C/N RATIO DETECTION CIRCUIT AND SIGNAL RECEIVING CIRCUIT

A C/N ratio detection circuit includes a voltage detector, an averaging section, a time variation range calculator, and a C/N ratio calculator. The voltage detector measures an input voltage of a signal. The averaging section calculates an average of the input voltage over a predetermined time. The...

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Bibliographic Details
Main Author FUJISHIMA, Tomoyasu
Format Patent
LanguageEnglish
French
German
Published 13.12.2017
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
TRANSMISSION
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Summary:A C/N ratio detection circuit includes a voltage detector, an averaging section, a time variation range calculator, and a C/N ratio calculator. The voltage detector measures an input voltage of a signal. The averaging section calculates an average of the input voltage over a predetermined time. The time variation range calculator calculates a time variation range of the input voltage over the predetermined time. The C/N ratio calculator calculates a C/N ratio of the signal by using the average and time variation range of the input voltage.
Bibliography:Application Number: EP20160742997