SIGNAL DETECTING METHOD AND DEVICE, AND RADIOGRAPH SIGNAL DETECTING METHOD AND SYSTEM

摘要

PROBLEM TO BE SOLVED: To realize the improvement in S/N of a signal component by setting a proper base line sampling time in a signal detecting method for executing correlation double sampling processing.

SOLUTION: The values of a time constant τ of low pass filter processing and the base line sampling time t in a first holding circuit 32 for sampling a base line signal are set so as to satisfy the formula of t≥10×τ.

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