Design of Linear Phase FIR Filter using Frequency Sampling Method. The programming technique was same as that for Window Function Method. It was designed for a LPF and HPF instead of BPF.
The input specifications were:
(1) Pass band Attenuation (Ap) (2) Stop band Attenuation (As )
(3) Pass band Frequency (Fp) in Hz (4) Stop band Frequency (Fs) in Hz
(5) Sampling Frequency in Hz
The phase spectrum was linear. Hence it is a FIR Filter.
https://drive.google.com/open?id=0Bzfvoo_rjoa8X2JPTHpLdHNVa3M
The input specifications were:
(1) Pass band Attenuation (Ap) (2) Stop band Attenuation (As )
(3) Pass band Frequency (Fp) in Hz (4) Stop band Frequency (Fs) in Hz
(5) Sampling Frequency in Hz
The phase spectrum was linear. Hence it is a FIR Filter.
https://drive.google.com/open?id=0Bzfvoo_rjoa8X2JPTHpLdHNVa3M
frequency sampling method can be used to design filters with arbitrary frequency resopnse.
ReplyDeleteyes, but in this experiment we still observed linear phase
ReplyDeletebut we get both linear and non-linear phase spectrum in frequency sampling technique
ReplyDelete