The global air surveillance coverage available with constellations of space-based radar satellites was simulated. The number, altitude, the orbital phasing, and orbital inclination of the satellites were varied. Targets were placed at various latitudes to provide data on coverage as a function of latitude. Data is presented in terms of the length of time a target was visible to at least one satellite vs the length of time it could not be observed. Constellations of satellites having low altitudes of around 1000 km require high inclinations for effective coverage at high latitudes. A constellation of seven satellites at 1000 km altitude and 80 deg inclination gave nearly continuous coverage at the pole. At an altitude of 5000 km or more, continuous coverage of latitudes above 80 deg was achieved with a constellation of 4 satellites.
Coverage Studies for Spaced-Based Radar
1990
31 pages
Report
Keine Angabe
Englisch
Radiofrequency Detection , Space Technology , Global tracking network , Radar networks , Satellite networks , Satellite-borne radar , Surveillance radar , Tracking radar , Arctic regions , Latitude , Altitude , Computerized simulation , Gaps , Satellite orbits , Targets , Visibility , Foreign technology
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