Channel-individual adaptive beamforming for mobile satellite communications

Author

Gebauer, Thomas ; Göckler, Heinz G.

Author_Institution

ANT Bosch Telecom, Backnang, Germany

Volume

13

Issue

2

fYear

1995

fDate

2/1/1995 12:00:00 AM

Firstpage

439

Lastpage

448

Abstract

A digital frequency-division multiplex demultiplexer for single channel per carrier (SCPC) signals was developed for use in a digital channel-individual beamforming network for an adaptive satellite array antenna for mobile satellite communications. The available ASIC (35000 gate functions in CMOS technology, clock rate up to 30 MHz with low power consumption) permits the separation of FDM signals comprising up to 16 channels. Starting from a suitable model for the demultiplexer beamforming system, this paper describes the analysis, design, simulation and implementation of the hierarchically structured demultiplexer. Aspects of digital beamforming are only discussed as far as necessary for understanding

Keywords

CMOS integrated circuits; adaptive antenna arrays; application specific integrated circuits; array signal processing; demultiplexing equipment; digital radio; frequency division multiplexing; mobile satellite communication; satellite antennas; 30 MHz; ASIC; CMOS technology; FDM signals; SCPC signals; adaptive beamforming; adaptive satellite array antenna; analysis; clock rate; demultiplexer; design; digital channel-individual beamforming network; digital frequency-division multiplexing; low power consumption; mobile satellite communications; simulation; single channel per carrier signals; Adaptive arrays; Adaptive systems; Antenna arrays; Array signal processing; Artificial satellites; CMOS technology; Frequency division multiplexing; Mobile antennas; Satellite antennas; Satellite communication;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.345889

Filename

345889