CHAPTER 18 FOURIER TRANSFORM

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CHAPTER 18 FOURIER TRANSFORM
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Fourier Transform and Inverse-Fourier Transform

• Fourier transform
• ????????????????????????? ???????????????????????
• Inverse-Fourier transform

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??????????????? Fourier Transform

• ????????????? Fourier transform
  ?????????????????????????? (periodic signal)
  ????????????????? (non-periodic signal)
• ????????????????????????????(????????????)
  ????????????? Fourier transform ??? ????

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Circuit Applications

• ???????????? Fourier series ??????????????
  Fourier transform ?????????????????????? output
  ??????? ?????????? input ??? transfer function
  ???????????? (???????????????????????)
• ??????????????????? Fourier transform
  ???????????????????????? Fourier series
  ???????????????????????????????????????????????
• ???????????????????????????????????????????
  (?????????????????????????????????????????????????
  ?????! ??????????????? diode ???)

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• ???????????????????????? Fourier transform
  ??????????? ????????????? transfer function
  ??????? ???????????????????? ????
• ??????? 1 ????????????????
• ????? ??? impulse response ???????
• ??????? 2 ?????

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• ??????? 3 ???????????????????????? ????????????
• ?? impedance ??? component ???????? ??????
• ???????????
• ??? input ??? output ?????????? ???
  ??? ???????? ?????????
  ?????????????????? input ??? output
  ???????????????????????????? ?????????????????????
  ??????????

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• ????????????????????? output ?????????? input
  ????? ???
• ????? ??? Fourier transform ?????????
  input ????????????????????
• ??????????????? Example 18.7 ???? 834 Example
  18.8 ???? 835 ??????