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Controlling spacecraft landings with constantly and exponentially decreasing time-to-contact

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Two bio-inspired landing strategies are studied. Both strategies enforce a constant ventral optic flow with, respectively, (1) constantly decreasing time-to-contact, or (2) exponentially decreasing time-to-contact. Until now these strategies have only been studied assuming the visual quantities to be known, i.e., without sensor noise and delay. In this study, the control laws executing the aforementioned landing strategies are studied both theoretically and empirically, taking into account the actual extraction of the visual cues from images. 

Guido de Croon

Field of Interest

“The field of interest shall be the organization, systems engineering, design, development, integration, and operation of complex systems for space, air, ocean, or ground environments. These systems include but are not limited to navigation, avionics, mobile electric power and electronics, radar, sonar, telemetry, military, law-enforcement, automatic test, simulators, and command and control."


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