Statistics – Applications
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980rspta.294..261b&link_type=abstract
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 294, Issue 1410,
Statistics
Applications
Scientific paper
The Institut Geographique National (I.G.N.), the French national geodetic and mapping agency, started in 1974 a research and development programme on Doppler satellite techniques, in order to determine their accuracy and capabilities, to investigate possible geodetic uses and to establish various operational positioning methods, according to a cost: precision ratio. A review is given to the current (1978) status and investigations planned for instrumentation and field facilities, modelling and data processing techniques, and geodetic applications. As a general result from several comparisons, the precision of position computed with the I.G.N. software (GDP) is 3 m for single point positioning (s.p.p.) with the use of broadcast ephemerides (option I), and 1 m with s.p.p. with DMA precise ephemerides (option II) and short arc positioning (option III). Present investigations seem to indicate that the precision of option II can be improved to a few decimetres, whereas option III in its present formulation has some limitations.
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