Performance analysis of extended OQPSK carrier phase recovery algorithm in satellite channel

Author

Jung, Ji Won ; Kim, Myung Sup

Author_Institution

Dept. of Radio & Sci. Eng., Korea Maritime Univ., Pusan, South Korea

Volume

46

Issue

1

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

52

Lastpage

57

Abstract

This paper proposes a new extended decision-directed decision-estimated phase recovery algorithm based on maximum likelihood parameter estimation for OQPSK (offset QPSK). In this scheme, compared to the conventional one, the data dependent noise of the phase recovery loop is reduced by inserting a filter with 2 taps to the in-phase and quadrature channel respectively before the phase detector. The proposed scheme is compared to the conventional QPSK scheme with respect to BER (bit error rate) and phase error for roll-off factors of the baseband filter, output backoffs of the nonlinear satellite channel and loop bandwidth

Keywords

FIR filters; error statistics; maximum likelihood estimation; quadrature phase shift keying; satellite communication; synchronisation; BER; baseband filter; bit error rate; data dependent noise; extended OQPSK carrier phase recovery algorithm; extended decision-directed decision-estimated phase recovery algorithm; in-phase channel; loop bandwidth; maximum likelihood parameter estimation; nonlinear satellite channel; offset QPSK; output backoffs; performance analysis; phase error; phase recovery loop; quadrature channel; roll-off factors; Bit error rate; Filters; Maximum likelihood detection; Maximum likelihood estimation; Noise reduction; Parameter estimation; Performance analysis; Phase detection; Phase noise; Quadrature phase shift keying;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.826381

Filename

826381