电讯技术Issue(9)：1265-1269,5.DOI:10.3969/j.issn.1001-893x.2014.09.017
再入等离子鞘套对测控信号传输的影响
Influence of Reentry Plasma Sheath on TT & C Signals Transmission
摘要
Abstract
In the reentry process of hypersonic vehicles,there is a layer of plasma sheath around the air-craft,which seriously influences the transmission of telemetry,track and command( TT&C) signals. An a-daptive stratified model of inhomogeneous plasma sheath is proposed to analyze the influence of TT&C sig-nals through plasma sheath. By simulating the transmission attenuation of electromagnetic waves in the RAM-C typical reentry plasma sheath,the blackout altitudes of TT&C signals are obtained. Comparing the results with the data in NASA's report shows the two correspond very well. The actual flight tests also demonstrate the effectiveness of this method. It indicates that the method can simulate the transmission characteristic of electromagnetic waves in reentry plasma sheath and can be used in further research of the blackout phenomenon.关键词
高超声速飞行器/测控信号/等离子鞘套/再入黑障Key words
hypersonic vehicle/TT&C signals/plasma sheath/reentry blackout分类
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张作一,赵良,刘秀祥..再入等离子鞘套对测控信号传输的影响[J].电讯技术,2014,(9):1265-1269,5.
