Next-Generation Focal Plane Array Semi-Active Laser Seeker Algorithms

OUSD (R&E) MODERNIZATION PRIORITY: Microelectronics; General Warfighting Requirements (GWR) TECHNOLOGY AREA(S): Sensors; Electronics The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), 22 CFR Parts 120-130, which controls the export and import of defense-related material and services, including export of sensitive technical data, or the Export Administration Regulation (EAR), 15 CFR Parts 730-774, which controls dual use items. Offerors must disclose any proposed use of foreign nationals (FNs), their country(ies) of origin, the type of visa or work permit possessed, and the statement of work (SOW) tasks intended for accomplishment by the FN(s) in accordance with the Announcement. Offerors are advised foreign nationals proposed to perform on this topic may be restricted due to the technical data under US Export Control Laws. Please direct questions to the Air Force SBIR/STTR HelpDesk: usaf.team@afsbirsttr.us. OBJECTIVE: Develop a suite of algorithms suited for next-generation focal plane array seekers which will be single devices capable of both semi-active laser sensing and passive imaging, demonstrating performance which meets or exceeds current fielded systems of each (and/or both) mode(s). DESCRIPTION: A number of investigatory projects have shown feasibility of semi-active laser seekers in focal plane array format, leading to new development for single focal plane array, dual mode, and Semi-Active Lasers/Passive seekers. These seekers will require new algorithms capable of legacy SAL seeker performance in a new focal plane array format. Algorithms such as last significant pulse logic (LSPL) and spot jump inhibit (SJI) may need to be reinvented and tested. Data fusion of the semi-active laser + passive signals may provide new concept of operations, but also require new algorithms. With the contribution of hardware developers and/or COTS devices, creative concepts are sought which may meet current performance or leverage new hardware capabilities to greater performance. Proposals should describe a basic strategy for acquiring hardware, which may include Commercial Off the Shelf (COTS) components or participation with a prime contractor or other company. The priority is having a platform to demonstrate the relevant advances, it is not necessary that it be in a final configuration. For example, discrete boresighted Semi-Active Lasers/imager devices could be used in place of an imagined future dual-mode singular device. Proposals should include one of more of the following areas: 1) Mimicry of traditional semi-active laser algorithms onto new FPA-format hardware. 2) Advanced algorithms which may provide more performance when used with next-generation FPA SAL seekers. 3) Data fusion between SAL guidance signal and automatic target recognition. Of secondary interest is other novel concepts which may enable multi-use from a single device, such as autonomous navigation. Proposals including significant hardware development are not desired for this topic. PHASE I: Complete analysis and design of software approach in conjunction with hardware downselection. Conceptual designs should include performance modeling and comparison with existing systems. PHASE II: Produce a system design and prototype of Phase I concepts. Prototypes will be tested in both laboratory and field environments. PHASE III DUAL USE APPLICATIONS: Successful demonstration will result in transition through hardware development partners to include approaches in new seeker designs which are being developed. Multi-use approaches which involve data fusion for active laser sensing combined with passive scene detection will be applicable to other industries such as vehicle advanced driver assistance systems (ADAS). REFERENCES: J. Barth, A. Fendt, R. Florian, et al., "Dual-mode seeker with imaging sensor and semi-active laser detector," Proceedings of the SPIE Volume 6542 (2007); J. English, R. White, "Semi-active laser (SAL) last pulse logic infrared imaging seeker," Proceedings of the SPIE Volume 4372 (2001); Patent US 8,164,037, Co-boresighted dual-mode SAL/IR seeker including a SAL spreader, Raytheon Company, David D. Jenkins, Byron B. Taylor, David J. Markason, Apr. 24, 2012. KEYWORDS: semi-active laser guidance; human-in-the-loop; autonomous guidance and control; laser designated; dual-mode seeker; automatic target recognition