A new technique for modulation and demodulation of serial data bits employing modified pseudorandom (PN) codes is presented in this paper. In this type of modem, the data bits are serially fetched into a maximum length PN generator, K-bits at a time. These K-bits are then used as the seeds of the PN generator to generate L-chips (n-bits/chip) frame. At the receiver side, each incoming frame is correlated with a reference PN sequence. An index to the lag at which the correlation has a maximum value is used to retrieve the transmitted data.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Single-tone pseudorandom-based modems


    Contributors:
    Qahwash, M. (author)


    Publication date :

    2004-01-01


    Size :

    383410 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    DSP-Based Acoustic Telemetry Modems

    Merriam, S. | British Library Online Contents | 1993


    HSPA modems fuel mobile growth

    British Library Online Contents | 2008


    Decimating pseudorandom noise receiver

    Hogberg, S.W. / Si, J. | IEEE | 1999


    V.34-Modems: Die schnelle Vielfalt

    Melcher, Harald | IuD Bahn | 1994


    Reactive Routing: Harnessing Advanced Software Modems

    Moore, Michael J. / Bull, Ronny L. / Burleigh, Scott et al. | IEEE | 2023