A unified eigenfilter approach to the design of two-dimensionalzero-phase FIR filters with the McClellan transform

摘要

A unified eigenfilter approach is proposed for determining thenmean-square-optimal coefficients of the McClellan transformation. Thenapproach applies to all filter shapes without the use of prior knowledgenof the properties of the coefficients. Several design examples fornarbitrarily shaped and oriented 2-D fan, elliptical, and diamond filtersnare given to demonstrate the results achieved with this method.nComparisons with other recently published methods are made tondemonstrate the advantages of our method