Results 91 to 100 of about 18,768,627 (118)

AltBOC navigation signal quality assessment and measurement

open access: yesJournal of Measurement Science and Instrumentation, 2013
In order to ensure that Chinese BeiDou satellite navigation system runs smoothly,the assessment of signal quality has become a significant task.Alternative binary offset carrier(AltBOC)is BeiDou B2 frequency signal.The acquisition of BeiDou signal is ...
MENG Qing-feng   +2 more
doaj  

Propagation Problems in Satellite Navigation [PDF]

open access: yes, 2007
The presentation provides an overview about the mechanisms of the main propagation phenomena which are relevant for satellite navigation, their magnitude, temporal and regional variation and standard methods to correct and mitigate ...
Hornbostel, Achim
core  

The Research, Development, and Acquisition Process for the Beidou Navigation Satellite Program [PDF]

open access: yes, 2014
The Beidou navigation satellite system is regarded as a strategic system intended to diminish Chinese reliance on the U.S. Global Positioning System (GPS). Support for Beidou, however, has not always been firm or universal.
Besha, Patrick   +2 more
core  

Scheme for Improving LKJ System Automatic Level

open access: yes机车电传动, 2013
Present status of LKJ system application was stated, and LKJ system automatic level proving schemes were proposed with introduction of computer control priority mode, vehicle-ground transfer technology, Beidou Navigation Satellite system, wire-less ...
YANG Qing-xiang, YANG Hui-xin
doaj  

Design and experiment of onboard laser time transfer in Chinese Beidou navigation satellites

open access: yes, 2013
High-precision time synchronization between satellites and ground stations plays the vital role in satellite navigation system. Laser time transfer (LTT) technology is widely recognized as the highest accuracy way to achieve time synchronization derived ...
Meng, Wendong   +11 more
core  

The mixed-receiver BeiDou inter-satellite-type bias and its impact on RTK positioning

open access: yes, 2014
The inter-satellite-type bias (ISTB) is a receiver-dependent hardware delay/bias between different satellite types. Our recent research revealed the existence of nonzero mixed-receiver phase ISTBs for the Chinese BeiDou system. Triggered by this finding,
J. Sleewaegen (23381326)   +3 more
core  

Alternative satellite navigation systems

open access: yes, 2014
The article focuses on emerging alternative civil satellite navigation systems, particularly on the current status of Galileo and Beidou systems.
PAONNI Matteo
core   +1 more source

Assessment of Radio Frequency Compatibility for New Radio Navigation Satellite Service Signal Design in the L6-Band

open access: yes
The L- and S-bands are becoming increasingly congested with the modernization of radio navigation satellite service (RNSS) systems and the development of a new satellite navigation system.
Jong-Hoon Won, Subin Lee, Kahee Han
core   +1 more source

Design of an intelligent Navigation System for Unmanned Rice Transplanters Based on the Beidou Satellite Navigation System

open access: yes
Agricultural mechanization is a vital indicator of agricultural modernization. Historical developments in China and abroad demonstrate that agricultural machinery has fundamentally transformed production methods.
Jialu Chen, Kaixin Chen, Xinyu Qiu
core   +1 more source

gLAB upgrade with BeiDou navigation system signals

open access: yes
The gLAB tool suit is an educational and professional multipurpose GNSS data processing software. It has been developed by gAGE/UPC under a contract of the European Space Agency (ESA). The current version of gLAB allows full GPS data processing with High
Wang, Xiaoli
core  

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