The introduction of millimeter wave (MMw) active-passive, air-to-surface missile seeker systems to counter the European armor threat has increased the need for simulators to evaluate the performance of this class of seeker. Existing simulation techniques have not proved to be cost effective, and are generally unable to obtain sufficient target spatial position control at millimeter wave frequencies to ensure high fidelity simulations. The conventional approach to simulating a target for seeker testing is to build a transponder which receives the transmitted signal from the seeker, delays it to represent range, modulates it to simulate the intended target signature, and retransmits it through an antenna array which positions the target spatially. Target modeling and position control are implemented using simulation components at the radar frequency. A new concept for target simulation for FM/CW modulated radar sensors, uses the signal from the seeker transmitter to illuminate an array of target antennas. This received signal at the target array is mixed with a low frequency modulation signal and re-radiated to the seeker. Target amplitude and spatial position are controlled with the low-frequency modulation signal. Most high-cost radar frequency components are eliminated from the simulator implementation. This radar scene simulation technique provides a lower cost simulation method for evaluating FM/CW modulated millimeter wave seekers. This technique is equally effective for pulse modulated seeker simulation when a millimeter wave illuminating source is added to the system. In either case, it significantly reduces the high-cost/marginal-performance millimeter wave hardware required in the simulator and can be applied to evaluation of both active and passive seeker modes. (in Band: Guidance and control systems simulation and validation techniques)


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    Titel :

    Cost effective simulation for millimeter wave guidance systems


    Weitere Titelangaben:

    Kasteneffiziente Simulation von Millimeterwellen-Fuehrungssystemen


    Beteiligte:
    Maples, V.H. (Autor:in) / Eastman, G.A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1988


    Format / Umfang :

    7 Seiten, 7 Bilder, 1 Tabelle


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




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