Аннотация:The tasks of coordinates, velocity and acceleration determination by means of GPS measurements are considered in the airborne gravimetry’s applications.
The developed algorithms give the following opportunites:
• The determination of position using carrier phase observables;
• The independent determination of velocity and acceleration using differential Doppler and carrier phase observables.
The peculiarities the obtained algorithms for data processing consist of
• Dual, single ( L1 and L2) frequency and ionosphere-free carrier phases solutions are used for mutual cross checking.
• Doppler solutions are used as initial approximations for corresponding carrier phase solutions.
• Simultaneous processing of measurements from several Base stations and/or on-board GPS receivers.
The developed methods have been implemented in the software, which is successfully used in commercial surveys for data processing of gravimeter systems GT-1A and GRAVITON-M.