An all digital 8-DPSK TCM modem for land mobile satellite communications

Author

Jedrey, Thomas C. ; Lay, Norman E. ; Rafferty, William

Author_Institution

Jet Propulsion Lab., Pasadena, CA, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

1722

Abstract

The authors report the real-time digital implementation of an 8-DPSK trellis-coded-modulation (TCM) modem for operation on an L -band, 5 kHz-wide, land mobile satellite (LMS) channel. The model architecture, some of the signal-processing techniques used in the modem to combat the LMS channel impairments (principally multipath fading and Doppler frequency shifts) and the model performance over the AWGN (additive white Gaussian noise) channel are presented

Keywords

computerised signal processing; digital communication systems; modems; phase shift keying; real-time systems; satellite relay systems; 5 kHz; AWGN; Doppler frequency shifts; L-band; UHF; additive white Gaussian noise; digital 8-DPSK TCM modem; land mobile satellite communications; model architecture; multipath fading; real-time digital implementation; signal-processing; trellis-coded-modulation; Bit error rate; L-band; Laboratories; Least squares approximation; Modems; Modulation coding; Propulsion; Satellite communication; Shadow mapping; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.196949

Filename

196949