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CLOSED LOOP GUIDANCE SCHEME FOR RLV-TD HEX-01 MISSION

机译：RLV-TD HEX-01任务的闭环指导方案

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摘要

The closed loop guidance algorithm of Re-usable Launch Vehicle Technology Demonstrator, Hypersonic Experiment (RLV-TD HEX) mission is discussed in this paper. Meeting the experimental objectives without violating vehicle safety requirements was the major challenge in guidance algorithm development. Vehicle maneuverability limitations and on-board computer implementation requirements imposed constrains on the algorithm. Guidance algorithm is designed to keep the interactions with other sub-systems minimal to ensure the safety and integrity of the vehicle. Reference trajectories are generated on-board and guidance commands to track these trajectories are computed. Innovative strategy to control horizontal velocity without deployable surfaces is also developed. Dynamic limiting of normal acceleration commands to limit the angle of attack excursions is also an innovation. The guidance algorithm is validated in 6-D simulations to ensure performance and robustness of the algorithm under various flight conditions.
机译：本文讨论了可重复使用的运载火箭技术演示器超音速实验（RLV-TD HEX）任务的闭环制导算法。在不违反车辆安全要求的情况下满足实验目标是制导算法开发的主要挑战。车辆机动性限制和车载计算机实施要求对算法施加了约束。引导算法旨在使与其他子系统的交互保持最少，以确保车辆的安全性和完整性。机上生成参考轨迹，并计算用于跟踪这些轨迹的引导命令。还开发了在没有可展开表面的情况下控制水平速度的创新策略。动态限制常规加速命令以限制迎角偏移也是一种创新。该制导算法在6维仿真中得到了验证，以确保算法在各种飞行条件下的性能和鲁棒性。

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