载人航天持续发展所需的先进制导控制关键技术

Key Technologies on Advanced Guidance and Control for Sustainable Development of Manned Space flight

着重介绍美国NASA近年来在对先进制导与控制技术在载人航天重要性的认识过程,提出其所具有的特征,及利用该技术可能取得的在提高航天任务安全性和降低成本方面经典技术无法做到的优越性。最后以载人飞船在探月返回地球时进行跳跃式再入大气层飞行的制导任务为例,用Monte Carlo仿真结果表明,现有的"阿波罗"跳跃式再入制导算法无法满足精度要求,而先进预测-矫正跳跃式再入制导算法具有更广的自适应性,大大提高了着陆的精确性和安全完成任务的可靠性。

Characteristics of Advanced Guidance and Control （AG＆C） technology are introduced, and the advantage of which in improving the mission security and decreasing the cost is presented. The problem of skip entry guidance from a lunar return mission is used as an example to show that a recently developed predictor-corrector skip entry guidance algorithm can guarantee mission success.