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Design and analysis of a jitter-free clock recovery scheme for QAM systems

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2 Author(s)
D'Andrea, N.A. ; Dept. of Inf. Eng., Pisa Univ., Italy ; Luise, M.

Performance of the digital clock recovery scheme proposed by F.M. Gardner (1986), when applied to quadrature-amplitude-modulation (QAM) microwave radio communication systems is investigated. In particular, it is shown how to improve such a scheme by means of appropriate prefiltering of the incoming signal. The impulse response of the shaping filter is designed to achieve pattern-jitter-free clock recovery in the case of an ideal transmission channel. The impact of multipath fading on synchronizer performance is evaluated by means of computer simulation

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Communications, IEEE Transactions on  (Volume:41 ,  Issue: 9 )