bsn2.m

Zero-phase filtering using B-Spline Networks with dilation 2.

Similar to "bsn1.m", "bsn2.m" provides dilation 2 in the B-Spline network (BSN) which are used as a new way of performing approximate zero-phase low pass filtering.

The transfer function of the dilated BSN filter can be derived with one parameter.

For more details, check the paper
http://www.csois.usu.edu/publications/pdf/pub049.pdf