Title :
New total carrier phase estimator in fully phase modulated signals
Author :
Kim, You Ho ; Lee, Hwang Soo
Author_Institution :
Dept. of Inf. and Commun. Eng., Korea Adv. Energy Res. Inst., Seoul, South Korea
Abstract :
The open-loop phase estimator (OLPE) has been used to recover the carrier phase for burst mode communications. However, OLPE is not optimal in the presence of frequency offset. The authors propose a new carrier phase estimator in a feedforward form to restore the total carrier phase, including the carrier phase offset and/or the carrier frequency offset. The proposed estimator has significantly less complex hardware compared with the maximum likelihood estimator (MLE) in practical implementations.
Keywords :
demodulation; estimation theory; interference (signal); phase modulation; QPSK; SNR; burst mode communications; carrier phase offset; carrier phase recovery; feedforward form; frequency offset; fully phase modulated signals; total carrier phase estimator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931279