... useful to specify the selection of the number ofpoles and zeros, Np and Nq. The more poles and zeros used, the better approximation result may be obtained. On the other hand, more parameters ... although the least-squares method has the lowest computational cost in filter implementation, itscomplexity in filter estimation is much higher than the othertwo. On the other hand, the CAPZ ... Estimation. From (9), (12), and (30), it is foundthat estimating the inverse filters h, t,andc consumes the major computation of crosstalk cancellation filter estima-tion. Thus only the computation...