Pivot-Only Azimuthal Control and Attitude Estimation of Balloon-borne Payloads

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Hauptverfasser: Voyer, Philippe, Tartakovsky, Simon, Benton, Steven J., Jones, William C.
Format: Preprint
Veröffentlicht: 2025
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author Voyer, Philippe
Tartakovsky, Simon
Benton, Steven J.
Jones, William C.
author_facet Voyer, Philippe
Tartakovsky, Simon
Benton, Steven J.
Jones, William C.
contents This paper presents an attitude estimation and yaw-rate control framework for balloon-borne payloads using pivot-only actuation, motivated by the Taurus experiment. Taurus is a long-duration balloon instrument designed for rapid azimuthal scanning at approximately 30 deg/s using a motorized pivot at the flight-train connection, without a reaction wheel. We model the gondola as a rigid body subject to realistic disturbances and sensing limitations, and implement a Multiplicative Extended Kalman Filter (MEKF) that estimates attitude and gyroscope bias by fusing inertial and vector-camera measurements. A simple PI controller uses the estimated states to regulate yaw rate. Numerical simulations incorporating representative disturbance and measurement noise levels are used to evaluate closed-loop control performance and MEKF behavior under flight-like conditions. Experimental tests on the Taurus gondola validate the pivot-only approach, demonstrating stable high-rate tracking under realistic hardware constraints. The close agreement between simulation and experiment indicates that the simplified rigid-body model captures the dominant dynamics relevant for controller design and integrated estimation-and-control development.
format Preprint
id arxiv_https___arxiv_org_abs_2512_11987
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Pivot-Only Azimuthal Control and Attitude Estimation of Balloon-borne Payloads
Voyer, Philippe
Tartakovsky, Simon
Benton, Steven J.
Jones, William C.
Systems and Control
Instrumentation and Methods for Astrophysics
This paper presents an attitude estimation and yaw-rate control framework for balloon-borne payloads using pivot-only actuation, motivated by the Taurus experiment. Taurus is a long-duration balloon instrument designed for rapid azimuthal scanning at approximately 30 deg/s using a motorized pivot at the flight-train connection, without a reaction wheel. We model the gondola as a rigid body subject to realistic disturbances and sensing limitations, and implement a Multiplicative Extended Kalman Filter (MEKF) that estimates attitude and gyroscope bias by fusing inertial and vector-camera measurements. A simple PI controller uses the estimated states to regulate yaw rate. Numerical simulations incorporating representative disturbance and measurement noise levels are used to evaluate closed-loop control performance and MEKF behavior under flight-like conditions. Experimental tests on the Taurus gondola validate the pivot-only approach, demonstrating stable high-rate tracking under realistic hardware constraints. The close agreement between simulation and experiment indicates that the simplified rigid-body model captures the dominant dynamics relevant for controller design and integrated estimation-and-control development.
title Pivot-Only Azimuthal Control and Attitude Estimation of Balloon-borne Payloads
topic Systems and Control
Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2512.11987