TIME-DOMAIN ADAPTIVE EQUALIZER AND JUDGING FEEDBACK FILTER INCLUDED IN WHICH

摘要

The invention relates to a time domain self-adaptive balancer, wherein input signal flows to a forward filter which output flows into an input of an adder, another two inputs of the adder is the output of a first feedback filter and the output of a second feedback filter, the adder adds the input signals, which output is connected with the input of a judger, an error generator according to the input and output of the judger generates an error signal, a tapping factor refresher according to the error signal generates a tapping factor to refresh the tapping factor of the forward filter and the judgment feedback filter. The first feedback filter uses a rotary structure, and the second feedback filter uses a non-rotary structure, which input has some time delay relative to the input of the first feedback filter. The stage numbers of the rotary structure and non-rotary structure are decided according to the length of last path.