An EHF and laser intersatellite communication link comparison and selection methodology

Abstract

Present and future communication requirements establish the need for a high data rate satellite to satellite trunking system. The advent of the CW laser systems and transmitting sources at 60 GHz offer a "new" and wide electromagnetic spectrum for use in space telecommunications. The fundamental objective of this study is to provide the systems designer and the communication system user with reference data, supplemental data, and a trade-off methodology for selecting the system (EHF or laser) which best suits their requirements. Special treatment is given to the determination of signal-to-noise ratios in the evaluation of optical and millimeter wave heterodyne systems.