Close-Proximity Dynamic Operations of Spacecraft with Angles-Only Rendezvous in a Circular Phasing Orbit

摘要

Through this paper, it is to assess a closed-loop guidance algorithm for the range of observability of angles-only by rendezvous position and proximity operation. The prominence and influence of Clohessy-Wiltshire dynamics (CWD) is an emerging area which deals with angles-only guidance coupling algorithm and relative position. Observability analysis of the of rendezvous at a low earth circular orbit, as opposed to one spacecraft remaining fixed in its orbit, and the implications for total times are expended. A closed-loop guidance design scheme is generally based on unscented Kalman filter (UKF) and coupling relationship. The proposed method is used in the analysis and the following results are obtained for an initial separation, initial state uncertainties, line-of-sight angles correctness and ΔV (change in velocity) from the navigation and guidance accuracy. The novelty of the approach is to minimize the delta-V for close-proximity operation in phasing spacecraft to the other.