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5 papers · 1 filter

eess.SY2026

Observability Conditions and Filter Design for Visual Pose Estimation via Dual Quaternions

Nicholas B. Andrews, Kristi A. Morgansen

This paper presents a dual quaternion framework for 6-DOF visual target tracking that addresses key limitations of perspective-n-point (PP) solvers: sensitivity to noise and out…

eess.SY2025

Relative Pose Observability Analysis Using Dual Quaternions

Nicholas B. Andrews, Kristi A. Morgansen

Relative pose (position and orientation) estimation is an essential component of many robotics applications. Fiducial markers, such as the AprilTag visual fiducial system, yield a…

eess.SY2025

Sensor Placement on a Cantilever Beam Using Observability Gramians

Natalie L. Brace, Nicholas B. Andrews, Jeremy Upsal +1

Working from an observability characterization based on output energy sensitivity to changes in initial conditions, we derive both analytical and empirical observability Gramian to…

eess.SY2025

Optimal Fiducial Marker Placement for Satellite Proximity Operations Using Observability Gramians

Nicholas B. Andrews, Kristi A. Morgansen

This paper investigates optimal fiducial marker placement on the surface of a satellite performing relative proximity operations with an observer satellite. The absolute and relati…

eess.SY2024

Sensor Placement for Flapping Wing Model Using Stochastic Observability Gramians

Burak Boyacıoğlu, Mahnoush Babaei, Amanuel H. Mamo +3

Systems in nature are stochastic as well as nonlinear. In traditional applications, engineered filters aim to minimize the stochastic effects caused by process and measurement nois…