omidi_sbu
Banned
noisy hilbert transform?
ihave written a MATLAB code for a hilbert transformer :
first a half band filter is generated by sampling from raised cosine function in frequency domain and taking inverse fourie transformer,
the hilbert transform is computed by subtracting .5 from transfer function and modulating the signal by e^jnpi/2 in the time domain and added with half of the real signal, but the result is so noisy compared with matlab analytic filter,why?
(i may made a mistake with normalized frequency)
ihave written a MATLAB code for a hilbert transformer :
first a half band filter is generated by sampling from raised cosine function in frequency domain and taking inverse fourie transformer,
the hilbert transform is computed by subtracting .5 from transfer function and modulating the signal by e^jnpi/2 in the time domain and added with half of the real signal, but the result is so noisy compared with matlab analytic filter,why?
(i may made a mistake with normalized frequency)