Based on the concentration of overload,heat flow,and dynamic pressure peak in the reentry process for a sub-orbital vehicle,and the overload become a key constraint,this paper presents the reentry channel differently formed by the reentry corridor,establishes the channel model,and uses reentry trajectory meeting different constraints to describe the boundary of reentry channel.Analysis and simulation results show that the realized of reentry task can be determined by the existence of reentry channel,and the parameters of reentry channel boundary are effective in the research work of trajectory design and reentry guidance.
; 李文皓
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