LIFTING REENTRY COMMUNICATIONS. VOLUME 1: A COMPARATIVE EVALUATION OF POTENTIAL SYSTEMS

Aerodynamic and electromagnetic calculations are performed to evaluate quantitatively the magnitude and duration of communications blackout for lifting reentry vehicles. A comprehensive list of proposed alleviation techniques is compiled and evaluated on the bases of communication quality, weight, f...

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Bibliographische Detailangaben
Hauptverfasser:	Dix, Donald M, Golden, Kurt E, Taylor, Edward C, Kolpin, Marc A, Caron, Paul R
Format:	Report
Sprache:	eng
Schlagworte:	AERODYNAMIC CONFIGURATIONS ATTENUATION BANDWIDTH BLACKOUT(PROPAGATION) COMMUNICATION AND RADIO SYSTEMS COMMUNICATIONS NETWORKS COOLANTS INJECTION MILLIMETER WAVES OPTICAL COMMUNICATIONS PLASMA SHEATHS Radio Communications RADIOFREQUENCY REENTRY VEHICLES SIGNAL TO NOISE RATIO WAVEGUIDE WINDOWS
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Beschreibung
Zusammenfassung:	Aerodynamic and electromagnetic calculations are performed to evaluate quantitatively the magnitude and duration of communications blackout for lifting reentry vehicles. A comprehensive list of proposed alleviation techniques is compiled and evaluated on the bases of communication quality, weight, flexibility, and required research. It is concluded that the techniques of local aerodynamic shaping, injection of coolant into the nonexpanding part of the flow, injection of electronegative species into the expanding part of the flow, and use of magnetic window are apparently feasible. A program of further research, which is required for a solution of the blackout problem, is delineated.