A new algorithm for nonlinear estimation of PSK-modulated carrier phase

Author

Boucheret, Marie-Laure ; Mortensen, Ivar ; Favaro, Henri ; Belis, Eric

Author_Institution

Ecole Nationale Superieure des Telecommun., Toulouse, France

fYear

1993

fDate

2-4 Nov 1993

Firstpage

155

Lastpage

159

Abstract

A new algorithm for phase estimation has been developed at ALCATEL ESPACE. The idea is to perform all calculations in polar coordinates and to use the properties of the implementation in two´s complement arithmetic. Its main advantages are: no multiplications required, main functions easy to implement, and a low number of multiplications. Extra simulations have been performed at TELECOM Paris to evaluate the degradation as a function of several parameters: lengths of the bursts to be averaged, timing error, frequency deviation and implementation aspects (quantizing). Compared with the well-known Viterbi and Viterbi algorithm, this new algorithm is much simpler to implement with comparable performances

Keywords

modulation; parameter estimation; phase shift keying; satellite relay systems; ALCATEL ESPACE; PSK-modulated carrier phase; TELECOM Paris; Viterbi and Viterbi algorithm; frequency deviation; nonlinear estimation; on-board satellite demodulation; phase estimation; polar coordinates; timing error; two´s complement arithmetic;

fLanguage

English

Publisher

iet

Conference_Titel

Satellite Communications - ECSC-3, 1993., 3rd European Conference on

Conference_Location

Manchester

Print_ISBN

0-85296-603-2

Type

conf

Filename

266119