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深空高速再入对返回技术提出了许多新的挑战.采用传统弹道式返回,将使返回器面临残酷的气动热环境,同时需要解决落点偏差大的问题;采用新的预测制导返回技术需要解决返回过程的航迹规划、制导和姿态控制问题.根据球冠倒锥外形飞行器在大气层内再入飞行时的受力情况建立飞行器的动力学模型,然后对弹道式返回和预测制导返回两种飞行方案进行仿真,最后围绕返回飞行总体特性参数和返回方式的技术要求等进行工程应用分析,为深空返回的工程实践提供指导.
Deep-space high-speed re-entry poses many new challenges for return technology, with traditional ballistic return that will expose the reflector to a harsh aerodynamic thermal environment while addressing the issue of large drop-offs; the need for new guided-return techniques To solve the problem of trajectory planning, guidance and attitude control during the return process.According to the force situation of the spherical inverted cone shape aircraft reentrying into the atmosphere, a dynamic model of the aircraft is established, and then two types of ballistic return and predicted guidance return Flight program simulation, and finally on the back of the flight characteristics of the overall parameters and return of the technical requirements for engineering application analysis, to provide guidance for the engineering practice of deep space return.