Title :
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
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;
Conference_Titel :
Information and Communication Technologies, 2006. ICTTA '06. 2nd
Conference_Location :
Damascus
Print_ISBN :
0-7803-9521-2
DOI :
10.1109/ICTTA.2006.1684760
