TY - JOUR
T1 - Optical beam position estimation in free-space optical communication
AU - Bashir, Muhammad Salman
AU - Bell, Mark R.
N1 - Publisher Copyright:
© 1965-2011 IEEE.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - The position of the optical beam on an optical detector array is an important parameter for optimal decoding in free-space optical communication systems; thus, its accurate estimation is essential. In this paper, the performance of three estimators (maximum likelihood, center of gravity, and template matching) for the estimation of center of the beam on a detector array is compared in terms of mean square error and complexity. Simulation results show that the maximum likelihood estimate achieves the lowest mean square error and especially performs significantly better than center of gravity under poor signal-to-noise ratio conditions, for both the continuous and discrete/quantized arrays.
AB - The position of the optical beam on an optical detector array is an important parameter for optimal decoding in free-space optical communication systems; thus, its accurate estimation is essential. In this paper, the performance of three estimators (maximum likelihood, center of gravity, and template matching) for the estimation of center of the beam on a detector array is compared in terms of mean square error and complexity. Simulation results show that the maximum likelihood estimate achieves the lowest mean square error and especially performs significantly better than center of gravity under poor signal-to-noise ratio conditions, for both the continuous and discrete/quantized arrays.
KW - Optical communication
KW - optical detector array
KW - optical beam
UR - http://www.scopus.com/inward/record.url?scp=85013471817&partnerID=8YFLogxK
U2 - 10.1109/TAES.2016.150567
DO - 10.1109/TAES.2016.150567
M3 - Article
AN - SCOPUS:85013471817
VL - 52
SP - 2896
EP - 2905
JO - IEEE Transactions on Aerospace and Electronic Systems
JF - IEEE Transactions on Aerospace and Electronic Systems
SN - 0018-9251
IS - 6
M1 - 7855592
ER -