Preliminary Results of a GPS/INS Airborne Gravimetry Experiment Over the German Alps

作者: Ch. Gerlach , R. Dorobantu , Ch. Ackermann , N.S. Kjørsvik , G. Boedecker

DOI: 10.1007/978-3-642-10634-7_1

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摘要: Airborne gravimetry using a combination of GPS and strapdown inertial measurement unit (IMU) is well known method. We will present preliminary results flight campaign that was carried out in Cessna 172 with navigation grade IMU (iNAV-RQH) over \(20 \times 20\,\textrm{km}\) region the German Alps. The experiment can be considered an extreme case dense mapping very local area rough gravity field small aircraft. recovered disturbance along trajectory checked for internal consistency at crossover points. This indicates precision solution range 3 mgal spatial resolution 2 km. Besides classical DGPS we also make use absolute Precise Point Positioning (PPP), which useful alternative if it comes to post-processing solutions, especially remote areas. indicate accuracy PPP suited airborne gravimetry.

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