Title :
Airborne gravimetry and the Global Positioning System
Author :
Kleusberg, Alfred ; Peyton, Derrick ; Wells, David
Author_Institution :
Geodetic Res. Lab., New Brunswick Univ., Fredericton, NB, Canada
Abstract :
The capabilities of using precise range and range rate measurements to satellites of the Global Positioning System (GPS) for the determination of the platform position and its time derivatives are explored. The accuracy requirements for airborne gravimetry are reviewed, and different schemes for correcting the gravimeter measurements are presented. It is shown that the separation of gravitation and inertial accelerations in the measurements imposes the most stringent requirements on the GPS measurement accuracy and the GPS data processing. The results of GPS data reduction show that GPS receivers allow fixed-wing-aircraft gravity data reduction at the milligal (10-5 m/s2) accuracy level for a spatial gravity field resolution of five kilometers
Keywords :
acceleration measurement; aircraft instrumentation; geophysical techniques; gravimeters; gravity; radionavigation; satellite relay systems; Global Positioning System; airborne gravimetry; data reduction; fixed-wing-aircraft gravity data; geophysical techniques; gravitational accelerations; inertial accelerations; numerical differentiation; platform acceleration; platform position; range rate measurements; time derivatives; Acceleration; Accelerometers; Aircraft; Earth; Geophysical measurements; Global Positioning System; Gravity measurement; Level measurement; Position measurement; Spatial resolution;
Conference_Titel :
Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE
Conference_Location :
Las Vegas, NV
DOI :
10.1109/PLANS.1990.66188
