Physics – Space Physics
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983rvgsp..21...27k&link_type=abstract
Reviews of Geophysics and Space Physics, vol. 21, Feb. 1983, p. 27-40.
Physics
Space Physics
5
Atmospheric Effects, Doppler Navigation, Geodetic Accuracy, Polystation Doppler Tracking System, Satellite Navigation Systems, Satellite Orbits, Computer Programs, Computerized Simulation, Ephemeris Time, Geodynamics, Navigation Instruments, Orbital Position Estimation, Radio Navigation, Real Time Operation, Wave Propagation
Scientific paper
Numerical models and computational techniques for precision earth surface positioning using Doppler measurements of Transit satellite signals are described. Analytical techniques for interpreting signals, i.e., a beat signal and a reference signal, from Doppler geodetic instrumentation are detailed, including corrections for instrument effects and atmospheric refraction delays. Appropriate weights for the Doppler observations are formulated for obtaining minimum variance solutions. Attention is given to satellite orbit location and real-time broadcast ephemerides contained in the satellite signals. Applications of the positioning and navigational methods in Canada are discussed, noting the achievement of a 1 m accuracy for a stationary observer.
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