An Investigation into Timing Synchronization of π /4-DQPSK Signals using Gardner Symbol Timing Error Detection Algorithm and Polyphase Filterbanks

Author

Mahlouji, M. ; Danesfahani, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Azad Univ. of Kashan

Volume

2

fYear

2006

fDate

24-28 April 2006

Firstpage

2274

Lastpage

2278

Abstract

The use of a polyphase filterbank with the Gardner timing error detection (TED) algorithm for symbol timing synchronization of the pi4-shifted differentially encoded quadrature phase shift keying (pi4-DQPSK) modulation scheme is investigated. The S-curve and normalized power spectral density of the simulated baseband modem incorporating the Gardner TED are presented. Closed loop performance indicates that this algorithm can also be used with the pi4-DQPSK modulation scheme to detect the timing error

Keywords

filters; quadrature phase shift keying; signal detection; synchronisation; timing; Gardner symbol timing error detection algorithm; S-curve; baseband modem; closed loop performance; differentially encoded quadrature phase shift keying modulation; pi4-DQPSK signal; polyphase filterbanks; power spectral density; symbol timing synchronization; Computer errors; Detection algorithms; Digital modulation; Frequency synchronization; Interpolation; Matched filters; Phase modulation; Quadrature phase shift keying; Signal processing algorithms; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technologies, 2006. ICTTA '06. 2nd

Conference_Location

Damascus

Print_ISBN

0-7803-9521-2

Type

conf

DOI

10.1109/ICTTA.2006.1684760

Filename

1684760