%% Highpass Filter Transfer Function
% Design a 6th-order highpass FIR filter with a passband frequency of 75 kHz and a passband ripple of 0.2 dB. Specify a sample rate of 200 kHz. Compute the coefficients of the equivalent transfer function.

hpFilt = designfilt('highpassiir','FilterOrder',6, ...
         'PassbandFrequency',75e3,'PassbandRipple',0.2, ...
         'SampleRate',200e3);
[b,a] = tf(hpFilt)

% Copyright 2012 The MathWorks, Inc.