Third-order distortion of television and sound multiplexed signals in satellite FM systems
Abstract
An analysis of third-order distortion components arising when video and audio multiplexed signals frequency modulate an RF carrier in a satellite system is presented. Composite baseband signal and distortion spectra are derived, and the signal-to-distortion power ratio is evaluated. Preemphasis and delay equalization effects are shown to significantly enhance the signal-to-distortion ratio. Suggestions regarding preemphasis and filtering are offered, and numerical examples and computer results are given.
- Publication:
-
COMSAT Technical Review
- Pub Date:
- May 1983
- Bibcode:
- 1983COMTR..13..107H
- Keywords:
-
- Communication Satellites;
- Frequency Division Multiplexing;
- Frequency Modulation;
- Satellite Television;
- Signal Distortion;
- Sound Transmission;
- Color Television;
- Signal To Noise Ratios;
- Systems Engineering;
- Television Transmission;
- Transmission Efficiency;
- Video Communication;
- Voice Communication;
- Communications and Radar