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Tektronix 11801C User Manual

Tektronix 11801C
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Appendix D: Algorithms
Appendices
DĆ22
TableĂDĆ3:ăValues of wcoeff and m for FFT Windowing Functions
FFT Window wcoeff(0) wcoeff(1) wcoeff(2) wcoeff(3) m
Blackman   
BlackmanĆHarris    
Hamming  
Hanning  
Rectangular 
Triangular 
 $' ) #) '"$# "#)* $"%*) ) '"$# '&*#- #
%%!- ) %'+$*( !$')"
In Peak Search Mode / %%!- )  #)'%$!)$# !$')" # ".
#)* $'')$# )$ ) (%)'! $"%$##) , ( ) #) % $ ) 
"#)* ,+$'"
Total Harmonic Distortion (THD)
 !($ '&*#- $"# (*'"#)( $# % .
 )'"# ) *#"#)! '&*#-
 # ) "#)* $ ) (%)'! % # $ #) +!*(
S(ȏ*1)
S(ȏ)
S(ȏ)1)
# )  "#)* ,+$'"
A
1
+ S(ȏ) )
(S(ȏ*1))
2
) (S(ȏ)1))
2
S(ȏ*1) ) S(ȏ) ) S(ȏ)1)
 # ) '() # '"$# $"%$##)( # )'"# ) )' ()
,+$'" %$#)( # )  "#)* ,+$'"
S(ȏ*1)
S(ȏ)
S(ȏ)1)
$"%*)
A
n
+ S(ȏ) )
S(ȏ*1) ) (S(ȏ)1)
S(ȏ*1) ) S(ȏ) ) S(ȏ)1 )
n + 2,ā.ā.ā.ā, 10
 $"%*) $)! '"$# ()$')$#
THD +
A
2
Ă
2
) A
3
Ă
2
) .... ) A
10
Ă
2
Ǹ
A
1

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Tektronix 11801C Specifications

General IconGeneral
BrandTektronix
Model11801C
CategoryTest Equipment
LanguageEnglish

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