Results 201 to 210 of about 51,700 (277)

5G Key Technologies for Helicopter Aviation Medical Rescue.

open access: yesJ Med Internet Res
Han W   +8 more
europepmc   +1 more source

Update on BeiDou Navigation Satellite System and PNT System

2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2020
BeiDou Navigation Satellite System (BDS) is one of the core GNSS providers and adheres to the “three-step” development plan to steadily promote construction. By the end of 2018, BDS had provided global services. By the end of 2019, the construction of the core constellation was completed.
Xiaochun Lu   +5 more
openaire   +3 more sources

Initial assessment of the COMPASS/BeiDou-2 regional navigation satellite system

GPS Solutions, 2012
An initial characterization and performance assessment of the COMPASS/BeiDou-2 regional navigation system is presented. Code and carrier phase measurements on up to three frequencies have been collected in March 2012 with a small regional network of monitoring stations.
Oliver Montenbruck   +2 more
exaly   +5 more sources

Carrier phase multipath mitigation for BeiDou navigation satellite system

GPS Solutions, 2014
As is true of GPS, multipath disturbance is a limiting factor for further improvements in BDS high precision positioning applications. We investigate the characteristics of multipath errors and multipath mitigation for BDS geostationary earth orbit, inclined geosynchronous orbit and medium earth orbit satellites according to their orbital repeat ...
Peng Jiang   +5 more
openaire   +3 more sources

Compact Dual-Band Wilkinson Power Divider Design Using Via-Free D-CRLH Resonators for Beidou Navigation Satellite System

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2022
A compact dual-band Wilkinson power divider (WPD) using the via-free dual-composite right/left-handed (D-CRLH) resonators is presented for application in the Beidou navigation satellite system in this brief.
Taotao Huang   +7 more
semanticscholar   +1 more source

Evaluation of Multisignal and Multiorbit Multipath Reflectometry of BeiDou Navigation Satellite System

IEEE Geoscience and Remote Sensing Letters, 2023
Global navigation satellite system multipath reflectometry (GNSS-MR) has been validated for the estimation of water level. More satellites and signals would aid the accuracy and sampling rate of GNSS-MR.
Xiaolei Wang, Xiufeng He
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy