TDS5000B Online Programmer Guide
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MATH<x>:SPECTral:WINdow
Description
This command sets or returns the window function used to multiply the
spectral analyzer input data for the specified math waveform. The Math
waveform is specified by x, which ranges from 1 through 4 for four--
channel instruments or 1 through 2 for two--channel instruments. A
spectral window determines what the filter shape of the spectral analyz-
er will be in the frequency domain. It can be described by a mathemati-
cal function that is multiplied point--by--point times the input data to the
spectral analyzer. This command is equal to selecting Spectral Setup
from the Math menu, and choosing from the Window Type drop --down
list.
Following is a list of arguments that specify the window function used
to multiply the spectral analyzer input data. The windows are listed in
the order of their ability to resolve frequencies (resolution bandwidth).
For additional information about spectral windows, see Selecting a
Spectral Window in the online help for this instrument.
Group
Math
Related Commands
MATH<x>:SPECTral:RESBw
Syntax 1
MATH<x>:SPECTral:WINdow {RECTANGULAR|
HAMMING|HANNING|KAISERBESSEL|BLACKMANHAR-
RIS|FLATTOP2|GAUSSIAN|TEKEXPONENTIAL}
Syntax 2
MATH<x>:SPECTral:WINdow?
Arguments
H RECTANGULAR
This type of window function is equivalent to multiplying all gate
data by one.
H HAMMING
This type of window function is based on a cosine series.
H HANNING
This type of window function is based on a cosine series.
H KAISERBESSEL
This type of window function is based on a cosine series.
H BLACKMANHARRIS
This type of window function is based on a cosine series.
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