Multistep Iterative Tracking Filter for Relative Orbit Determination in an Arbitrarily Orbit

Abstract

AbstractThe relative orbit determination of satellite in an arbitrarily orbit is presented in this paper. Using the measuring sensor information, the relative orbit parameters can be obtained which can be used for the relative configuration maintain or formation control. Firstly, based on the universal variables, the relative orbit motion equation which described in geocentric inertial coordinate is derived. The model can used for arbitrarily orbit. Secondly, considering the convergence performance, a new multistep iterative tracking filter is developed for the non-linear measuring equation. The measuring information can be better utilized in this filter, and it can acquire better convergence and precision. The validity of the proposed multistep iterative tracking filter is illustrated by two cases.KeywordsMultistep iterative tracking filterRelative orbit determinationUniversal model