The application of NAVSTAR Differential GPS to civil helicopter operations [PDF]
Principles concerning the operation of the NAVSTAR Global Positioning Systems (GPS) are discussed. Selective availability issues concerning NAVSTAR GPS and differential GPS concepts are analyzed.
Beser, J., Parkinson, B. W.
core +1 more source
Validation of GPS-Based Monitoring and Remote Sensing of Ice-Shelf and Ice-Sheet Movement Changes. [PDF]
Sensors (Basel), 2021 Li X +6 more
europepmc +1 more source
Study of spacecraft direct readout meteorological systems [PDF]
Characteristics are defined of the next generation direct readout meteorological satellite system with particular application to Tiros N. Both space and ground systems are included.
Bartlett, R., Elam, W., Hoedemaker, R.
core +1 more source
Research on Improving Satellite Positioning Precision Based on Multi-Frequency Navigation Signals. [PDF]
Sensors (Basel), 2022 Kong T, Ma L, Ai G.
europepmc +1 more source
Galileo-Based Doppler Shifts and Time Difference Carrier Phase: A Static Case Demonstration. [PDF]
Sensors (Basel), 2023 Gioia C, Angrisano A, Gaglione S.
europepmc +1 more source
GNSS Ephemeris with Graceful Degradation and Measurement Fusion [PDF]
A method for providing an extended propagation ephemeris model for a satellite in Earth orbit, the method includes obtaining a satellite's orbital position over a first period of time, applying a least square estimation filter to determine coefficients ...
Garrison, James Levi +1 more
core +1 more source
REFSAT/GPS breadboard: Test terminal hardware design report [PDF]
All users of the NAVSTAR Global Positioning System (GPS) located within a rather large geographical area are currently required to perform a number of identical, common operations in order to accomplish a navigation "fix" (additional "location dependent"
core +1 more source
DMA precise time and time interval requirements [PDF]
Defense Mapping Agency timing requirements ranging from milliseconds to tenths of nanoseconds and its use of geodetic astronomy and satellite geodesy programs are discussed in ...
Carnahan, R. H.
core +1 more source
Realtime Precise Orbit Determination Technology for LEO Mega-Constellation
天地一体化信息网络Supported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate
Zhen LI, Chuang SHI
doaj +2 more sources
PPP/INS Tight Integration with BDS-3 PPP-B2b Service in the Urban Environment. [PDF]
Sensors (Basel), 2023 Lai L +5 more
europepmc +1 more source