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等离子体鞘套对C波段通信信号传输影响的试验

邬润辉 刘洪艳 刘佳琪 常青

邬润辉, 刘洪艳, 刘佳琪, 等 . 等离子体鞘套对C波段通信信号传输影响的试验[J]. 北京航空航天大学学报, 2013, 39(11): 1437-1442.
引用本文: 邬润辉, 刘洪艳, 刘佳琪, 等 . 等离子体鞘套对C波段通信信号传输影响的试验[J]. 北京航空航天大学学报, 2013, 39(11): 1437-1442.
Wu Runhui, Liu Hongyan, Liu Jiaqi, et al. Experiment on influence of the communication signals transmission in plasma sheath[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(11): 1437-1442. (in Chinese)
Citation: Wu Runhui, Liu Hongyan, Liu Jiaqi, et al. Experiment on influence of the communication signals transmission in plasma sheath[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(11): 1437-1442. (in Chinese)

等离子体鞘套对C波段通信信号传输影响的试验

基金项目: 国家自然科学基金资助项目(61302029)
详细信息
  • 中图分类号: TN99

Experiment on influence of the communication signals transmission in plasma sheath

  • 摘要: 飞行器在稠密大气层超音速飞行时,由于其周围形成等离子体鞘套对通信信号的屏蔽或能量大幅度衰减效应,可使飞行器与地面间通信产生中断.以等离子体鞘套对通信信号透射相位改变和能量吸收为基本出发点,以高温激波管试验装置产生的、生存时间为几百微秒量级的等离子体鞘套为研究对象,利用四进制相移键控(QPSK,Quaternary Phase Shift Keying)调制、载波频率为7.5GHz的信号生成与测量系统获取有无等离子体鞘套时信号相位特征、眼图特征、图像传输等的对比试验结果,利用矢量网络分析系统E8362B获取了有无等离子体鞘套时透射能量衰减对比试验结果.试验结果不仅进一步证明了等离子体鞘套对通信信号能量大幅度衰减将不同程度影响飞行器与地面的正常通信;同时表明等离子体鞘套能够使QPSK信号相位特征产生改变,从而在信号解调解码后眼图特征产生严重畸变,通信系统误码率Pe 大大提高,最终导致接收端无法复现发送端发送的原始信息.

     

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出版历程
  • 收稿日期:  2013-01-08
  • 刊出日期:  2013-11-30

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