Results 21 to 30 of about 1,132,292 (311)

Correlation of Virtual Aids to Navigation to the Physical Environment [PDF]

open access: yesTransNav, 2016
Virtual electronic aids to navigation are being introduced into the present short range aids to navigation system in the form of Automated Information System radio-based aids. Research is also underway into the development of their equivalents for use in
R. Glenn Wright, Michael Baldauf
doaj   +1 more source

Sensor Position Estimation Method for IoT Using Mobile Reference Node

open access: yesIEEE Access, 2020
The paper proposes an innovative method of locating objects for the Internet of Things (IoT). The proposed method allows the position of a fixed measuring sensor (MS) to be estimated using one mobile base station with a known position moving around the ...
Jacek Stefanski, Jaroslaw Sadowski
doaj   +1 more source

Positioning in a Multipath Channel Using OFDM Signals With Carrier Phase Tracking

open access: yesIEEE Access, 2020
In developing a high accuracy terrestrial radio navigation system, as a complement to a global navigation satellite system (GNSS), it is recognized that the performance of time delay estimation is proportional to, and thereby limited by, the signal ...
Han Dun   +2 more
doaj   +1 more source

Mobile complex of electronic countermeasures of satellite navigation systems for unmanned aerial vehicles

open access: yesКосмические аппараты и технологии, 2022
In this time using small unmanned pilot apparitions, weight until 10 kg in search and sabotage target acquires more and more relevance. Besides using resources of radiolocation for searching come less effective.
A. B. Gladyshev   +2 more
doaj   +1 more source

Interference analysis of 5G system in 4 400~4 500 MHz frequency band to radio altimeter

open access: yesDianzi Jishu Yingyong, 2018
Based on the parameters and characteristics of the fifth generation mobile communication(5G)system and the radio altimeter, this paper uses the antenna model and propagation model provided by the International Telecommunication Union(ITU) related ...
Jia Di   +3 more
doaj   +1 more source

Cooperative radio navigation on the Moon

open access: yes, 2023
In recent years, interest in missions to the surface of the Moon has been going through a renaissance not seen since the Apollo era. An important consideration for such missions is how to accurately determine the position of objects on the Moon. In addition, mission components should have an understanding of a reference time in order to correlate ...
openaire   +4 more sources

Multipath Suppression of Radio Navigation Transmitter Signal Based on Linear Sweep Carrier

open access: yesIEEE Access, 2019
Multipath interference is the main error source for radio navigation system high-precision positioning in complex environments. Multipath suppression and elimination are critical for radio navigation systems.
Xia Xue, Honglei Qin, Hui Lu
doaj   +1 more source

Mitigating ML-Driven Adversarial Attacks on xApps Using Dynamic Defense Mechanisms

open access: yesIEEE Open Journal of the Communications Society
The open radio access network architecture (O-RAN) architecture leverages intelligent near-real-time applications, known as xApps, to optimize network performance and services.
Prudhvi Kumar Kakani   +4 more
doaj   +1 more source

SPACE WEATHER: RISK FACTORS FOR GLOBAL NAVIGATION SATELLITE SYSTEMS

open access: yesSolar-Terrestrial Physics, 2021
Extreme space weather events affect the stability and quality of the global navigation satellite systems (GNSS) of the second generation (GPS, GLONASS, Galileo, BeiDou/Compass) and GNSS augmentation.
V.V. Demyanov, Yu.V. Yasyukevich
doaj   +1 more source

Exploring Y1 Communications and Services in O-RAN: Background, Privacy, and Security

open access: yesIEEE Open Journal of the Communications Society
In the latest open radio access network (O-RAN) architecture, the Y1 interface has been introduced to grant authorized parties, known as Y1 consumers, access to and utilization of Y1 data within the near-real-time RAN intelligent controller (Near-RT RIC).
Sachinkumar B. Mallikarjun   +5 more
doaj   +1 more source

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