Results 101 to 110 of about 167,096 (220)

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

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

A multi-satellite orbit determination problem in a parallel processing environment [PDF]

The Engineering Orbit Analysis Unit at GE Valley Forge used an Intel Hypercube Parallel Processor to investigate the performance and gain experience of parallel processors with a multi-satellite orbit determination problem.
Anderle, R. J., Deakyne, M. S.
core   +1 more source

A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods

Sensors, 2019
Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation systems ...
Zhiwei Qin, Guanwen Huang, Qin Zhang, Le Wang, Xingyuan Yan, Yanchao Kang, Xiaolei Wang, Shichao Xie   +7 more
doaj   +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

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  

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

A two-step method to detect broadcast ephemeris unavailable periods caused by BeiDou satellite orbital maneuvers

Geodesy and Geodynamics, 2023
Jingjing Wang, Chao Zhou, Zhixuan Sun
semanticscholar   +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