Leveraging space-based optical platforms for space debris and defunct spacecraft detection
presents several advantages, including a wide detection range, immunity to cloud cover …

The rapidly growing number of objects encircling our planet is an increasing concern.
Collisions between these objects have already occurred and pose a potential threat in the …

Measurement association and initial orbit determination is a fundamental task when building
up a database of space objects. This paper proposes an efficient and robust method to …

The tracking of space objects poses unique challenges when compared to traditional
applications. Direct application of standard multi-target tracking models fails to yield …

The paper addresses the problem of tracking multiple targets with Doppler-only
measurements in multi-sensor systems. It is well known that the observability of the target …

Admissible region methods for initial orbit determination are generally implemented without
considering the contributions of uncertainty in observations or observer state when …

Abstract Space surveillance by radar is especially used for the low Earth orbit to maintain a
database, also called catalogue, of objects on orbit. Among others, surveillance radars …

Sparse observations make single-point track initialization difficult in some multitarget
tracking scenarios, including space-object tracking. A probabilistic admissible region …

For Geosynchronous Earth Orbit (GEO) objects, space-based optical surveillance has
advantages over regional ground surveillance in terms of both the timeliness and space …

To maintain custody of the increasing number of detectable objects in Earth orbit, tracking
systems require robust methods of multi-target state estimation and prediction. One …