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Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back
About influence of turbulence of atmosphere on extended lines on accuracy of the dispersive subpicosecond range finder |
V.I. GRIGOREVSKII, M.V. GRIGOREVSKAJA, M.T. PRILEPIN, V.P. SADOVNIKOV, M.V. SOROCHINSKII, V.V. HABAROV, V.J. ANDREEV.
The way of measurement of distances by means of a dispersive range finder on the basis of one laser with length of a wave ~ 0,4 mkm and a photodetector is offered at duration of a laser impulse ~ 0,1 ps. For the given variant of a range finder calculations of an error of measurement of the distances arising for the fluctuations of optical length on extended atmospheric lines are carried out. Results of numerical modelling show that at maximum levels of turbulence of atmosphere and small corners of supervision of the satellite, at a beam way in atmosphere of ~ 100 km arising errors of measurement of distances are of ~ 0.1 m and they are necessary for considering in high-precision trajectory measurements. Key words: turbulence, atmosphere, dispersion, laser, a range finder, femtosecond impulse.
Е-mail: vig248@ire216.msk.su |
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