Signal detecting method and device, and radiation image signal detecting method and system

摘要

A signal detecting method, which employs correlated double sampling, capable of setting an appropriate baseline sampling time and improving signal-to-noise ratio of the signal. The time constant tau in the low-pass filtering by a first holding circuit, which is constructed to sample the baseline signal, and the baseline sampling time t are set at values that satisfy the relationship of t>=10xtau.