FR2545629B1 - Dispositif de calcul pour transformation de fourier rapide - Google Patents

Dispositif de calcul pour transformation de fourier rapide

Info

Publication number
FR2545629B1
FR2545629B1 FR8407007A FR8407007A FR2545629B1 FR 2545629 B1 FR2545629 B1 FR 2545629B1 FR 8407007 A FR8407007 A FR 8407007A FR 8407007 A FR8407007 A FR 8407007A FR 2545629 B1 FR2545629 B1 FR 2545629B1
Authority
FR
France
Prior art keywords
fast fourier
calculation device
fourier transformation
transformation
calculation
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.)
Expired - Lifetime
Application number
FR8407007A
Other languages
English (en)
Other versions
FR2545629A1 (fr
Inventor
Yoshiaki Tanaka
Mamoru Inami
Zenju Otsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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
Priority claimed from JP58078823A external-priority patent/JPH0228187B2/ja
Priority claimed from JP58078824A external-priority patent/JPH0228188B2/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of FR2545629A1 publication Critical patent/FR2545629A1/fr
Application granted granted Critical
Publication of FR2545629B1 publication Critical patent/FR2545629B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
FR8407007A 1983-05-04 1984-05-04 Dispositif de calcul pour transformation de fourier rapide Expired - Lifetime FR2545629B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58078823A JPH0228187B2 (ja) 1983-05-04 1983-05-04 Kosokufuuriehenkannoenzansochi
JP58078824A JPH0228188B2 (ja) 1983-05-04 1983-05-04 Kosokufuuriehenkannoenzansochi

Publications (2)

Publication Number Publication Date
FR2545629A1 FR2545629A1 (fr) 1984-11-09
FR2545629B1 true FR2545629B1 (fr) 1991-05-24

Family

ID=26419877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8407007A Expired - Lifetime FR2545629B1 (fr) 1983-05-04 1984-05-04 Dispositif de calcul pour transformation de fourier rapide

Country Status (3)

Country Link
DE (1) DE3416536A1 (fr)
FR (1) FR2545629B1 (fr)
GB (1) GB2140600B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172719B (en) * 1985-03-22 1988-10-05 Stc Plc Digital phase rotation of signals
US5038311A (en) * 1990-08-10 1991-08-06 General Electric Company Pipelined fast fourier transform processor
DE4130451B4 (de) * 1991-09-13 2004-09-16 Diehl Stiftung & Co.Kg Schaltungsstruktur zur Durchführung der schnellen Fourier-Transformation
US5831881A (en) * 1994-12-02 1998-11-03 Sican Gmbh Method and circuit for forward/inverse discrete cosine transform (DCT/IDCT)
DE4442958C2 (de) * 1994-12-02 2001-05-10 Sican Gmbh Verfahren und Schaltungsanordnung zur Durchführung mehrstufiger Butterfly-Operationen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597990B2 (ja) * 1976-10-06 1984-02-22 日本電気株式会社 Ｎ点離散的フ−リエ変換演算装置
GB2006485B (en) * 1977-10-07 1982-02-10 Secr Defence Spectrum analysers
US4275452A (en) * 1979-11-08 1981-06-23 Rockwell International Corporation Simplified fast fourier transform butterfly arithmetic unit

Also Published As

Publication number Publication date
GB2140600A (en) 1984-11-28
FR2545629A1 (fr) 1984-11-09
DE3416536C2 (fr) 1988-10-06
DE3416536A1 (de) 1984-11-08
GB8411261D0 (en) 1984-06-06
GB2140600B (en) 1987-04-23

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