环球滑翔飞行及其地表投影的近似计算方法

Surrounding-Earth-Gliding Flight and Approximate Computation of Its Geographical Coverage Positions

定义了通过滑翔实现环球飞行的概念,并提出了以椭圆轨道理论和分段常滑翔角方法相结合的飞行器环球滑翔飞行地表投影的近似算法。计算和分析表明,初始投送方向角是决定环球滑翔飞行地表投影的关键因素。最后给出的算例验证了该近似计算方法的有效性。

The concept of the surrounding-earth-gliding flight is described. In order to approximately compute the corresponding geographical coverage positions, a method of combining the well-known ellipse orbit theory and the n-section constant angle algorithm of gliding inclination was proposed. According to the approximate formula, the analyses indicate that the initial release azimuth angle is an important factor to determine the geographical coverage positions in flight. The results show that the method is effective and feasible.