Results 101 to 110 of about 3,469 (207)

The Navstar GPS master control station's Kalman filter experience [PDF]

The Navstar Global Positioning System (GPS) is a highly accurate space based navigation system providing all weather, 24 hour a day service to both military and civilian users.
Scardera, Michael P.
core   +1 more source

Analysis of navigation performance for the Earth Observing System (EOS) using the TDRSS Onboard Navigation System (TONS) [PDF]

Use of the Tracking and Data Relay Satellite System (TDRSS) Onboard Navigation System (TONS) was proposed as an alternative to the Global Positioning System (GPS) for supporting the Earth Observing System (EOS) mission.
Elrod, B., Folta, David C., Kapoor, A., Liu, K.   +3 more
core   +1 more source

Information sciences experiment system [PDF]

The rapid expansion of remote sensing capability over the last two decades will take another major leap forward with the advent of the Earth Observing System (Eos).
Benz, Harry F., Bowker, David E., Hendricks, Herbert D., Katzberg, Stephen J., Murray, Nicholas D.   +4 more
core   +1 more source

GPS ephemeris message broadcast simulation

, 2005
The warfighter constantly needs increased accuracy from GPS and a means to increasing this accuracy to the decimeter level is a broadcast ephemeris message containing GPS satellite orbit and clock corrections. The ephemeris message is produced at the GPS MCS (Master Control Station) which receives GPS signal data from NGA and Air Force worldwide and ...
openaire   +1 more source

Networked differential GPS system [PDF]

, 1994
An embodiment of the present invention relates to a worldwide network of differential GPS reference stations (NDGPS) that continually track the entire GPS satellite constellation and provide interpolations of reference station corrections tailored for ...
Kalafus, Rudolph M., Loomis, Peter V. W., Mueller, K. Tysen, Sheynblat, Leonid   +3 more
core   +1 more source

SISRE of BDS-3 MEO: Evolution as Well as Comparison between D1 and B-CNAV (B-CNAV1, B-CNAV2) Navigation Messages

Remote Sensing
The signal-in-space range error (SISRE) has a direct impact on the performance of global navigation satellite systems (GNSSs). It is an important indicator of navigation satellite space server performance.
Zhenghua Dong, Songlin Zhang
doaj   +1 more source

Differential GPS for small UAS using consumer-grade single-frequency receivers [PDF]

, 2013
Consumer-grade single-frequency GPS receivers with their known limitations are the predominant means of localization for small Unmanned Aircraft Systems (UAS).
Bolting, Jan, Defaÿ, François, Moschetta, Jean-Marc   +2 more
core  

Accuracy Study of a Single Frequency Receiver Using a Combined GPS/GALILEO Constellation [PDF]

, 2005
As the date of availability of GALILEO approaches, more and more interest appears to pre-evaluate the accuracy of GALILEO and combined GPS+ GALILEO receivers. The majority of simulations made are based on the general use of UERE (often presented as a
Belabbas, Boubeker, Hornbostel, Achim, Sadeque, Mohammed Zafer   +2 more
core  

TEMPO2, a new pulsar timing package. I: Overview

, 2006
Contemporary pulsar timing experiments have reached a sensitivity level where systematic errors introduced by existing analysis procedures are limiting the achievable science.
Backer, Backer, Bell, Blandford, Damour, Damour, Feissel, Folkner, Foster, Foster, G. B. Hobbs, Guinot, Harada, Hilton, Hobbs, Hobbs, Irwin, Issautier, Jenet, Kopeikin, Kopeikin, Lange, Lieske, Lorimer, Lyne, Lyne, Lyne, Manchester, McCarthy, Petit, Phillips, Press, R. N. Manchester, R. T. Edwards, Ryba, Seiber, Seidelmann, Shapiro, Shklovskii, Spitzer, Splaver, Stairs, Standish, Standish, Taylor, Taylor, van der Swaluw, Wall, Wang, Wex, Wolszczan   +50 more
core   +1 more source

Satellite Emission Range Inferred Earth Survey (SERIES) project [PDF]

The Global Positioning System (GPS) was developed by the Department of Defense primarily for navigation use by the United States Armed Forces. The system will consist of a constellation of 18 operational Navigation Satellite Timing and Ranging (NAVSTAR ...
Buennagel, L. A., Macdoran, P. F., Neilan, R. E., Spitzmesser, D. J., Young, L. E.   +4 more
core   +1 more source