Results 101 to 110 of about 166,231 (222)

A Robust Method to Detect BeiDou Navigation Satellite System Orbit Maneuvering/Anomalies and Its Applications to Precise Orbit Determination

Sensors, 2017
The failure to detect anomalies and maneuvering of the orbits of navigation satellite sensors will deteriorate the performance of positioning and orbit determination.
Fei Ye, Yunbin Yuan, Bingfeng Tan, Jikun Ou   +3 more
doaj   +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

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

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

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

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

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

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

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