spectrum_tf Module

Uses

Variables

Type	Visibility	Attributes		Name		Initial
integer(kind=int32),	public,	parameter	::	SPCTRM_H1_ESTIMATOR	=	50002	A flag for requesting an H1 transfer function estimator. An H1 estimator is best used when noise is uncorrelated with the input, and results in a transfer function estimate of the form $H_{1} = \frac{P_{yx}}{P_{xx}}$ .
integer(kind=int32),	public,	parameter	::	SPCTRM_H2_ESTIMATOR	=	50003	A flag for requesting an H2 transfer function estimator. An H2 estimator is best used when noise is uncorrelated with the output, and results in a transfer function estimate of the form $H_{2} = \frac{P_{yy}}{P_{xy}}$ .

Functions

public function siso_transfer_function(win, x, y, etype, nfft) result(rst)

Estimates the transfer function for a single-input/single-output (SISO) system.

Arguments

Type	Intent	Optional	Attributes		Name
class(window),	intent(in)			::	win	The window object.
real(kind=real64),	intent(in)			::	x(:)	An N-element array containing the input signal.
real(kind=real64),	intent(in)			::	y(:)	An N-element array containing the output signal.
integer(kind=int32),	intent(in),	optional		::	etype	An optional input that, if supplied, denotes the estimator to use. If no value is specified, an H1 estimator is used. The following options are supported. Read more…
integer(kind=int32),	intent(in),	optional		::	nfft	An optional input that can be used to force the length of each individual DFT operation by padding any remaining space with zeros. If not supplied, the window size is used to determine the size of the DFT.

Return Value complex(kind=real64), allocatable, (:)

Returns the complex-valued transfer function estimate.