ORIGINAL RESEARCH article
Front. Mar. Sci.
Sec. Ocean Observation
Volume 12 - 2025 | doi: 10.3389/fmars.2025.1671083
This article is part of the Research TopicRemote Sensing Applications in Marine Ecology Monitoring and Target SensingView all 16 articles
Enhancing Sensor Accuracy in Mobile Multi-sensor Systems for Atmospheric Monitoring Using Disturbance Observer and Sensor Estimators
Provisionally accepted- Chosun University, Gwangju, Republic of Korea
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Recent progress in marine environmental monitoring has underscored the importance of equally rigorous atmospheric observations, and it has consequently focused on developing mobile sensors that improve data collection accuracy and operational flexibility. unmanned aerial vehicles (UAVs) are attractive carriers owing to their low cost and operational agility; however, the stringent size–and–weight constraints imposed on onboard sensors often translate into poor accuracy, especially under rapidly fluctuating ambient temperatures. This paper introduces a compact, lightweight composite sensor payload – readily integrable with UAVs – that preserves measurement precision down to −40 °C by embedding a disturbance observer (DOB)–based compensation algorithm directly in the sensor micro–controller, using externally sensed air temperature (via an insulated probe) as baseline data for onboard correction. The DOB continuously estimates and cancels temperature–induced bias and electromagnetic interference in real time, without hardware redundancy or external calibration during operation. High–altitude test–chamber experiments show that the proposed system lowers the temperature RMSE from 28.67 °C to 15.74 °C and raises the coefficient of determination (R2) from 0.02 to 0.76. These results confirm that DOB–assisted correction substantially enhances the robustness and reliability of lightweight UAV–compatible sensors, paving the way for high–resolution coastal–and–open–ocean ground–to–stratosphere profiling that supports coupled air–sea flux assessments for marine exploration.
Keywords: Unmanned Aerial Vehicle, mobile multi-sensor payload, upper-air profiling, Temperature compensation, air-sea flux, marineenvironmental monitoring, stratospheric observation, Disturbance observer
Received: 22 Jul 2025; Accepted: 03 Oct 2025.
Copyright: © 2025 Kim, Tullu and Jung. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Sunghun Jung, jungx148@chosun.ac.kr
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