Results 31 to 40 of about 57,945 (255)

Integrated Communications and Navigation Terminal

open access: yesJournal of Navigation, 1991
The mobile radio communications industry has recently witnessed a new demand for terminal equipment which can provide both communications and position reporting capabilities on a global scale–for example, the automatic monitoring of secure cargoes during international transportation.
Beach, MA, Mattos, PG, Edwards, DJ
openaire   +2 more sources

Progress and Achievements of Multi-sensor Fusion Navigation in China during 2019—2023 [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2023
Global Navigation Satellite System (GNSS) can provide all-weather, all-time, high-precision positioning, navigation and timing services, which plays an important role in national security, national economy, public life and other aspects.
Xingxing LI, Xiaohong ZHANG, Xiaoji NIU, Jian WANG, Ling PEI, Fangwen YU, Hongjuan ZHANG, Cheng YANG, Zhouzheng GAO, Quan ZHANG, Feng ZHU, Weisong WEN, Tuan LI, Jianchi LIAO, Xin LI
doaj   +1 more source

Research on the navigation method of high speed differential rotation guided ammunition with ballistic assistance prediction under GNSS denial

open access: yesDefence Technology
In complex environments such as high dynamics and weak signals, a satellite signal compensation method based on prefabricated trajectory assistance and an improved adaptive Kalman filter is proposed for a 155 mm differential rotating rear-body control ...
Ning Liu   +7 more
doaj   +1 more source

Photonic Pre-Coding for MIMO System in Satellite-Terrestrial Communication

open access: yesIEEE Access, 2020
In this paper, a photonic based pre-coding for multiple input multiple output (MIMO) satellite communication is realized without digital signal processing (DSP) structure.
Tao Lin   +8 more
doaj   +1 more source

Modeling and Measurement of Thermal–Mechanical-Stress-Creep Effect for RF MEMS Switch Up to 200 °C

open access: yesMicromachines, 2022
High-temperature processes, such as packaging and annealing, are challenges for Radio-Frequency Micro-Electro-Mechanical-Systems (RF MEMS) structures, which could lead to device failure.
Yulong Zhang   +3 more
doaj   +1 more source

Effectiveness and Ergonomics of Integrated Navigation System

open access: yesTransactions on Maritime Science, 2012
Ergonomics increases the efficiency of people and device interaction. Nowadays, modern navigation bridges are designed in accordance with the requirements of navigators, designers and shipowners, production costs etc. The bridge design, various layouts, instrument arrangements and their capacities etc.
Vidan, Pero   +2 more
openaire   +5 more sources

A New Method of Ambiguity Resolution for Triple-Frequency GPS PPP

open access: yesITM Web of Conferences, 2016
At present, reliable ambiguity resolution in GPS precise point positioning (PPP) can be achieved through the traditional model called “EWL-WL-NL”. In this paper, we proposed a new model of ambiguity resolution,“WL-WL-WL”, where making use of linear ...
Lu Xiao-Feng   +2 more
doaj   +1 more source

Integration of sleep homeostasis and navigation in Drosophila [PDF]

open access: yesPLOS Computational Biology, 2020
ABSTRACT During sleep, the brain undergoes dynamic and structural changes. In Drosophila , such changes have been observed in the central complex, a brain area important for sleep control and navigation.
Andres Flores-Valle   +2 more
openaire   +6 more sources

Multi-Thread Based Design of Navigation Algorithm Module in Multi Radio Integrated Navigation System M&S Software [PDF]

open access: yesE3S Web of Conferences, 2019
A multi-thread based navigation algorithm module is designed in a multi radio integrated navigation system modeling and simulation software in order to efficiently use resources in the software platform of the modeling and simulation software.
Son Jae Hoon   +4 more
doaj   +1 more source

A SINS/CNS Integrated Navigation System Based on High Precision Mathematical Horizon Reference [PDF]

open access: yesHangkong bingqi
SINS/CNS integrated navigation system has the advantages of high autonomy and strong anti-interference ability. It has important application value in the navigation tasks of ballistic missiles and reentry vehicles.
Yuan Ding, Wang Xinlong
doaj   +1 more source

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