Associations of spatial mobility with sexual risk behaviors among young men who have sex with men in New York City: A global positioning system (GPS) study. [PDF]
Kim B +5 more
europepmc +1 more source
Ambiguity of Residual Constraint-Based Precise Point Positioning with Partial Ambiguity Resolution under No Real-Time Network Corrections Using Real Global Positioning System (GPS) Data. [PDF]
Qin H, Liu P, Cong L, Xue X.
europepmc +1 more source
Integrated avionics reliability [PDF]
The integrated avionics reliability task is an effort to build credible reliability and/or performability models for multisensor integrated navigation and flight control.
Alikiotis, Dimitri
core +1 more source
Precise near-earth navigation with GPS: A survey of techniques [PDF]
The tracking accuracy of the low earth orbiters (below about 3000 km altitude) can be brought below 10 cm with a variety of differential techniques that exploit the Global Positioning System (GPS). All of these techniques require a precisely known global
Wu, J., Wu, S. C., Yunck, T. P.
core +1 more source
Precise orbit determination for NASA's earth observing system using GPS (Global Positioning System) [PDF]
An application of a precision orbit determination technique for NASA's Earth Observing System (EOS) using the Global Positioning System (GPS) is described.
Williams, B. G.
core +1 more source
Applicability of relative GPS to automated rendezvous between the space shuttle and space station [PDF]
The purpose of this study is to determine the adequacy of the Global Positioning System (GPS) in providing relative navigation for automated rendezvous and proximity operations.
Christofferson, Ann, Clark, Fred D.
core +1 more source
Processing Satellite Data for Slant Total Electron Content Measurements [PDF]
A method, system, and apparatus provide the ability to estimate ionospheric observables using space-borne observations. Space-borne global positioning system (GPS) data of ionospheric delay are obtained from a satellite.
Komjathy, Attila +3 more
core +1 more source
Office of Spaceflight Standard Spaceborne Global Positioning System (GPS) user equipment project [PDF]
The Global Positioning System (GPS) provides the following: (1) position and velocity determination to support vehicle GN&C, precise orbit determination, and payload pointing; (2) time reference to support onboard timing systems and data time tagging; (3)
Saunders, Penny E.
core +1 more source
Case: the Global Positioning Systems (GPS)
This case uses the development of the Global Positioning System (GPS) to help students develop skills related to decision-making using cost-benefit analysis (CBA). It is the purpose of cost-benefit analysis to weigh the benefits (or justification) of an investment or policy against the potential costs of the investment (or other alternatives).
Cunha, Jesse M., LoPiccalo, Katherine
openaire +1 more source

