The functional requirements and operating environment constraints are defined for an independent landing monitor ILM which provides the flight crew with an independent assessment of the operation of the primary automatic landing system. The capabilities of radars, TV, forward looking infrared radiometers, multilateration, microwave radiometers, interferometers, and nuclear sensing concepts to meet the ILM conditions are analyzed. The most critical need for the ILM appears in the landing sequence from 1000 to 2000 meters from threshold through rollout. Of the sensing concepts analyzed, the following show potential of becoming feasible ILM's: redundant microwave landings systems, precision approach radar, airborne triangulation radar, multilateration with radar altimetry, and nuclear sensing.


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    Title :

    Analytical evaluation of ILM sensors, volume 1


    Contributors:
    Kirk, R. J. (author)

    Publication date :

    1975-09-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    Analytical evaluation of ILM sensors

    Kirk, R. J. / Johnson, C. E. / Doty, D. | NTRS | 1975



    Evaluation of Sensors for SPACETRACK Augmentation (ESSA). Volume II. Appendix

    R. E. Bishop / R. C. Corson / O. D. Hawley et al. | NTIS | 1974