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A MOBILE RANGE SYSTEM TO TRACK TELEMETRY FROM A HIGH-SPEED INSTRUMENTATION PACKAGELeung, Joseph, Aoyagi, Michio, Billings, Donald, Hoy, Herbert, Lin, Mei, Shigemoto, Fred 10 1900 (has links)
International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / As renewal interest in building vehicles based on hypersonic technologies begin to
emerge again, test ranges anticipating in supporting flight research of these vehicles will
face a set of engineering problems. Most fundamentals of these will be to track and
gather error free telemetry from the vehicles in flight. The first series of vehicles will
likely be reduced-scale models that restrict the locations and geometric shapes of the
telemetry antennas. High kinetic heating will further limit antenna design and
construction. Consequently, antennas radiation patterns will be sub-optimal, showing
lower gains and detrimental nulls. A mobile system designed to address the technical
issues above will be described. The use of antenna arrays, spatial diversity and a hybrid
tracking system using optical and electronic techniques to obtain error free telemetry in
the present of multipath will be presented. System tests results will also be presented.
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