Carrier frequency estimation in satellite communications

Author

Thao, Somsai ; Bellanger, Maurice ; Marguinaud, André ; De Couasnon, Tristan

Author_Institution

Electron., CNAM, Paris, France

Volume

5

fYear

1999

fDate

1999

Firstpage

2765

Abstract

For the estimation of the carrier frequency shift in satellite communications using QPSK modulation, two methods are usually considered to eliminate the data modulation: multiplying the phase of the received samples by 4 and keeping their amplitude or setting it to unity. A study of the operating threshold of the carrier frequency estimation is carried out in both cases in the presence of additive white Gaussian noise. A technique based on the expectation of a noisy sample in each case is proposed and verified by simulation, with the help of an efficient algorithm for the frequency estimation. The application envisaged is the estimation of the carrier frequency in a satellite receiver in burst mode transmission

Keywords

AWGN; digital radio; frequency estimation; quadrature phase shift keying; radio receivers; satellite communication; telecommunication switching; QPSK modulation; additive white Gaussian noise; burst mode transmission; carrier frequency estimation; digital radio; frequency shift; noisy sample expectation; operating threshold; phase multiplication; satellite communications; satellite receiver; simulation; unity amplitude; AWGN; Additive white noise; Amplitude estimation; Amplitude modulation; Frequency estimation; Phase estimation; Phase modulation; Quadrature phase shift keying; Satellite communication; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.800290

Filename

800290