 1. Beijing Manufacture and Experiments Center of Space Technology, Beijing 100094, China; 2. China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2018-04-17 Revised:2018-08-13 Online:2019-02-15 Published:2019-02-25

摘要:

针对再入非平衡等离子流场的数值仿真方法及等离子体鞘套对不同波段电磁波传输特性的预测开展研究。首先,利用某工程钝头体飞行器再入实测通信飞行测量数据,初步校验数值仿真等离子体特性和通信特性方法的正确性;其次,在典型弹道下针对升力体再入飞行器开展等离子体鞘套数值仿真,分别给出S波段、Ka波段与K波段电磁波衰减特性,研究指出结合当前国内中继星体制情况采用高频段电磁波Ka波段或K波段中继通信方式是解决通信黑障的技术途径之一;最后,研究了电磁波数衰减受传播方向角和攻角的影响规律。研究结果可为发展解决我国再入飞行器通信黑障的设计方案提供参考。

关键词: 类X-37B升力体, 等离子体鞘套, 通信特性, 数值仿真

Abstract:

 The numerical simulation method and the transport of the communication characteristics for different electromagnetic waves of the plasma sheath are analyzed. Firstly, based on the flight communication data of a blunt-nosed project, the numerical simulation method and the transport method of the communication characteristics in this paper are preliminarily proved to be feasible. Secondly, the communication characteristics of the plasma sheath for the lifting reentry vehicle are obtained in the typical trajectory. The transport of the communication characteristics for the S-band signals, Ka-band signals and K-band signals are also investigated, which indicates that the high-frequency signals will improve the communication characteristics and can be an effective technical approach for solving the communication blackout based on the domestic relay method. Finally, the influences on the transport of the communication characteristics of the direction angle and the angle of attack are investigated. The results can provide a reference for the communication design of the reentry vehicles to solve the communication blackout in China.

Key words: X-37B-like lifting vehicle, Plasma sheath, Communication characteristic, Numerical simulation

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