Diversity Techniques for Omnidirectional Telemetry Coverage of The HiMAT Research Vehicle

Harney, Paul F. (1981) Diversity Techniques for Omnidirectional Telemetry Coverage of The HiMAT Research Vehicle. Technical Report NASA TP-1830, Research Engineering, NASA Dryden Flight Research Center.

Full text available as: PDF - Requires Adobe Acrobat Reader or other PDF viewer.

Abstract

The highly maneuverable aircraft technology (HiMAT) remotely piloted research vehicle (RPRV) is being flight tested to demonstrate a number of technological advances applicable to future fighter aircraft. Because the aircraft control system uses airborne and ground-based computers that communicate via uplink and downlink telemetry, it is imperative for this communication to be uninterrupted. Since antenna radiation patterns are normally much less than ideal for continuous reception or transmission for all aircraft attitudes, this anticipated problem was investigated. After flight qualification and testing on other aircraft, a frequency diversity concept and an antenna diversity concept were implemented on the HiMAT vehicle to obtain omnidirectional telemetry coverage.

EPrint Type:	NASA Technical Publication
Keywords:	Remotely piloted research vehicle, Command control systems
Subjects:	Aircraft/Project: RPRV Aircraft/Project: HiMAT (01 - 09) Aeronautics: (06) Avionics And Aircraft Instrumentation
ID Code:	655
Deposited On:	07 Febuary 2006
Additional Information:	35 pages.