Biased-Proportional-Navigation-Based Predictor–Corrector Landing Guidance for Reusable Launch Vehicles

What is it about?

This paper proposes a new way to guide reusable launch vehicles safely back to Earth. The launch vehicle landing guidance involves the determination of the angle of attack, sideslip angle, and thrust. We present to determine the angle of attack and sideslip angle by biased proportional navigation law, thus rendering the launch vehicle landing guidance problem only has one control variable-thrust. In addition, the thrust is determined by root-finding problem, based on optimality analysis. We tested this method and found it could make launch vehicle landings more precise and fuel-efficient, helping advance the technology for safe and reliable reusable launch vehicles.

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