A new technique is proposed for estimating the frequencies within carrier-wave interference (CWI) affecting Loran-C receivers. Its novelty lies in that interference samples are taken synchronously with the Loran-C pulses and ensemble-averaged in the time domain prior to conventional spectrum analysis. Each interferer is thus automatically weighted according to its effect on the phase tracking operation of the receiver. The new method substantially increases the efficiency with which the most insidious interferers may be pinpointed. It requires little additional computational power or memory in the receiver.


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    Title :

    High-efficiency Loran-C interference identification by synchronous sampling


    Contributors:
    Yi Bian, (author) / Last, D. (author)


    Publication date :

    1997-01-01


    Size :

    1422190 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    International Loran Association

    Online Contents | 1995


    Loran system

    Engineering Index Backfile | 1945