Magnetics Business & Technology - March/April 2025 - 25

INDUSTRY NEWS
SandboxAQ research has focused on developing robust and reliable
navigation systems that can operate in challenging environments,
such as those with significant magnetic or intentional GPS
interference.
One significant contribution is the development of platform-agnostic
denoising models for MagNav systems, as detailed in a paper
presented at the June 2024 ION Joint Navigation Conference by
Kimberly Moore et al. ( " Multi-Aircraft Generalizability of Platform
Denoising Models for Magnetic Navigation " ). These models leverage
advanced machine learning techniques to effectively remove
noise and interference from magnetic sensor data, enabling accurate
and precise navigation.
Additionally, SandboxAQ pioneered the use of physics-informed
machine learning techniques to calibrate aeromagnetic compensation,
as described in a NeurIPS 2023 Workshops paper by
Favour Nerrise et al. ( " Physics-Informed Calibration of Aeromagnetic
Compensation in Magnetic Navigation Systems using Liquid
Time-Constant Networks " ). By incorporating physical principles
into the learning process, SandboxAQ has achieved more accurate
and reliable calibration, leading to improved navigation
performance.
Its most recent research, presented at the December 2024 American
Geophysical Union AGU24 meeting, explores the use of AI
to mitigate the impact of magnetospheric-ionospheric signals on
magnetic navigation (Regupathi Angappan et al.). By leveraging
the power of AI, SandboxAQ has developed innovative techniques
to identify and correct for these disturbances, ensuring robust
and reliable navigation even in the presence of extreme magnetic
conditions. These advancements have the potential to revolutionize
a wide range of applications, from autonomous vehicles to
underwater exploration.
Key features of AQNav include:
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any location.
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Unjammable/Unspoofable Worldwide Signal: Because
Earth's crustal magnetic field is omnipresent and unjammable, it
provides unfettered access and a persistent, trusted signal from
All-Weather: AQNav is not influenced by weather or lighting
conditions, making it an effective complement to other navigation
techniques.
*
Terrain Agnostic: AQNav does not require visual ground
features, making it a valuable tool for navigation in the air, over
open water, on remote terrain, even underwater or underground.
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reduce a vehicle's detectability.
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Passive Technology: AQNav passively receives geomagnetic
data and does not emit or reflect any signals, which helps
Versatile, Adaptable Technology: AQNav operates at
room temperature, requires no shielding, and has a modular architecture
that can be integrated into a wide variety of platforms, from
single-engine planes to multi-engine airliners.
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Seamless Integration: AQNav can interface with existing
navigation systems, including inertial, visual, satellite, and other
emerging technologies, creating a " system of systems " approach
to ensure safe and accurate navigation.
For more information see https://www.sandboxaq.com/solutions/
aqnav.
With ISO / IEC 17025:2017 accredited calibration laboratories in the USA and Germany
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MAGNET-PHYSIK, Dr. Steingroever GmbH, Germany
Tel: +49 2236 3919-0
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March/April 2025 * Magnetics Business & Technology 25
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Magnetics Business & Technology - March/April 2025

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