# Window Properties (By Coef) (G Dataflow)

Version:

Computes the coherent gain and equivalent noise bandwidth of a window according to the window coefficients.

## window coefficients

Window coefficients for computing the coherent gain and equivalent noise bandwidth.

## error in

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

Default: No error

## eq noise bw

Equivalent noise bandwidth of the window defined by the window coefficients.

## coherent gain

Coherent gain of the window defined by the window coefficients.

## error out

Error information. The node produces this output according to standard error behavior.

## Algorithm for Window Properties

The following equations define the coherent gain (CG) and equivalent noise bandwidth (ENBW) of a given window:

$CG=\frac{\underset{i=0}{\overset{n-1}{\sum }}{w}_{i}}{n}$
$ENBW=\frac{n\underset{i=0}{\overset{n-1}{\sum }}{w}_{i}^{2}}{{\left(\underset{i=0}{\overset{n-1}{\sum }}{w}_{i}\right)}^{2}}$

where wi are the window coefficients and n is the number of coefficients.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported