衛星間光通信用光ビーム制御方式の検討

概要

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A new optical beam pointing and tracking technique for optical intersatellite communication links using single sensor beacon light detection is proposed. This technique aims to compensate errors in tracking signal caused by such as sensor gain drifts or optical system transmitivity changes during satellite lifetime. Pointing detection technique with relatively low angular resolution but with wide range using M-sequence coded patterns generated by liquid cristal display device is described. Tracking detection technique with high precision based on the spatial modulation of the received beacon light vibrated on a slit by acoustooptic deflector is also discussed. The signal ratio with respect to two signals derived from the modulated tracking signal indicates that the above errors may be eliminated from the original tracking signal. Basic experimetal results of tracking detection having a less than I μrad resolutin are presented.
東海大学の論文
1992-03-30