Results 121 to 130 of about 167,096 (220)

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  

Application of GPS tracking techniques to orbit determination for TDRS [PDF]

In this paper, we evaluate two fundamentally different approaches to TDRS orbit determination utilizing Global Positioning System (GPS) technology and GPS-related techniques. In the first, a GPS flight receiver is deployed on the TDRSS spacecraft.
Haines, B. J., Lichten, S. M., Malla, R. P., Wu, S. C.   +3 more
core   +1 more source

Real-time relative positioning of spacecraft over long baselines [PDF]

, 2014
This paper deals with the problem of real-time onboard relative positioning of low Earth orbit spacecraft over long baselines using the Global Positioning System.
Grassi M, Renga A, Tancredi U
core  

LunaNet: a Flexible and Extensible Lunar Exploration Communications and Navigation Infrastructure [PDF]

NASA has set the ambitious goal of establishing a sustainable human presence on the Moon. Diverse commercial and international partners are engaged in this effort to catalyze scientific discovery, lunar resource utilization and economic development on ...
Christe, Steven D., Cooper, La Vida D., Gramling, Cheryl J., Israel, David J., Johnson, Michael A., Mauldin, Kendall D., Mitchell, Jason W., Pulkkinen, Antti A., Roberts, Christopher J.   +8 more
core   +1 more source

The Implementation of Precise Point Positioning (PPP): A Comprehensive Review. [PDF]

Sensors (Basel), 2023
Elsheikh M, Iqbal U, Noureldin A, Korenberg M.   +3 more
europepmc   +1 more source

GPS Interferometry [PDF]

This semi-annual progress report provides an overview of the work performed during the first six months of Grant NAG 1 1423, titled 'GPS Interferometry'. The Global Positioning System (GPS) is a satellite-based positioning and timing system.
Vangrass, Frank
core   +1 more source

Performance Evaluation of CentiSpace Navigation Augmentation Experiment Satellites. [PDF]

Sensors (Basel), 2023
Chen L, Lv F, Yang Q, Xiong T, Liu Y, Yang Y, Pan H, Wang S, Liu M, He R, Zheng D, Zhang L, Jin Y.   +12 more
europepmc   +1 more source

Manual Gridding of DRIR Facsimile Pictures [PDF]

Method for manual geographical referencing of direct readout infrared radiometer data from Nimbus C ...
Smith, R. B.
core   +1 more source

Prediction of IGS RTS Orbit Correction Using LSTM Network at the Time of IOD Change. [PDF]

Sensors (Basel), 2022
Kim B, Kim J.
europepmc   +1 more source

Determination of GPS orbits to submeter accuracy [PDF]

Orbits for satellites of the Global Positioning System (GPS) were determined with submeter accuracy. Tests used to assess orbital accuracy include orbit comparisons from independent data sets, orbit prediction, ground baseline determination, and formal ...
Bertiger, W. I., Katsigris, E. C., Lichten, S. M.   +2 more
core   +1 more source