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There was some development work on a Dual-Mode Seeker by Roketsan, which utilised LWIR and MWIR detectors - doing so allowed the seeker to be immune to countermeasures along with stored image database of various targets.
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To me, the dual-mode seeker looks very much like MRAshM in development by Roketsan.
Abstract
In missile applications, there are many parameters to be optimized. One of these is diameter of seeker and the other one is counter-countermeasures. To decrease diameter of the seeker, there are some methods. One of them is light transfer to stable detector. In this technique, detector and objective stay stable out of gimbal mechanism and light is focused in front of the objective. Later virtual image is created at the detector. By this way, diameter of the objective and detector don’t affect diameter of the seeker and give more free space to put another detector for dual wavelength into system to be immune to countermeasures. In this study, dual mode system’s optical and mechanical designs have been made for mid-wave infra-red imaging and long-wave infra-red imaging. Optical designs performances have been illustrated in simulation results. Finally, conceptual design of dual mode seeker will be summarized.
https://www.spiedigitallibrary.org/...r-long-wave-infrared/10.1117/12.2320982.short
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To me, the dual-mode seeker looks very much like MRAshM in development by Roketsan.
Abstract
In missile applications, there are many parameters to be optimized. One of these is diameter of seeker and the other one is counter-countermeasures. To decrease diameter of the seeker, there are some methods. One of them is light transfer to stable detector. In this technique, detector and objective stay stable out of gimbal mechanism and light is focused in front of the objective. Later virtual image is created at the detector. By this way, diameter of the objective and detector don’t affect diameter of the seeker and give more free space to put another detector for dual wavelength into system to be immune to countermeasures. In this study, dual mode system’s optical and mechanical designs have been made for mid-wave infra-red imaging and long-wave infra-red imaging. Optical designs performances have been illustrated in simulation results. Finally, conceptual design of dual mode seeker will be summarized.
https://www.spiedigitallibrary.org/...r-long-wave-infrared/10.1117/12.2320982.short
