Title :
A digital single sideband modulator
Author :
Gurcan, M.K. ; Watteau, A. ; Goodman, D.J. ; James, M.D.
Author_Institution :
Philips Res. Lab., Redhill, UK
Abstract :
The authors describe an interpolation method which greatly simplifies the RF complexity of D.K. Weaver´s (1956) method of single-sideband (SSB) generation for a digital implementation. The baseband I and Q signal samples are interpolated using simple accumulators and the interpolated samples are multiplexed to produce the SSB signal samples. The proposed method would be ideally suited for generating SSB at a fixed intermediate frequency, and is also suitable for generating SSB by selecting one of the harmonics of the carrier frequency using a simple filter. Simulations confirm that good performance can be achieved with this method.<>
Keywords :
digital communication systems; interpolation; modulators; signal processing; accumulators; digital single sideband modulator; filter; fixed intermediate frequency; harmonics; interpolation method; Amplitude modulation; Band pass filters; Bandwidth; Baseband; Digital modulation; Interpolation; Low pass filters; RF signals; Radio frequency; Signal processing;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15287
