Phase synchronizer for fading channels with the modified method of least squares

Author

Sano, Hiroyasu ; Hagiwara, Masafumi ; Nakagawa, Masao

Author_Institution

Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan

fYear

1990

fDate

3-6 Apr 1990

Firstpage

1659

Abstract

A digital signal processing (DSP) phase synchronizer using the method of least squares for fading channels (PS-FC) is presented. The proposed PS-FC has many characteristics which are quite different from conventional phase-locked loops (PLLs). For example, it can suppress noise using a modified method of least squares instead of a loop filter. The PS-FC can satisfy the phase tracking performance and the noise suppression performance simultaneously, which cannot be done by conventional PLLs. The pull-in range of the PS-FC is about three times as wide as that of the conventional PLL. It can estimate phase fluctuations due to fading much more accurately because of the modified method of least squares. Computer simulation shows its superior performance

Keywords

computerised signal processing; fading; interference suppression; least squares approximations; synchronisation; telecommunication channels; DSP phase synchronizer; fading channels; modified least squares methods; noise suppression performance; phase tracking performance; Computer simulation; Digital signal processing; Fading; Filters; Fluctuations; Least squares approximation; Least squares methods; Phase estimation; Phase locked loops; Phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.115795

Filename

115795