Abstract
The paper presents the Plasma-SA space experiment to study possibility of establishing a laser communication channel between the descent vehicle of the Soyuz transport spacecraft and ground stations at the atmospheric descent phase, when plasma layer is blocking radio communication. Design limitations associated with safe installation of the scientific equipment onboard the Soyuz spacecraft descent vehicle are briefly considered. Ballistic limitations caused by the descent trajectory and the descent vehicle control at the atmospheric phase determining location areas of the ground-based laser radiation sources were analyzed. Principal possibility to register test signal from the ground source by the equipment installed onboard the descent vehicle is demonstrated. Effect of deviation from the calculated trajectory and of alteration in the roll angle during descent control with its registration is demonstrated, and ways to improve these conditions are proposed.
Published Version
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