Open AccessPhotonic implementation of a neuronal algorithm applicable towards angle of arrival detection and localization
Author(s) -
Ryan Toole,
Mable P. Fok
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.016133
Subject(s) - photonics , angle of arrival , computer science , modulation (music) , optics , signal processing , nonlinear system , polarization (electrochemistry) , algorithm , signal (programming language) , physics , acoustics , telecommunications , radar , chemistry , quantum mechanics , antenna (radio) , programming language
A photonic system exemplifying the neurobiological learning algorithm, spike timing dependent plasticity (STDP), is experimentally demonstrated using the cooperative effects of cross gain modulation and nonlinear polarization rotation within an SOA. Furthermore, an STDP-based photonic approach towards the measurement of the angle of arrival (AOA) of a microwave signal is developed, and a three-dimensional AOA localization scheme is explored. Measurement accuracies on the order of tens of centimeters, rivaling that of complex positioning systems that utilize a large distribution of measuring units, are achieved for larger distances and with a simpler setup using just three STDP-based AOA units.