Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bi-static LIDAR systems operating in the presence of oceanic turbulence   Optical turbulence occurring in the oceanic waters may be detrimental for
light beams used in the short-link communication and sensing systems, and, in
particular, in underwater LIDARs. We develop a theory capable of predicting the
passage of light beams through the bi-static LIDAR systems, for a wide variety
of optical waves, including partially coherent and partially polarized, and for
a wide family of targets. Our theoretical framework is based on the
Huygens-Fresnel integral adopted to random media and optical systems described
by the $4\times4$ ABCD matrices. The treatment of oceanic turbulence relies on
the recently introduced power spectrum model of the fluctuating
refractive-index [Opt. Express 27, 27807 (2019)] capable of accounting for
different average temperatures of water. We first analyze the evolution of the
second-order beam statistics such as the spectral density and the degree of
coherence of the beam on its single pass propagation and then incorporate this
knowledge into the analysis of the bi-static LIDAR returns.

31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math