Title :
Interrelation and Combination of Various Types of Modulation
Author_Institution :
Telecommmunication Co. of Australia Pty. Ltd., Alberton, So. Australia
Abstract :
An examination of the frequency distribution of the power in typical broadcast signals shows that low-deviation phase modulation (PM) should have advantages over amplitude (AM) and frequency modulation (FM). A method of stereo broadcasting is also proposed in which the sum of the two channels is transmitted as AM and the difference as PM.
Keywords :
Amplitude modulation; Australia; Broadcasting; Communication channels; Frequency modulation; Helium; Phase modulation; Telecommunications;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1960.287415
