Zero-forcing equalizer (original) (raw)

The zero-forcing equalizer is a form of linear equalization algorithm used in communication systems which applies the inverse of the frequency response of the channel. This form of equalizer was first proposed by Robert Lucky. For a channel with frequency response the zero-forcing equalizer is constructed by . Thus the combination of channel and equalizer gives a flat frequency response and linear phase . In reality, zero-forcing equalization does not work in most applications, for the following reasons: