Simulation of polarized signal of laser navigation system by Monte Carlo method
E.G. Kablukova1, V.G. Oshlakov2, S.M. Prigarin1,3
1Institute of Computational Mathematics and Mathematical Geophysics of the Siberian Branch of the RAS, Novosibirsk, Russia
2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
3National Research Novosibirsk State University, Novosibirsk, Russia
Keywords: polarized radiation, polarization degree, Stokes parameters, multiple light scattering, Monte Carlo method, laser instrumental navigation system
Abstract
Algorithms for stochastic simulation of a polarized signal arriving at a photodetector matrix of an aircraft navigation system are developed. The Monte Carlo method is used to estimate angular distributions of Stokes parameters of radiation recorded by the receiver, and the effect of scattering of different order on the total recorded signal and its polarization degree is analyzed. Calculations of the signal intensity using linear polarization filters are performed. The constructed algorithms allow one to estimate the efficiency of the laser navigation system taking into account the polarization of radiation for various meteorological conditions and the possibility of increasing the signal contrast by using polarization filters.
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