Abstract:

A fly-around method applied to capture position on inertia axis of a non-cooperative target is proposed. Firstly, a fly-around frame is defined using real relative position and target position. Secondly, two kinds of scheme for approaching path design are described, one named sector scheme and another named beeline scheme. According to the angle between real relative position and target position, one of the two schemes is selected to produce a transitional target position, and CW guidance law is applied for approaching the position. Thirdly, an attitude control law is designed for keeping the x axis of chaser pointing to the non-cooperative target. Finally, the efficiency of the fly-around method is validated by a simulation.

Key words: Non cooperative target, Inertia axis, Fly around