Synchronization in M-PSK modems

Author

Osborne, W. ; Kopp, Brian

Author_Institution

New Mexico State Univ., Las Cruces, NM, USA

fYear

1992

Firstpage

1436

Abstract

It is economical for a single modem to receive multiple modulation formats. The use of binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8PSK, and 16PSK modulation is considered. The authors address a technique for achieving carrier synchronization for all four of these PSK schemes in a single modem. This is accomplished by using quadrature channel carrier recovery processing and a version of the maximum a posteriori (MAP) estimation phase detector algorithm. A model for the simulation of this tracking process is derived, and results are presented to confirm its functionality

Keywords

minimum shift keying; modems; phase shift keying; signal detection; synchronisation; 16PSK; 8PSK; BPSK; MAP estimation; MPSK modems; QPSK; binary phase shift keying; carrier synchronization; maximum a posteriori estimation; phase detector algorithm; quadrature channel carrier recovery processing; quadrature phase shift keying; simulation; tracking; Binary phase shift keying; Filters; Maximum a posteriori estimation; Military standards; Modems; NASA; Phase modulation; Quadrature phase shift keying; Signal generators; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1992. ICC '92, Conference record, SUPERCOMM/ICC '92, Discovering a New World of Communications., IEEE International Conference on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-0599-X

Type

conf

DOI

10.1109/ICC.1992.268109

Filename

268109