Statistics – Computation
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012adspr..49..373q&link_type=abstract
Advances in Space Research, Volume 49, Issue 2, p. 373-385.
Statistics
Computation
Scientific paper
In this paper, the collision avoidance maneuver under the chaser's thruster failure in radial direction is investigated. First, based on the vision measurement, the relative position parameters of the target spacecraft are obtained and the target maneuvre positions are calculated through the isochronous interpolation method. Then, by using coupling effects, the thrusters working time intervals can be computed by the time series analysis method. The perturbations and fuel consumptions are addressed during the computation of the thrusters working time intervals. Next, the switching control law under constant thrust is designed for active collision avoidance maneuvres along a specified trajectory.At last, a monte carlo analysis is performed to calculate the relative velocities at which there are the possibility of collision. The simulation results show that with the switching control law, the chaser will maneuver along the specified trajectory and the goal of the collision avoidance can be achieved.
Jia Yingmin
Qi Yongqiang
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