Frequency-and Amplitude-Dependent Phase Effects In Television Broadcast Systems

The television broadcast system in this paper is defined as those elements between and including the modulation process at the transmitter and the demodulation process at the receiver. The effects to be considered include: 1. Time-domain distortion due to departure from linear phase vs frequency (and from flat amplitude response vs frequency). 2. Non-linear distortion (with envelope demodulation) due to the quadrature-phase signal component resulting from vestigial sideband asymmetry. 3. Differential phase and other distortions due to incidental phase modulation of the visual carrier. 4. Intercarrier noise due to visual carrier incidental phase or frequency modulation.