Friday, 7 September 2007

Understand dB

For example,

gain response could be specified as 0.707 or as −3.0103 dB,

gain might be specified as 0.0001 or −80.0 dB.

Formula --

gain dB = 20⋅ log(gain)

Reason :

values in decibels are more manageable for very small

reference :

1: Practical Analog and Digital Filter Design (Artech House Microwave Library)
by Les Thede

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