Results 41 to 50 of about 1,529,260 (347)

Performance analysis of the BDSBAS-B1C message in trial operation stage

open access: yesScientific Reports, 2023
BeiDou Satellite-based Augmentation System (BDSBAS) has come into the trial operation stage since July, 2020. To evaluate the characteristic of the augmentation message in BDSBAS-B1C signal, the effectiveness of the message content was firstly analyzed ...
Jie Xin   +8 more
doaj   +1 more source

Deep reinforcement learning based mobile robot navigation: A review

open access: yes, 2021
: Navigation is a fundamental problem of mobile robots, for which Deep Reinforcement Learning (DRL) has received significant attention because of its strong representation and experience learning abilities.
Kai Zhu, Tao Zhang
semanticscholar   +1 more source

Honeybee navigation [PDF]

open access: yesCurrent Biology, 2003
Why the interest in honeybees? Many of us have marvelled at the ability of honeybees to find an attractive flower patch, miles away from their hive, and to return to it repeatedly with unerring accuracy. How do they do this with a brain smaller than a sesame seed? We don't know all the answers yet, but bees seem to be able to estimate the distance to a
openaire   +3 more sources

A method for evaluating microwaves entanglement efficiency based on second-order correlation detection

open access: yesResults in Physics, 2019
A method for evaluating the entanglement efficiency of dual-path entangled microwaves based on second-order correlation detection is proposed in this paper.
Tianli Wei   +5 more
doaj   +1 more source

A radio navigation angle measurement method with entangled microwave signals

open access: yesAIP Advances, 2018
There are the common problems of limited precision, low anti-interference ability and poor signal detection performance in the classical radio navigation angle measurement systems.
X. Li   +5 more
doaj   +1 more source

Navigation of brain networks [PDF]

open access: yes, 2018
Understanding the mechanisms of neural communication in large-scale brain networks remains a major goal in neuroscience. We investigated whether navigation is a parsimonious routing model for connectomics. Navigating a network involves progressing to the
Heuvel, Martijn P. van den   +2 more
core   +4 more sources

Geomagnetic/inertial navigation integrated matching navigation method

open access: yesHeliyon, 2022
The accuracy of an a priori geomagnetic reference map is a significant constraint on the geomagnetic matching navigation method. Especially when the aircraft enters an unknown environment, it is impossible to accomplish the navigation task using traditional geomagnetic navigation methods.
Qiong Wang   +3 more
openaire   +3 more sources

A Navigation Ranging Scheme With True Random Entangled Microwave Signals

open access: yesIEEE Photonics Journal, 2018
Focusing on the problem of vulnerable anti-deception and weak anti-jamming ability in classical pseudorandom code correlation ranging, we present a navigation ranging scheme with true random entangled microwave signals.
Xiang Li   +4 more
doaj   +1 more source

A Deep Learning Anomaly Detection Framework for Satellite Telemetry with Fake Anomalies

open access: yesInternational Journal of Aerospace Engineering, 2022
Reducing satellite failures and keeping satellites healthy in orbit are important issues. Current satellite systems have developed modules to detect anomalies on board.
Yakun Wang   +3 more
doaj   +1 more source

Ordered Navigation on Multi-attributed Data Words [PDF]

open access: yes, 2014
We study temporal logics and automata on multi-attributed data words. Recently, BD-LTL was introduced as a temporal logic on data words extending LTL by navigation along positions of single data values. As allowing for navigation wrt.
Decker, Normann   +3 more
core   +1 more source

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