Справочник Пользователя для National Instruments Car Stereo System 320571-01
Chapter 2 NI-DSP Analysis VI Reference
NI-DSP SRM for LabVIEW for Windows 2-82 Part 3: NI-DSP Function Reference
DSP Triangular Window
Applies a triangular window to the input
sequence X. If Y represents the output
sequence Triangle{X}, the elements of Y are
obtained from the formula:
sequence X. If Y represents the output
sequence Triangle{X}, the elements of Y are
obtained from the formula:
y
i
= x
i
tri(w)
for i = 0, 1, 2, …, n-1 ,
w =
2i-n
n
,
where tri(w) = 1 - |w|, and
n is the number of elements in X.
X is a DSP Handle Cluster that indicates the memory buffer on the DSP board that contains the input
signal array.
signal array.
Note: The operation is performed in place and the input array X is overwritten by the output Triangle
{X}.
Triangle {X} is a DSP Handle Cluster that is identical to X, but with the results of Triangle {X} already
stored in the memory buffer on the DSP board.
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 and no other calls are made.
error out contains the error information for this call.