CARRIER POWER TO NOISE POWER RATIO MEASURING SYSTEM

摘要

CARRIER POWER TO NOISE POWER RATIO MEASURING SYSTEM A system for measuring a carrier power to noise power ratio of a signal corrupted by noise comprises a detector for detecting the signal, a circuit to sample the output signal from the detector, a circuit for holding the sampled detector output, and an A/D converter for converting the signal held as described above into a digital quantity. This system is characterized by being so constructed as to effect the measurement of the carrier power to noise power ratio of a signal under test by finding at least one of the squared average value, the average value, and the dispersion on the basis of the output of the aforementioned A/D converter. BACKGROUND OF THE INVENTION FIELD OF THE INVENTION: This invention relates to a system for measuring the carrier power to noise power ratio of a signal transmitted through a wired or wireless transmission path. DESCRIPTION OF THE PRIOR ART: A rich variety of communication methods have been