Tektronix 11801C - Page 416

  

DĆ20

RMS +
ȍ
n*1
j+m
[W(j ) 1)
2
) W(j)
2
]
1ń2
[2(n * m)]
1ń2
*%
m
 !+ " '. "&' &(% !' -"! & #
n
 !+ " %'. "&' &(% !' -"! & #
W(j)
 & # ' #"!'
 &( '"! +'!& ")% ' !'%) " '  "%%&#"!! '" "!
#%" *! ' !'%) & &' '" "! #%" "% ' !'% &(% !'
-"! *! ' !'%) & &' '" ' !'% -"!
 
 %$(!, " ! &(% !'& "! # .
 &"  . "! # .
  /
 ! &(% !' -"! "!  !'( *)"% '" ! ' .
&' #
 '% ! ' %&' !' &#'% " #"!!'
 &!  *!"* %'%&'& ! ' (! !' " #"!!'&
S(ȏ)
!
S(ȏ)1)

  !' %$(!, % "! " ' *)"% & '% ! , ('#,.
! ' % "! !( % , (! !' %$(!, ! '! &%!
' *)"% "% ' !%&' &#'% #  !'%#"'"! "%'
& ## ! ! "%% '" #%)!' ' !%& " ' %%"% %' , '
% "! !( %
*%
s +
|Ă s(ȏ)1)Ă |
|Ă s(ȏ)Ă |
 & ' %'" " ' '*" &' #&
D +
icoeff (0) sĂ * icoeff (1)
icoeff (2) sĂ ) 1
 & ' !'%#"'"! )(
*% icoeff(i) & ! %%, " !'%#"'"! "!'& * #! "! '
',# "  *!"*! (!'"! %% '" ' ' "! ' !+' #
fundamentalĂ frequency + (ȏ)D) fresolution
*% fresolution & ' %$(!, %&"('"!