1
Charles C Counselman III: System for simultaneously deriving position information from a plurality of satellite transmissions. Western Atlas International, E Eugene Thigpen, May 7, 1991: US05014066 (82 worldwide citation)

A method and a system are disclosed for measuring the baseline vector b between a pair of survey marks on the ground by radio interferometry using radio signals broadcast from the earth orbiting satellites of the NAVSTAR Global Positioning System (GPS), the radio signals broadcast by the satellites ...


2
Charles C Counselman III: System for simultaneously deriving position information from a plurality of satellite transmissions. Western Atlas International, E Eugene Thigpen, March 16, 1993: US05194871 (38 worldwide citation)

A method and a system are disclosed for measuring the baseline vector b between a pair of survey marks on the ground by radio interferometry using radio signals broadcast from the earth orbiting satellites of the NAVSTAR Global Positioning System (GPS), the radio signals broadcast by the satellites ...