Control for adaptive equalizer.

摘要

In a digital mobile communication system, a plurality delay elements (1 to 4) sequentially receive and delay data and a plurality of amplifiers (5 to 9) receive the data from the respective taps of the delay elements and weight them. An adder (10) adds the weighted signals from the amplifiers and a discriminator (11) provides a reference signal presumed based upon the added signal from the adder. An operation and updating device (13a, 14) operates the gain of at least one of the amplifiers by a sequential LMS method and updates the gain of the amplifier each time when.a data is inputted into the delay elements. As a result of this, a digital mobile communication system having a high transmission rate using the LMS method can be provided.