EQUALIZATION FILTER AND DISTORTION COMPENSATING METHOD

摘要

Provided is an equalization filter which solves a problem of limiting a range wherein distortion of a transmission signal can be compensated. A measuring instrument (104) measures a distortion quantity that characterizes distortion of the transmission signal. A comparator (105a) generates a differential signal indicating a difference between the transmission signal and a compensation signal. A delay device (105b) delays a differential signal based on a distortion quantity measured by the measurement instrument (104) and generates the compensation signal.