An algorithm for blind Doppler frequency estimation from orthogonal frequency division multiplexing (OFDM) signals transmitted by low Earth orbit (LEO) satellites is developed. A method for resolving the ambiguity in the Doppler estimate is also discussed. Two sets of experimental results are presented. The first demonstrates blind Doppler estimation from terrestrial fifth-generation (5G) signals on a mobile ground vehicle, achieving 14.5 Hz Doppler root mean-squared error (RMSE). The second demonstrates an unmanned aerial vehicle navigating using the proposed approach with emulated 5G signals from two Orbcomm LEO satellites for a period of 2 minutes, achieving 15.16 m position RMSE.


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    Title :

    Blind Doppler Tracking from OFDM Signals Transmitted by Broadband LEO Satellites


    Contributors:


    Publication date :

    2021-04-01


    Size :

    2416336 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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