| 摘要 |
Disclosed is apparatus for operating with an RC filter ( 26, 26 A), and a corresponding method. The apparatus includes circuitry ( 32 ) for use in measuring an actual value of at least one filter component and a controller ( 34 ), coupled to the measurement circuitry, for determining at least one adaptive filter ( 36, 46 ) coefficient using the measured actual value to so as to compensate for a deviation of at least one filter component value from an ideal value. Where the filter is embodied as an RC network, the circuitry measures an actual value of both a resistor and a capacitor, and the controller uses the measured actual value of the capacitor when determining the value of a resistor.
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