National Instruments Car Stereo System 320571-01 用户手册

Applies an exponential window to the input
sequence X.  If Y represents the output
sequence Exponential{X}, the elements of
Y are obtained using the formula:

y

i

  =  x

i

 exp(a * i)

for  i = 0, 1, 2, … , n-1,

a = 

ln |f|
n - 1

 ,

where f is the final value, and

n is the number of elements in X.

You can use the Exponential Window VI to analyze transients.

X is a DSP Handle Cluster that indicates the memory buffer on the DSP board that contains the input
signal array.

Note: The operation is performed in place and the input array X is overwritten by the output

final value defaults to 0.10.

Exponential {X} is a DSP Handle Cluster that is identical to X, but with the results of Exponential {X}
already  stored in the memory buffer on the DSP board.

error in (no error) contains the error information from a previous VI.  If an error occurs, it is passed out
error out and no other calls are made.

error out contains the error information for this call.