Comparative investigations of correlation of atmosphere turbulence for laser communication experiments with ARTEMIS satellite

Kuz'kov, V, Andruk, V, Sodnik, Z, Sizonenko, Y, Kuz'kov, S
Kinemat. fiz. nebesnyh tel (Online) 2008, 24(1):77-85
Language: Russian
Abstract: 

Comparative investigation of correlation of atmosphere turbulence on small angles which are equal to the laser communication experiments with the ARTEMIS satellite was performed. The lot of images of the double Castor star components was calculated according to results of the observations carried out at ESA's Optical Ground Station (OGS, Canary Islands) and at the AZT-2 telescope of the Main Astronomical Observatory (Kyiv, Ukraine). Short expositions of CCD cameras in thin filters on a wavelength of 850 nm were used. Calculations of middle photometric positions and fluctuations on x, y coordinates of images of A and B components of the double star were performed. Besides, we estimated the correlation coefficient of A and B positions separated by 4.8 arc second (Kx = 0.96 and Ky = 0.95). Photometric and coordinate results and FWHM (Full Width Half Maximum) function were obtained using the MIDAS/ROMAFOT software package. It is shown that atmosphere turbulence data from direction on visible position of the satellite can be used for the compensation of atmosphere turbulence.

Keywords: ARTEMIS satellite, atmosphere turbulence