Acta Optica Sinica, Volume. 26, Issue 9, 1329(2006)
Mathematical and Physical Basis for Pointing, Acquisition and Tracking Testing of InterSatellite Laser Communication Terminals
The propagation of laser beam for intersatellite laser communications belongs to the farfield diffraction, but the optical testing and verification in the laboratory is on the condition of the nearfield diffraction. In terms of the Fresnel diffraction theory, the inherent difference on the optical tracking position errors between the farfield and nearfield effects is studied, their equivalent conditions are analyzed. And it is found that the use of beam scanning in the nearfield testing can accurataly simulate the mutual movement of satellites in the farfield and the trajectory formula for beam scanning is deduced. Investigation on the characteristics of focused spot and the effect from satellite vibration is presented. The results clarify the basic concepts necessary for the testing of optical tracking performance of intersatellite laser communication terminals, which would provide helps in the ground testing.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Mathematical and Physical Basis for Pointing, Acquisition and Tracking Testing of InterSatellite Laser Communication Terminals[J]. Acta Optica Sinica, 2006, 26(9): 1329