Title :
Analysis of distortion in a PAM-FM television transmission and application to the MUSE signal
Author_Institution :
NHK Sci. & Tech. Res. Lab., Tokyo, Japan
fDate :
9/1/1991 12:00:00 AM
Abstract :
From the viewpoint of signal format, the MUSE signal for HDTV-DBS transmission is a kind of pulse amplitude modulation (PAM) signal. Since PAM signals have never been used for TV signal transmission, the author investigated the relationship between distortion due to FM transmission and picture quality. The relationship is made clear by the following two steps. First, a rating function, by which the degree of picture quality impairment due to baseband distortion can be described, is developed by applying the variable frequency electric circuit theory due to J.R. Carson and T.C. Fry (1937). The degree of picture quality impairment due to FM transmission of the MUSE signal can be obtained by the rating function with calculated waveform distortion. This approach can be used for other PAM television signals such as the HD-MAC system
Keywords :
direct broadcasting by satellite; encoding; frequency modulation; high definition television; pulse amplitude modulation; television broadcasting; television reception; HDTV-DBS transmission; MUSE signal; PAM-FM television transmission; baseband distortion; calculated waveform distortion; multiple subNyquist sampling encoding; picture quality; pulse amplitude modulation; rating function; satellite broadcasting; signal format; variable frequency electric circuit theory; Amplitude modulation; Bandwidth; Baseband; Circuit theory; Distortion; Distortion measurement; Frequency estimation; Frequency modulation; Logistics; Performance evaluation; Pulse modulation; Satellite broadcasting; Signal analysis; TV; Testing;
Journal_Title :
Broadcasting, IEEE Transactions on
