An Integrated, High Accuracy Antenna Pointing/Stabilization and GPMnertial Navigation System (PSGINS)

Marvin Silver and David A. Haessig

Abstract:	This paper describes the design, pe&mance, and flight testing of a high accuracy, GP%utial-based Antenna Pointing and Stabilization System, herein referred to as the PSGINS System. This system was used in establishing a satellite communications (SATCOM) secure link to an Unmanned Air Vehicle (UAV). Video imagery captured by the vehicle’s on-board sensor and the UAVs present location wexeamongthedatatransmittedbackthruthesatellitelhkto a ground station The UAV and its sensor payload were also controlled through the SATCOM forward link This demonstrated for the first time the feasibility of real-time, beyond line-of-sight reconnaissance by unmannedm. Thisdemons&ationwasauxmplishedinaveryshortperiod of eight months using nondevelopmental, existing hardware. This was possible because of the availability of three ccmponents made by GEC-Marconi Systems Cl the Taetlcal Inertial GPS Guidance System (TKGS), a small, lightweight GPS/lNS which provided a precise measure of vehicle at&de and location a Reclaion Antenna Podtioner System, a highly accurate, two-axis -0 congtrol system whichme&&xhypointedtheantenna,andtheJTlDS-based COMLINK Syrtem, a modem providing an encryption/ deuyption and video compression/decompression capability. Thetirsttwoofthesethree,TIGGSandthePrecisionAntenna Positioner, cqnise the PSGINS System. Its perf&mance in thisdenKmadonwastideredtobehighIy-. During the flight teste, PSGINS maintained lock on the satellite during normal maneuvers and while the UAV bounced in turbulent winds. while this owned, the ability to~mobileenemymissilesaswe~asgroundvehicleswas demonstrated.
Published in:	Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994) June 6 - 8, 1994 Antlers Doubletree Hotel Colorado Springs, CO
Pages:	361 - 370
Cite this article:	Silver, Marvin, Haessig, David A., "An Integrated, High Accuracy Antenna Pointing/Stabilization and GPMnertial Navigation System (PSGINS)," Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994), Colorado Springs, CO, June 1994, pp. 361-370.
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