JPH0214074U - - Google Patents

Info

Publication number
JPH0214074U
JPH0214074U JP9316488U JP9316488U JPH0214074U JP H0214074 U JPH0214074 U JP H0214074U JP 9316488 U JP9316488 U JP 9316488U JP 9316488 U JP9316488 U JP 9316488U JP H0214074 U JPH0214074 U JP H0214074U
Authority
JP
Japan
Prior art keywords
amplitude
complex quantity
section
computes
calculation unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9316488U
Other languages
English (en)
Other versions
JPH0725717Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9316488U priority Critical patent/JPH0725717Y2/ja
Publication of JPH0214074U publication Critical patent/JPH0214074U/ja
Application granted granted Critical
Publication of JPH0725717Y2 publication Critical patent/JPH0725717Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Complex Calculations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Description

【図面の簡単な説明】
第1図は本考案に係るFFTアナライザの一実
施例を示すブロツク図、第2図はその振幅位相演
算部の構成を示すブロツク図、第3図は従来のF
FTアナライザの構成を示すブロツク図、第4図
はその振幅位相演算部の構成を示すブロツク図で
ある。 1……フーリエ変換部、2……サインテーブル
、5,6……2乗演算部、7……加算部、8……
開平部、9……除算部、11……符号演算部、2
0……振幅位相演算部、21……アークサイン演
算部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 入力信号をフーリエ変換して各周波数成分に対
    応する複素量を求めるフーリエ変換部と、この複
    素量の振幅を求める振幅演算部と、前記複素量の
    虚部とこの振幅との比を求める除算部と、この除
    算部の出力が入力されるアークサイン演算部とを
    有し、このアークサイン演算部により前記複素量
    の位相を求める事を特徴とするFFTアナライザ
JP9316488U 1988-07-14 1988-07-14 Fftアナライザ Expired - Lifetime JPH0725717Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9316488U JPH0725717Y2 (ja) 1988-07-14 1988-07-14 Fftアナライザ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9316488U JPH0725717Y2 (ja) 1988-07-14 1988-07-14 Fftアナライザ

Publications (2)

Publication Number Publication Date
JPH0214074U true JPH0214074U (ja) 1990-01-29
JPH0725717Y2 JPH0725717Y2 (ja) 1995-06-07

Family

ID=31317613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9316488U Expired - Lifetime JPH0725717Y2 (ja) 1988-07-14 1988-07-14 Fftアナライザ

Country Status (1)

Country Link
JP (1) JPH0725717Y2 (ja)

Also Published As

Publication number Publication date
JPH0725717Y2 (ja) 1995-06-07

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