Results 81 to 90 of about 174,298 (206)

Human Performance Analysis of Processes for Retrieving Beidou Satellite Navigation System During Breakdown. [PDF]

Front Psychol, 2020
Wu M, Zhang L, Li WC, Wan L, Lu N, Zhang J.   +5 more
europepmc   +1 more source

User manual and programmer reference manual for the ATS-6 navigation model AOIPS and McIDAS versions, part 2 [PDF]

Development of a navigation system for a given satellite is reported. An algorithm for converting a satellite picture element location to earth location and vice versa was defined as well as a procedure for measuring the set of constants needed by the ...
Chatters, G. C., Kuhlow, W. W.
core   +1 more source

MISAT: Designing a Series of Powerful Small Satellites Based upon Micro Systems Technology [PDF]

, 2007
MISAT is a research and development cluster which will create a small satellite platform based on Micro Systems Technology (MST) aiming at innovative space as well as terrestrial applications.
Gill, E.,, Monna, G.L.E.,, Scherpen, J.M.A.,, Verhoeven, C.J.M.,   +3 more
core   +2 more sources

Analysis of the Dihedral Corner Reflector’s RCS Features in Multi-Resource SAR

Applied Sciences
Artificial corner reflectors are widely used in the vegetated landslide for time series InSAR monitoring due to their permanent scattering features. This paper investigated the RCS features of a novel dihedral CR under multi-resource SAR datasets. An RCS
Jie Liu, Tao Li, Sijie Ma, Yangmao Wen, Yanhao Xu, Guigen Nie   +5 more
doaj   +1 more source

Study of the global positioning system for maritime concepts/applications: Study of the feasibility of replacing maritime shipborne navigation systems with NAVSTAR [PDF]

A geostationary reference satellite (REFSAT) that broadcasts every four seconds updated GPS satellite coordinates was developed. This procedure reduces the complexity of the GPS receiver.
Huston, W., Winn, C. B.
core   +1 more source

Key Technologies of Real-Time Location Service in Satellite Navigation and Positioning Network Based on Internet of Things.

Comput Intell Neurosci, 2022
Ai Y, Cui X, Yuan D.
europepmc   +1 more source

NASA tracking ship navigation systems [PDF]

The ship position and attitude measurement system that was installed aboard the tracking ship Vanguard is described. An overview of the entire system is given along with a description of how precise time and frequency is utilized.
Mckenna, J. J.
core   +1 more source

Overview of the development of satellite navigation blanket interference monitoring

Frontiers in Physics
Satellite navigation interference monitoring is an important means to effectively evaluate interference and ensure the normal operation of global navigation satellite system (GNSS).
Yinhui He, Yinhui He, Baiyu Li, Baiyu Li, Jinping Chen, Zhi Wang, Wei Xiao, Wei Xiao, Zukun Lu, Zukun Lu   +9 more
doaj   +1 more source

Plasmaspheric effects on one way satellite timing signals [PDF]

The effects of the ionospheric retardation of satellite-emitted timing signals was presented. The retardation at the navigation frequencies, which is proportional to the total ionospheric electron content (TEC), was determined by Faraday polarization ...
Gorman, F. J., Jr., Soicher, H.
core   +1 more source

Doppler Positioning with LEO Mega-Constellation: Equation Properties and Improved Algorithm

Remote Sensing
Doppler positioning, as an early form of positioning, has regained significant research interest in the context of Low Earth Orbit (LEO) satellites.Given the LEO mega-constellation scenario, the objective function of Doppler positioning manifests ...
Zichen Xu, Zongnan Li, Xiaohui Liu, Zhimin Ji, Qianqian Wu, Hao Liu, Chao Wen   +6 more
doaj   +1 more source