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Multiantenna scanning diversity system for mobile TV reception with independently optimized picture and sound quality
Author(s) -
Lindenmeier H. K.,
Reiter L. M.,
Hopf J. F.
Publication year - 1993
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/93rs01830
Subject(s) - computer science , multipath propagation , antenna diversity , broadcasting (networking) , sound quality , telecommunications , antenna (radio) , broadband , diversity scheme , channel (broadcasting) , intermodulation , electronic engineering , fading , engineering , speech recognition , computer network , bandwidth (computing) , amplifier
The presented mobile multiantenna scanning diversity system for terrestrial TV highly improves the reception in cars making use of four active broadband TV antennas. The diversity systems for picture and sound choose independently from each other the optimum antenna signal among the four TV antennas based upon different diversity criteria. An indicator sensitive to the RF level evaluates the picture quality at the end of each video line. The TV sound is optimized by application of a diversity processor originally designed for FM broadcasting and is available now as an integrated circuit. This processor is sensitive to noise, multipath distortions, and three types of interferences: cochannel, adjacent channel, and intermodulation interferences.