Need help in designing a filter which removes all 1 Hz frequencies.
5 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I have white noise from this white noise i want to remove all 1 Hz frequencies using LPF
In matlab how can be design a LPF with 1Hz cutoff freq
0 comentarios
Respuesta aceptada
Wayne King
el 28 de Mayo de 2012
There are many ways. You have not told us your sampling frequency. Let me assume it is 60-Hz.
d = fdesign.lowpass('Fp,Fst,Ap,Ast',1,3,0.5,40,60);
Hd = design(d);
% View filter magntidue response
fvtool(Hd)
% to filter data
output = filter(Hd,inputdata);
Más respuestas (1)
Wayne King
el 29 de Mayo de 2012
I answered this in your other post. If your sampling frequency is 0.0333 Hz, then you cannot resolve 1 Hz.
1 comentario
Wayne King
el 29 de Mayo de 2012
http://www.mathworks.com/matlabcentral/answers/39619-need-to-design-a-fir-lpf-with-cuff-frequency-at-1-hz
Ver también
Categorías
Más información sobre Get Started with DSP System Toolbox en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!