The combination of coding and low index modulation can result in both bandwidth and power efficient modem design. The low index modulation format is obtained by using a frequency division and multiplication network to alter the modulation index of 1/2 for convertioned MSK to a lower value. This lower value modulation index in concert with restricted range encoding provides a system that can achieve a 2 bits/sec/Hz bandwidth efficiency at a power level equivalent to that required for MSK. The design concepts are such that data rates in the hundreds of megabits/second are practical.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Modem design using continuous phase modulation with coding


    Additional title:

    Modem Entwicklung mit kontinuierlicher Phasenmodulation mit Codierung


    Contributors:
    Ryan, C. (author)


    Publication date :

    1985


    Size :

    6 Seiten, 12 Bilder, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Adaptive modem

    Lallo, P. | Tema Archive | 2000


    Modem ports

    Burr, A. | Online Contents | 2000


    Continuous phase frequency/phase modulation

    QU, SHOUXING / FLEISHER, S. | AIAA | 1992


    Evolution in modem heavy weight torpedoes design

    Charlot, Y. / Galli, C. / Carmillet, J.-P. et al. | British Library Conference Proceedings | 1997