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An optical signal injector (OSI) system has been developed for use in the hardware-in-the-loop (HWIL) testing of laser radar (LADAR) seekers. The OSI, in conjunction with a scene generator, generates optical signals simulating the return signals of a LADAR seeker and delivers them to a Unit Under Test (UUT). The signals produced by the OSI represent range and intensity (reflectivity) data of a target scene from a given HWTL scenario. The OSI has a modular architecture to allow for easy modification (e.g., operating wavelength, number of optical channels) and is primarily composed of commercial off-theshelf (COTS) components to improve reliability and reduce cost. Presented here is a description of the OSI and its capabilities. INTRODUCTIONLADAR seekers are currently undergoing various phases of development and will require laboratory and field testing and evaluation. Field testing and evaluation of LADAR seekers is expensive and must be conducted judiciously. To minimize development costs, possessing the maximum capability for laboratory testing and evaluation of LADAR seekers is of utmost importance. As a result, there is a need for LADAR scene simulation in the laboratory to be used in the design, development, and testing of LADAR seekers.A LADAR scene simulator will be a key component in laboratory tests and HWIL simulations of LADAR seekers. The scene simulator consists of two parts, the scene projector and the LADAR scene generator. The scene projector converts the output of the scene generator into an radiometrically correct representation of the LADAR scene with the resulting projection stimulating the LADAR seeker under test.The 051 is an example of a LADAR scene projector. The OSI has been developed for use in the Kinetic Kill Vehicle Hardware-in-the-Loop Simulator (KHILS) facility located at the Wright Laboratory Armament Directorate, Eglin Air Force Base (AFB), FL as a key component in the LADAR HWIL configuration of KH1ILS. In the sections to follow, the details of the OSI system will be discussed along with comments on performance, upgradability, and how OSI will initially be employed. 22SPIE Vol. 3084. 0277-786X1971$10.00 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/25/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

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