Title :
A modified timing synchronization algorithm for QPSK in digital receiver
Author :
Zhang, Lili ; He, Zhiming
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A modified timing recovery method is designed for QPSK demodulation. On the basis of Gardner interpolation theory about timing synchronization, the complex interpolation filter is replaced with two-stage cascade filters. Taking the QPSK signal for instance, the system is built and simulated, which proves that it has good performance.
Keywords :
demodulation; filtering theory; interpolation; quadrature phase shift keying; radio receivers; synchronisation; Gardner interpolation theory; QPSK demodulation; complex interpolation filter; digital receiver; timing recovery method; timing synchronization algorithm; two-stage cascade filter; Algorithm design and analysis; Filtering algorithms; Interpolation; Phase shift keying; Signal processing algorithms; Synchronization; Gardner algorithm; QPSK; fractional rate; timing recovery; timing synchronization;
Conference_Titel :
Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on
Conference_Location :
Deng Leng
Print_ISBN :
978-1-4577-0535-9
DOI :
10.1109/AIMSEC.2011.6011207
