临近空间通常指距海平面20～100千米,传统航空器的静升限和航天器的最低运行高度之间的空域,属于“空”与“天”的过渡区,如图1所示。一段时期以来,世界军事强国逐渐意识到临近空间是一块“被军方遗漏”的特殊空间,“不征服这一区域,就谈不上真正的空天一体化”。临近空间飞行器得到了各国军方的重视,成为研究的热点。临近空间飞行器 The adjacent space generally refers to the airspace between 20-100 km from the sea level, the static lift limit of the traditional aircraft and the minimum operational altitude of the spacecraft, and belongs to the transition region between “null” and “day” as shown in Figure 1 As shown. For some time now, the world’s military powers have come to realize that the adjacent space is a special space “left behind by the military.” “Without conquering this region, there can be no real integration of heaven and sky.” Near space vehicles have been the military attention of all countries, becoming a research hot spot. Near spacecraft