The paper presents a new approach for precision navigation that uses AM radio broadcasts and a digital phase measurement technique. Using this new digital approach and also several conventional analog techniques, the phase difference of two received signals is measured. By sampling these signals using a high speed A/D converter and applying a Discrete Fourier Transform (DFT), phase differences can be measured with an accuracy of ±0.05°. This provides ±0.032 m range accuracy when using a 1300kHz AM radio signal.


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    Title :

    Phase Measurements for Direct Conversion AM Radio Navigation


    Contributors:
    Dinh, Anh (author) / Mason, Ralph (author) / Palmer, Ron (author) / Runtz, Ken (author)

    Published in:

    Publication date :

    1999-01-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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