cascaded_hp_imp.m

声音过滤器工具大集合.

function y = cascaded_HP_imp(x, a, b)
%CASCADED_HP_IMP - Implements Nth-Order High-Pass Filter by cascading
%                  M second order high-pass sections, where N = 2M.
%               
%     usage:  y = cascaded_HP_imp(x, a, b)
%     
%           x = input vector
%           y = output vector
%           b = M x three matrix, numerator coefficients
%           a = M x three matrix, denominator coefficients
%           M = Scalar, number of second order sections
%
%     See also cascaded_HP.m 

%   References:
%      [1]  John Lane, Jayant Datta, Brent Karley, Jay Norwood, "DSP Filters", 
%           PROMPT Publications(an imprint of Sams Technical Publishing), 
%           Indianapolis, IN, 2001, page 139.
%           Book's website: www.dspaudiocookbook.com

%  Copyright (c) 2005 Bo餫