Methodology of Airborne Gravimetry Surveying and Strapdown Gravimeter Data Processing

The paper presents a methodology of preparing and conducting airborne gravimetry survey using an inertial measuring unit (IMU) or strapdown inertial navigation system as airborne gravimeter. We also discuss the key aspects of developing appropriate postprocessing algorithms and software and their ap...

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Bibliographic Details
Published in:Gyroscopy and navigation (Online) 2023-03, Vol.14 (1), p.36-47
Main Authors: Golovan, A. A., Vyazmin, V. S.
Format: Article
Language:English
Subjects:
Accelerometers
Aerospace Technology and Astronautics
Algorithms
Data analysis
Data processing
Doppler sonar
Engineering
Geophysics/Geodesy
Gravimeters
Gravimetry
Gravity meters
Gyroscopes
Inertial navigation
Inertial platforms
Methodology
Methods
Navigation
Navigation systems
Strapdown inertial navigation
Surveying
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Summary:The paper presents a methodology of preparing and conducting airborne gravimetry survey using an inertial measuring unit (IMU) or strapdown inertial navigation system as airborne gravimeter. We also discuss the key aspects of developing appropriate postprocessing algorithms and software and their application to gravimeter raw data processing. Solving the strapdown inertial airborne gravimetry problem, we use readings of the IMU sensors (accelerometers and gyroscopes) as primary information. The second equally important source of information is raw (pseudorange, Doppler pseudorange rate, and carrier phase) measurements from the GNSS receivers on board the aircraft and on the ground. The developed methodology, algorithms, and practical recommendations presented in the paper are based on the authors’ long-term experience in airborne gravimetry.
ISSN:2075-1087
2075-1109
DOI:10.1134/S2075108723010029