An EHF Telecommunication System Engineering Model,
NATIONAL BUREAU OF STANDARDS BOULDER CO
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An EHF Telecommunication System Engineering Model ETSEM has been developed as an aid in the design of line-of-sight LOS communication systems from 10 to 100 GHz. ETSEM provides tabulation of path geometry parameters and analyzes ray-path and Fresnel zone clearances of help the engineer design the path. ETSEM also predicts the performance availability of both digital and analog systems based on state-of-the-art EHF propagation models and equipment specifications. Attenuation by rain, clear-air absorption, and multipath are modeled. These are expected to essentially determine the statistics of link availability as limited by propagation impairments. Performance may be predicted for any interval of months of the year. A climatological data base for North America and Europe provides parameters for the propagation models. ETSEM has been implemented on a desk-top computer. Weaknesses and limitations of the model are discussed.
- Command, Control and Communications Systems