Results 1 to 10 of about 184,416 (269)

Navigable networks as Nash equilibria of navigation games [PDF]

open access: yesNature Communications, 2015
40 pages, 17 ...
András Gulyás   +4 more
openaire   +4 more sources

Torchlight Navigation

open access: yes2010 20th International Conference on Pattern Recognition, 2010
A common computer vision task is navigation and mapping. Many indoor navigation tasks require depth knowledge of flat, unstructured surfaces (walls, floor, ceiling). With passive illumination only, this is an ill-posed problem. Inspired by small children using a torchlight, we use a spotlight for active illumination.
Michael Felsberg   +4 more
openaire   +4 more sources

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

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

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

SMASH navigators [PDF]

open access: yesMagnetic Resonance in Medicine, 2003
AbstractThe additional data acquired when using multiple receiver coils is commonly used to improve SNR or reduce acquisition times. It may also be used to remove image artifacts by selectively replacing corrupt data. In the present study, a correction scheme is presented based on simultaneous acquisition of spatial harmonics (SMASH) that enables ...
Bydder, M   +4 more
openaire   +3 more sources

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

Discussion on the frequency and bandwidth of continuous variable entangled microwave signal

open access: yesResults in Physics, 2019
We discuss the relationship between the photon frequency used to produce a continuous variable entangled microwave signal and the signal frequency used for its measurement.
Xiang Li   +3 more
doaj   +1 more source

Robust design of a machine learning-based GNSS NLOS detector with multi-frequency features

open access: yesFrontiers in Robotics and AI, 2023
The robust detection of GNSS non-line-of-sight (NLOS) signals is of vital importance for land- and close-to-land-based safe navigation applications. The usage of GNSS measurements affected by NLOS can lead to large unbounded positioning errors and loss ...
Omar García Crespillo   +3 more
doaj   +1 more source

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