This paper gives performance results for transversal-filter equalization of quadriphase phase-shift-keyed (QPSK) signals with two-component multipath and demodulator phase error. An analytical expression for optimum, minimum mean-square-error tap weights in terms of the multipath and signal parameters is given. Probability of error results for no equalization and equalization with adaptive decision-feedback tap-weight adjustment are compared. The results show that significant improvement can be obtained with relatively simple equalizer structures.


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    Title :

    Equalization of QPSK Data Transmission in Specular Multipath


    Contributors:
    Ziemer, R.E. (author) / Ryan, C. R. (author)

    Published in:

    Publication date :

    1974-09-01


    Size :

    1598709 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English