Limitations of synthetic aperture laser optical feedback imaging
Optics
2015-06-05 v3
Abstract
In this paper we study the origin and the effect of amplitude and phase noise on Laser Optical Feedback Imaging (LOFI) associated with Synthetic Aperture (SA) imaging system. Amplitude noise corresponds to photon noise and acts as an additive noise, it can be reduced by increasing the global measurement time. Phase noise can be divided in three families: random, sinusoidal and drift phase noise; we show that it acts as a multiplicative noise. We explain how we can reduce phase noise by making oversampling or multiple measurements depending on its type. This work can easily be extended to all SA systems (Radar, Laser or Terahertz), especially when raw holograms are acquired point by point.
Keywords
Cite
@article{arxiv.1206.4265,
title = {Limitations of synthetic aperture laser optical feedback imaging},
author = {Wilfried Glastre and Olivier Jacquin and Olivier Hugon and Hugues Guillet De Chatellus and Eric Lacot},
journal= {arXiv preprint arXiv:1206.4265},
year = {2015}
}