flat_top_window – SPECTRUM

type, public, extends(window) :: flat_top_window

Defines a flat-top window.

$w(j) = 0.21557895 - 0.41663158 \cos \left( \frac{2 \pi j}{N} \right) + 0.277263158 \cos \left( \frac{4 \pi j}{N} \right) - 0.083578947 \cos \left( \frac{6 \pi j}{N} \right) + 0.006947368 \cos \left( \frac{8 \pi j}{N} \right)$

Components

Type	Visibility	Attributes		Name		Initial
integer(kind=int32),	public		::	size	=	0	The window size.

Type-Bound Procedures

procedure, public :: evaluate => ftw_eval

private pure function ftw_eval(this, bin) result(rst)

Evaluates the window function.

Arguments

Type	Intent	Optional	Attributes		Name
class(flat_top_window),	intent(in)			::	this	The flat_top_window object.
integer(kind=int32),	intent(in)			::	bin	The index or bin number [0, n], where n is the window size.

Return Value real(kind=real64)

The function value.

flat_top_window Derived Type

Contents

Variables

Type-Bound Procedures

type, public, extends(window) :: flat_top_window

Components

Type-Bound Procedures

procedure, public :: evaluate => ftw_eval

private pure function ftw_eval(this, bin) result(rst)

Arguments

Return Value real(kind=real64)