sinc_filter – SPECTRUM

public pure function sinc_filter(fc, fs, x, fc2, ftype) result(rst)

Applies a sinc-in-time filter (rectangular frequency response).

Type	Intent	Optional	Attributes		Name
real(kind=real64),	intent(in)			::	fc	The filter cutoff frequency, in Hz.
real(kind=real64),	intent(in)			::	fs	The sampling frequency, in Hz.
real(kind=real64),	intent(in),		dimension(:)	::	x	The signal to filter.
real(kind=real64),	intent(in),	optional		::	fc2	The second cutoff frequency for band-pass and band-stop filters.
integer(kind=int32),	intent(in),	optional		::	ftype	The filter type. This parameter must be one of the following values: LOW_PASS_FILTER: Denotes a low-pass filter. HIGH_PASS_FILTER: Denotes a high-pass filter. BAND_PASS_FILTER: Denotes a band-pass filter. BAND_STOP_FILTER: Denotes a band-stop filter. The default value is LOW_PASS_FILTER.

The filtered signal.