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SKRYJA, P. BARCÍK, P.
Original Title
Optimal Scanning Pattern for Initial Free-Space Optical-Link Alignment
Type
journal article in Web of Science
Language
English
Original Abstract
Since free-space optical links (especially fully photonic ones) are very challenging to accurately align; scanning algorithms are used for the initial search and alignment of the transceivers. The initial alignment aims to intercept the optical beam so that it hits a position-sensitive detector. However, this operation can be very time-consuming (depending on the system parameters, such as transceiver parameters, distance between transceivers, divergence of the transmitter, angle of view of the receiver, etc.). A spiral scan is used as the most widespread pattern for scanning. This article examines the effects of system parameters (e.g., global navigation satellite systems and compass accuracy) on the angular area of uncertainty that must be scanned to find the optical beam. Furthermore, several types of spiral pattern are compared depending on the time of the scan execution and the required number of points for scanning the given uncertainty area. The cut hexagonal spiral scan achieved the best results as it required 18.1% less time than the common spiral scan for the presented transceiver.
Keywords
FSO; spiral scan; spiral patterns; alignment; angular area of uncertainty
Authors
SKRYJA, P.; BARCÍK, P.
Released
5. 6. 2024
Publisher
MDPI
Location
BASEL
ISBN
2304-6732
Periodical
Photonics
Year of study
11
Number
6
State
Swiss Confederation
Pages to
17
Pages count
URL
https://www.mdpi.com/2304-6732/11/6/540?utm_campaign=releaseissue_photonicsutm_medium=emailutm_source=releaseissueutm_term=doilink14
BibTex
@article{BUT188982, author="Petr {Skryja} and Peter {Barcík}", title="Optimal Scanning Pattern for Initial Free-Space Optical-Link Alignment", journal="Photonics", year="2024", volume="11", number="6", pages="17", doi="10.3390/photonics11060540", issn="2304-6732", url="https://www.mdpi.com/2304-6732/11/6/540?utm_campaign=releaseissue_photonicsutm_medium=emailutm_source=releaseissueutm_term=doilink14" }