12 GHz SITE-DIVERSITY FADE DURATION STATATISTICS FOR PLANNING OF DTH/VSAT AND SOHO SATELLITE SERVICES IN THE TROPICS

摘要

In satellite transmissions at frequencies above 10 GHz, deep signal fading, and hence severe outage, is mainly attributed to rain. Site-diversity is an effective form of fade countermeasure. Statistics of seasonal fade variations, together with fade durations and fade intervals characteristics, are needed to give the detailed insight for system design of DTH/VSAT and SOHO systems. This paper presents a year's worth of site-diversity data measured from an equatorial mountainous coastal location and concentrates on the duration and interval aspects. Two earlier papers deal with joint statistics, average durations, and seasonal & diurnal issues.