The Infrared High-Value Target Acquisition (IRHVTA) program demonstrated autonomous acquisition and tracking of large fixed high-value targets with an airborne imaging-infrared seeker. This paper describes the use of the terminal-tracking subsystem during the autonomous-acquistion phase of each mission to improve the acquisition performance. After defining the IRHVTA program, the paper completes its introduction by describing the system, tracking, and acquisition algorithms and their architecture to give the required background for understanding how the system functioned. The paper describes how the IRHVTA tracker subsystem autonomously selected and tracked points throughout the infrared (IR) sensor's field of view to maintain geometry stabilization relative to the ground. It explains how the acquisition subsystem used this stablization to interrelate sequential snapshots. This allowed later snapshots to use the acqusition information from earlier ones to reduce the weapon to target uncertainty. The reduced uncertainty permitted the searching of smaller areas of the imagery for the later acquisition. The paper also describes the use of the ground-stabilized geometry to transition from acquisition of large landmark objects early in the mission to smaller targets later in the mission with minimized probability of false alarm. The paper concludes with an explanation of the benefits of this design on probability of detection and on operation in the presence of camouflage and decoys. The extension of this design to the attack of invisible aim points is also explained.


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    Title :

    Acquisition and tracking interaction in the infrared high-value target acquisition program


    Additional title:

    Datengewinnung und Zielverfolgung im Infrarot-Großzielerkennungsverfahren IRHVTA


    Contributors:


    Publication date :

    1990


    Size :

    4 Seiten, 3 Bilder


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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