Measuring and testing – Navigation – Take-off and landing monitors
Patent
1997-10-07
2000-05-30
Oen, William
Measuring and testing
Navigation
Take-off and landing monitors
G01C 2100
Patent
active
060678526
ABSTRACT:
An atmospheric water vapor sensing system uses Global Positioning Satellites (GPS) to determine the refractivity and Slant-path Water Vapor Delay (SWD) between an Earth-based GPS receiver and a plurality of satellite-based GPS transmitters. The system provides improved precision in position calculation measurements by eliminating the refractivity effects of water vapor. No other system inputs are required apart from conventional GPS satellite signals and conventional satellite orbit data to implement the method. SWD arises from the refractivity in the integrated atmospheric water vapor in a column of atmosphere at an acute angular line-of-sight path between the Earth-based GPS receiver and any one of the plurality of satellite-based GPS transmitters. The system is especially useful in monitoring the Earth's crustal deformation.
REFERENCES:
patent: 4310884 (1982-01-01), Roberts et al.
patent: 4463357 (1984-07-01), MacDoran
patent: 4613864 (1986-09-01), Hofgen
patent: 5065615 (1991-11-01), Hill
patent: 5428358 (1995-06-01), Gardner
patent: 5477458 (1995-12-01), Loomis
patent: 5526676 (1996-06-01), Solheim et al.
patent: 5899957 (1999-05-01), Loomis
Alber Chris D.
Rocken Christian
Solheim Fredrick S.
Ware Randolph H.
Oen William
University Corporation For Atmospheric Research
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