National Instruments Car Stereo System 320571-01 用户手册

Applies a Hamming window to the input
sequence X.   If Y represents the output
sequence Hamming {X}, the elements of Y
are obtained from the formula:

yi  =  xi [0.54 - 0.46 cos(w)]

for  i = 0, 1, 2, …, n-1 ,

w  =  

2

π

i

n

 ,

where n is the number of elements in the input sequence X.

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

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

Hamming {X} is a DSP Handle Cluster that is identical to X, but with the results of Hamming {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.