Implementation structure of 3-D FIR digital filters based on the transformation method
Guergana S. Mollova · 2008
In this paper, we show the application of Chebyshev structure proposed by McClellan and Chan for design of three-dimensional (3-D) filters based on the McClellan transformation. We consider the implementation of 3-D FIR cone-shaped filters designed recently by Mollova and Mecklenbrauker. The Chebyshev structure is originally developed for 2-D digital filters designed by transformation method, but it is also applicable for 3-D filters design. By using analytical expressions for transformation function and 3-D direct convolution, an effective realization of the transformation subfilter is proposed.