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

Author

D´Andrea, Nunzio Aldo ; Luise, Marco

Author_Institution

Dept. of Inf. Eng., Pisa Univ., Italy

Volume

41

Issue

9

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

1296

Lastpage

1299

Abstract

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

Keywords

amplitude modulation; fading; filtering and prediction theory; radio receivers; signal processing; synchronisation; QAM systems; computer simulation; design; ideal transmission channel; impulse response; incoming signal; jitter-free clock recovery; microwave radio communication systems; multipath fading; prefiltering; quadrature-amplitude-modulation; radio receiver; shaping filter; signal processing; synchronizer performance; Clocks; Detectors; Equations; Fading; Frequency synchronization; Pulse modulation; Quadrature amplitude modulation; Signal processing algorithms; Steady-state; Timing;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.237846

Filename

237846