A consideration on blind equalizer using the orthogonal filter

In this paper, we consider the blind equalization for long impulse response length, such as indoor sound. We use FIR or IIR filter for a conventional blind equalizer. But, these equalizers have each problems. A problem of the conventional blind equalizer using FIR filter is lower convergence rate, and a problem of blind equalizer using IIR filter is to have to control the stability of the system. Then, we propose a new blind equalizer algorithm using the orthogonal filter,and we get rid of these problems. Finally, we confirm the validity of the proposed algorithm through computer simulation.