In recent years, numerous studies have been conducted regarding the modeling of
contact/impact events between smooth contacting surfaces, ie spheres and cylinders …

Abstract The use of Global Positioning System (GPS) measurements provides the primary
technique for determining the relative position of cooperative, formation-flying satellites in …

Orbit maneuver of non‐cooperative space targets is difficult to detect, and thus greatly affects
the accuracy of real‐time target tracking. To solve this problem, a joint filter‐based algorithm …

The nonlinear unscented Kalman filter (UKF) is evaluated for the satellite orbit determination
problem, using Global Positioning System (GPS) measurements. The assessment is based …

Current contact force models are expected to be used under different environments, where
the dynamical parameter estimation becomes an important issue in accurately analyzing the …

Orbit determination (OD) problem utilizing onboard sensors is a key requirement for many
current and future space missions. Though there exists ample research and work on this …

Due to the importance of satellites for society and the exponential increase in the number of
objects in orbit, whether they are space debris or functional satellites, it is important to …

A particle filter, specifically a Bayesian bootstrap filter algorithm, is applied for estimating the
state vector that characterizes the orbit of a satellite, using a set of GPS measurements. The …

THE estimation of relative and absolute positions of spacecraft formations is a fundamental
task in many space missions. Relative-position estimation plays an important role in …

With the increase in the number of active satellites and space debris in orbit, the problem of
initial orbit determination (IOD) becomes increasingly important, demanding a high …