www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/WindowMethodLowpassDesignExample.m
%% Window Method Lowpass Design % Create a filter of order 10 with a 6-dB frequency of 9.6 kHz and a % sampling frequency of 48 kHz. Look at the available design methods. %% d = fdesign.lowpass('N,Fc',10,9600,48000); designmethods(d) %% % The only valid design method is the FIR window method. Design the filter. Hd = design(d); %% % Display the filter magnitude response. The -6 dB point is at 9.6 kHz, as % expected. fvtool(Hd)