New interpolator and data detector for full digital BPSK demodulator

Author

Gomes de Figueredo, Caio ; Pereira de Lucena, Antonio Macilio ; Mota, Joao C. M.

Author_Institution

Teleinfomatic Eng. Dept. (DETI), Fed. Univ. of Ceara (UFC), Fortaleza, Brazil

fYear

2014

fDate

17-20 Aug. 2014

Firstpage

1

Lastpage

5

Abstract

This work presents a new structure for an all-digital BPSK demodulator developed for space communications that performs simultaneously the sampling and down conversion from intermediate frequency signal to the baseband signal. A new interpolator is proposed in order to simplify the demodulator implementation. This interpolator correlates the samples of the output signal in such way that it was necessary to design a new data detector appropriate to process the samples corrupted by gaussian and colored noise. The effects of the new interpolation at the noise are analyzed as well as the way it affects the whole demodulator performance. Simulations were performed and the results are presented to confirm theoretical analysis.

Keywords

data communication; demodulators; interpolation; noise; phase shift keying; satellite communication; signal sampling; Gaussian method; baseband signal; colored noise; data detector; demodulator implementation; full digital BPSK demodulator; intermediate frequency signal; interpolator; space communications; Baseband; Demodulation; Detectors; Equations; Interpolation; Mathematical model; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Symposium (ITS), 2014 International

Conference_Location

Sao Paulo

Type

conf

DOI

10.1109/ITS.2014.6948019

Filename

6948019