Decibel (db) 03
Decibel (db) 03 : A logarithmic measure of relative signal power, defined as 10 log(P/P o ), or 20 log(A/A o ), where P o is the power and A o the signal amplitude at some reference level, typically the minimum or maximum signal resolvable by the instrument (P o = A o 2). The dynamic range of seismic recorders is expressed in units of dB
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