Title :
A novel digital lock detector for QPSK receiver
Author :
Lee, Kyung Ha ; Jung, Seung Chul ; Choi, Hyung Jin
Author_Institution :
Dept. of Electron. Eng., Sung Kyun Kwan Univ., Suwon, South Korea
fDate :
6/1/1998 12:00:00 AM
Abstract :
A new lock detection algorithm for digital quadrature phase-shift keying (QPSK) receiver is proposed. Analysis of the detector´s output characteristics is given and is verified by using computer simulation. Performance degradation due to carrier jitter is also considered. Analytic and simulation results show that the proposed algorithm is very useful as a lock detector in digital receivers because it has a good detection performance and simple structure
Keywords :
digital communication; jitter; quadrature phase shift keying; receivers; signal detection; carrier jitter; computer simulation; detection performance; digital QPSK receiver; digital lock detector; lock detection algorithm; output characteristics; quadrature phase-shift keying; simulation results; Algorithm design and analysis; Computational modeling; Computer simulation; Degradation; Detection algorithms; Detectors; Jitter; Performance analysis; Phase shift keying; Quadrature phase shift keying;
Journal_Title :
Communications, IEEE Transactions on
