Title :
A simplified I-Q digital multicarrier demodulator
Author :
Re, Enrico Del ; Fantacci, R.
Author_Institution :
Dept. of Electr. Eng., Florence Univ., Italy
Abstract :
An on-board (satellite) processing system which receives an input frequency-division multiple-access signal and supplies an output to interface the time-division multiplexed links is considered. The system separates each individual radio channel, its demodulation, and its correct switching to the appropriate downlink channel. An appropriate name for the on-board processing system performing the first two operations is the multicarrier demodulator (MCD). Two main functions are implemented by an MCD: demultiplexing and demodulation. The focus is on a digital implementation of the MCD, because it offers several advantages such as flexibility, VLSI integrability, and better efficiency
Keywords :
VLSI; demodulators; digital integrated circuits; frequency division multiple access; satellite relay systems; signal processing; time division multiplexing; FDMA; I-Q digital multicarrier demodulator; TDM; VLSI; demodulation; demultiplexing; digital implementation; downlink channel; frequency-division multiple-access; onboard processing system; radio channel; satellite relay systems; time-division multiplexed links; Demodulation; Demultiplexing; Downlink; Filters; Frequency division multiaccess; Payloads; Quadrature phase shift keying; Satellite broadcasting; Signal processing; Very large scale integration;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49846
