Abstract
Consideration is given to the experimental investigation of the original method of providing radio communications with a reentry vehicle along the trajectory section when a vehicle is surrounded by plasma of the ionized shock layer. The method suggests placing of the antennas in special small containers. The containers are located at about zero angle of attack on a pylon ahead of the bow shock wave generated near a vehicle. Because of the small container bluntness low level of ionization near the antennas could be provided. But many problems connected with heating and thermal protection of the container and pylon arise in this case. Therefore along with the measurements of ionization near the container, heating and thermal protection of the container and pylon and their ine uenceon thevehicleaerodynamicswereinvestigated.Theexperiments wereperformed in fourhypersonicwind tunnels of different types in Mach-number range from 6.5 to 20.5. Various measurement methods were used. The investigation shows that the remote antenna assembly can provide uninterrupted radio communication with the reentry vehicle.
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