www.gusucode.com > signal 案例源码程序 matlab代码 > signal/MaximumAndMinimumPhaseLatticeFiltersExample.m
%% Maximum- and Minimum-Phase Filters % Design maximum-phase and minimum-phase lattice filters and verify their % phase type. % Copyright 2015 The MathWorks, Inc. %% k = [1/6 1/1.4]; bmax = latc2tf(k,'max'); bmin = latc2tf(k,'min'); max_flag = ismaxphase(bmax) min_flag = isminphase(bmin) %% % Given a filter defined with a set of single precision numerator and % denominator coefficients, check if it is maximum phase for different % values of the tolerance. b = single([1 -0.9999]); a = single([1 0.45]); max_flag1 = ismaxphase(b,a) max_flag2 = ismaxphase(b,a,1e-3)