Results 91 to 100 of about 3,314 (215)

Autonomous satellite orbit determination during the development phases of the global positioning system [PDF]

An onboard navigation system was developed to aid the design and evaluation of algorithms used in autonomous satellite navigation with Global Positioning System (GPS) data. The performance of the algorithms designed for a GPS Receiver/Processor Assembly (
Dunham, J. B.
core   +1 more source

Backpack VLBI terminal with subscentimeter capability [PDF]

Backpack portable equipment was developed to measure vector baseline from approximately 1 km to 100 km in length with subcentimeter to few centimeter accuracy. The equipment design features as well as the instrumentation specifications are discussed.
Connselman, C. C., III, Cox, D. B., Jr., Greenspan, R. L., Shapiro, I. I.   +3 more
core   +1 more source

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

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

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

Inter-frequency Bias Estimation for the GPS Monitor Station Network [PDF]

, 2008
The inter-frequency bias (IFB) is present in all dual frequency combinations of GPS pseudorange and carrier phase observables. It is caused by the path dependent signal delays in both the satellite and receiver.
Bishop, Robert H, Harris, R. Benjamin, Holaschutz, Donny, Tolman, Brian   +3 more
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

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

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

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