Benefits of the CORDIC-algorithm in a versatile COFDM modulator/demodulator design

Author

Mondwurf, Stephan W.

Author_Institution

Fac. of Electr. Eng. & Inf. Technol., Wuppertal Univ., Germany

fYear

2002

fDate

6/24/1905 12:00:00 AM

Abstract

Following a short description of the Fast-Fourier-Transformation (FFT) this paper discusses the advantages of the CORDIC-algorithm (Coordinate Rotation Digital Computer) compared to complex multiplication in butterfly-operations and NCOs (Numerical Controlled Oscillator) which are used in many digital transmission systems. The implementation of the CORDIC-algorithm in programmable logic devices is shown by the example of a versatile modulator for digital terrestrial television.

Keywords

OFDM modulation; digital arithmetic; digital television; fast Fourier transforms; modems; multiplying circuits; oscillators; programmable logic devices; COFDM modulator/demodulator; CORDIC algorithm; butterfly operation; complex multiplication; digital terrestrial television; digital transmission system; fast Fourier transform; numerical controlled oscillator; programmable logic device; Communication standards; DSL; Data communication; Demodulation; Digital modulation; Digital multimedia broadcasting; Modulation coding; Multiplexing; Oscillators; Programmable logic arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Systems, 2002. Proceedings of the Fourth IEEE International Caracas Conference on

Print_ISBN

0-7803-7380-4

Type

conf

DOI

10.1109/ICCDCS.2002.1004111

Filename

1004111