Measurements indicate doppler signal return from aircraft includes airframe line that may be as narrow as few hertz or as wide as 100 Hz, depending on aircraft size, speed, and aspect angle; spectrum also contains lines (caused by rotating machinery) that may at times be larger than airframe line and appear to contain significant fraction of total received energy; these lines may cause false detections to be made by modern range-gated filter band pulse-doppler radars in which detection occurs when spectral component exceeds preset threshold in one filter of contiguous filter bank.


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    Title :

    Doppler spectra of S-band and X-band signals


    Additional title:

    Report NRL Progress


    Contributors:
    Hynes, R. (author) / Gardner, R.E. (author)

    Published in:

    Publication date :

    1968


    Size :

    10 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :


    Doppler spectra of aircraft radar targets at S-band

    Gardner, R.E. | Engineering Index Backfile | 1962





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    Qian, M. / Wan, M. / Li, J. | British Library Online Contents | 1998