Transponder system uses phase difference between transmitted and reflected high-frequency radio waves to measure distance to target. To suppress spurious measurements of reflections from objects near target at transmitted frequency and its harmonics, transponder at target generates return signal at half transmitted frequency. System useful in such applications as surveying, docking of ships, and short-range navigation.


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    Titel :

    Transponder System for High-Frequency Ranging


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.09.1986



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



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    J. L. Hinds / M. G. Raditz / O. Shames | NTIS | 1972




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