Abstract
The interaction of an electromagnetic Gaussian Schell-model beam with a semi-rough target located in atmospheric turbulence was studied by means of a tensor method, and the corresponding inverse problem was analyzed. The equivalent model was set up on the basis of a bistatic laser radar system and a rough target located in a turbulent atmosphere. Through mathematical deduction, we obtained detailed information about the parameters of the semi-rough target by measuring the beam radius, coherence radius of the incident beam and the polarization properties of the returned beam.
Highlights
IntroductionThe issue of laser beam propagation in atmospheric turbulence has been explored widely over the past decades
The issue of laser beam propagation in atmospheric turbulence has been explored widely over the past decades. It is well-known that atmospheric turbulence induces random variations in the phase, propagating direction and intensity of beams, which are characterized by beam spreading, beam wander and scintillation [1,2,3]
In contrast to fully coherent beams, partially coherent beams are better at resisting the negative effects induced by atmospheric turbulence, and this has been verified in several experiments [4,5]
Summary
The issue of laser beam propagation in atmospheric turbulence has been explored widely over the past decades. It is necessary to study the combined action have found that the properties of laser beams are affected by the transmission medium, besides target of the atmospheric turbulence and scattering on laser beams with the object in scattering [50,51,52,53,54]. In thisEGSM paper, beams through inversion analysis of the atmospheric we found it is possible to quantitatively obtain accurate parameters of interaction of turbulence, isotropic EGSM beamsthat with a semi-rough target in atmospheric turbulence, we found the object surface by contrasting the characteristics of the incident beam and its returned beam. The EGSM beam travels from the interaction of the laser beam with the object surface, the beam propagates from the target plane to source plane to the target plane in atmospheric turbulence. Calculated the degree of polarization of the returned beam and the detailed parameters of the object were derived
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