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Numerical Analysis of GNSS Signal Outage Effect on EOPs Solutions Using Tightly Coupled GNSS/IMU Integration : A Simulated Case Study in Sweden
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- Jouybari, Arash (författare)
- Högskolan i Gävle,Samhällsbyggnad
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- Bagherbandi, Mohammad, Professor (författare)
- Högskolan i Gävle,KTH,Lantmäteri – fastighetsvetenskap och geodesi,Univ Gävle, Fac Engn & Sustainable Dev, SE-80176 Gävle, Sweden,Samhällsbyggnad
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- Nilfouroushan, Faramarz, Senior Lecturer, 1968- (författare)
- Högskolan i Gävle,Samhällsbyggnad,Lantmäteriet
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(creator_code:org_t)
- MDPI AG, 2023
- 2023
- Engelska.
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Ingår i: Sensors. - : MDPI AG. - 1424-8220. ; 23:14
- Relaterad länk:
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https://doi.org/10.3...
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https://hig.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The absence of a reliable Global Navigation Satellite System (GNSS) signal leads to degraded position robustness in standalone receivers. To address this issue, integrating GNSS with inertial measurement units (IMUs) can improve positioning accuracy. This article analyzes the performance of tightly coupled GNSS/IMU integration, specifically the forward Kalman filter and smoothing algorithm, using both single and network GNSS stations and the post-processed kinematic (PPK) method. Additionally, the impact of simulated GNSS signal outage on exterior orientation parameters (EOPs) solutions is investigated. Results demonstrate that the smoothing algorithm enhances positioning uncertainty (RMSE) for north, east, and heading by approximately 17-43% (e.g., it improves north RMSE from 51 mm to a range of 42 mm, representing a 17% improvement). Orientation uncertainty is reduced by about 60% for roll, pitch, and heading. Moreover, the algorithm mitigates the effects of GNSS signal outage, improving position uncertainty by up to 95% and orientation uncertainty by up to 60% using the smoothing algorithm instead of the forward Kalman filter for signal outages up to 180 s.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- GNSS
- INS integration
- forward Kalman filter
- smoothing algorithm
- tightly coupled
- PPK
- virtual reference station
- aerial photogrammetry
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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