Results 21 to 30 of about 68,626 (291)

APPLICATION OF SATELLITE STATION DIFFERENTIAL TECHNOLOGY IN REMOTE AREAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Aiming at the situation that there is no network and communication signal in remote areas, the idea of using satellite station difference technology to obtain relatively accurate positioning is proposed.
T. Zhou, H. Chen, J. Liu, L. Lv
doaj   +1 more source

Self-organising satellite constellation in geostationary Earth orbit [PDF]

open access: yes, 2015
This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla   +3 more
core   +1 more source

DVB-RCS return link radio resource management for broadband satellite systems using fade mitigation techniques at ka band [PDF]

open access: yes, 2008
Current Broadband Satellite systems supporting DVB-RCS at Ku band have static physical layer in order not to complicate their implementation. However at Ka band frequencies and above an adaptive physical layer wherein the physical layer parameters are ...
Laurent Castanet   +7 more
core   +1 more source

Outage Analysis of Hybrid Satellite-Terrestrial Cooperative Network with Best Relay Selection [PDF]

open access: yes, 2012
In this paper, we study the performance of a downlink hybrid satellite-terrestrial cooperative network. The decode-andforward scheme is used and a selection of the best relay terminal is implemented.
Benoit Escrig   +5 more
core   +1 more source

An Adaptive Low-Cost INS/GNSS Tightly-Coupled Integration Architecture Based on Redundant Measurement Noise Covariance Estimation

open access: yesSensors, 2017
The main objective of the introduced study is to design an adaptive Inertial Navigation System/Global Navigation Satellite System (INS/GNSS) tightly-coupled integration system that can provide more reliable navigation solutions by making full use of an ...
Zheng Li   +3 more
doaj   +1 more source

Soil Moisture Retrieval Using GNSS-IR Based on Empirical Modal Decomposition and Cross-Correlation Satellite Selection

open access: yes, 2023
Global Navigation Satellite System interferometric reflectometry (GNSS-IR), as a new remote sensing detection technology, can retrieve surface soil moisture (SM) by separating the modulation terms from the effective signal-to-noise ratio (SNR) data ...
Xingyong Liang   +9 more
core   +1 more source

Dynamic optimization of intersatellite link assignment based on reinforcement learning

open access: yesInternational Journal of Distributed Sensor Networks, 2022
Intersatellite links can reduce the dependence of satellite communication systems on ground networks, reduce the number of ground gateways, and reduce the complexity and investment of ground networks, which are important future trends in satellite ...
Weiwu Ren   +4 more
doaj   +1 more source

Some implications of sampling choices on comparisons between satellite and model aerosol optical depth fields [PDF]

open access: yes, 2010
The comparison of satellite and model aerosol optical depth (AOD) fields provides useful information on the strengths and weaknesses of both. However, the sampling of satellite and models is very different and some subjective decisions about data ...
P. I. Palmer   +18 more
core   +1 more source

Distributed Relay Selection Strategy for Satellite-terrestrial Cooperative System Based on Fairness [PDF]

open access: yesJisuanji gongcheng, 2016
A distributed relay selection strategy based on Amplify and Forward(AF) mode is proposed for the unfairness between relay nodes in satellite-terrestrial cooperative system.It analyzes the Land Mobile Satellite(LMS) channel,evaluates the closed-form ...
CHEN Liuwei,LIANG Jun,ZHU Wei
doaj   +1 more source

Bayesian Approach To Satellite Selection

open access: yes, 2015
Publication in the conference proceedings of EUSIPCO, Tampere, Finland ...
Toni Vartiainen   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy