3 papers
eess.SY2026
Fully Multiplicative Attitude and Orbit Determination for Deep space Navigation
Ridma Ganganath, Simone Servadio
This paper develops a geometry-consistent fully multiplicative unscented Kalman filter (FM-UKF) for joint spacecraft attitude--orbit estimation with simultaneous dual star-tracker…
eess.SY2026
Compensating Star-Trackers Misalignments with Adaptive Multi-Model Estimation
Ridma Ganganath, Simone Servadio, David Daeyoung Lee
This paper presents an adaptive multi-model framework for jointly estimating spacecraft attitude and star-tracker misalignments in GPS-denied deep-space CubeSat missions. A Multipl…
eess.SY2025
Star Tracker Misalignment Compensation in Deep Space Navigation Through Model-Based Estimation
Ridma Ganganath, Simone Servadio, David Lee
This work presents a novel adaptive framework for simultaneously estimating spacecraft attitude and sensor misalignment. Uncorrected star tracker misalignment can introduce signifi…