www.gusucode.com > signal 工具箱matlab源码程序 > signal/@filtdes/@firclsbs/design.m
function Hd = design(h, d) %DESIGN Design the filter % Author(s): J. Schickler % Copyright 1988-2003 The MathWorks, Inc. N = get(d, 'Order'); Fc1 = get(d, 'Fc1'); Fc2 = get(d, 'Fc2'); Upper = [1+get(d, 'Dpass1Upper') get(d, 'DstopUpper') 1+get(d, 'Dpass2Upper')]; Lower = [1-get(d, 'Dpass1Lower') -get(d, 'DstopLower') 1-get(d, 'Dpass2Lower')]; b = fircls(N, [0 Fc1 Fc2 1], [1 0 1], Upper, Lower); Hd = dfilt.dffir(b); % [EOF]