Open AccessSimulation for Space target interference imaging system distorted by atmospheric turbulence
Author(s) -
Yangyang Liu,
Wenxi Zhang
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.124201
Subject(s) - wavefront , turbulence , interference (communication) , physics , optics , adaptive optics , atmospheric turbulence , phase (matter) , spectral density , closure (psychology) , fourier transform , phase space , computational physics , computer science , meteorology , telecommunications , channel (broadcasting) , quantum mechanics , economics , market economy , thermodynamics
Interference imaging system for space target has close relation with atmospheric environment, and atmospheric turbulence disturbance distorts terribly the wavefront phase of any transported optics launched from any optics system. In the space target interference imaging system the phase-closure-principle is adopted, in order to eliminate possible effects of atmospheric turbulence on the target image. Based on the power spectrum method and the Fourier transform method, the numerical simulation of wavefront phase screen, which is distorted by atmospheric turbulence conforming to the statistical rules of kolmogonov model and modified Von Karmen model, is respectively implemented. Various images by several different phase-screen models on the interference imaging system are obtained. Simulation results show that, with the advantage of adopting phase-closure-principle, the possible effects of atmospheric turbulence imaging can be eliminated basically.