DE3669080D1 - Rechnereinrichtung von einer sich verschiebenden, nichtrekursiven, diskreten fourier-transformation und ihr gebrauch in einem radarsystem. - Google Patents

Rechnereinrichtung von einer sich verschiebenden, nichtrekursiven, diskreten fourier-transformation und ihr gebrauch in einem radarsystem.

Info

Publication number
DE3669080D1
DE3669080D1 DE8686402032T DE3669080T DE3669080D1 DE 3669080 D1 DE3669080 D1 DE 3669080D1 DE 8686402032 T DE8686402032 T DE 8686402032T DE 3669080 T DE3669080 T DE 3669080T DE 3669080 D1 DE3669080 D1 DE 3669080D1
Authority
DE
Germany
Prior art keywords
recursive
shifting
computer device
radar system
discrete fourier
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 - Fee Related
Application number
DE8686402032T
Other languages
English (en)
Inventor
Philippe Thomson-Csf Elleaume
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 by Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3669080D1 publication Critical patent/DE3669080D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • G01S13/284—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Discrete Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Complex Calculations (AREA)
DE8686402032T 1985-09-24 1986-09-17 Rechnereinrichtung von einer sich verschiebenden, nichtrekursiven, diskreten fourier-transformation und ihr gebrauch in einem radarsystem. Expired - Fee Related DE3669080D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8514136A FR2587819B1 (fr) 1985-09-24 1985-09-24 Dispositif de calcul d'une transformee de fourier discrete, glissante et non recursive, et son application a un systeme radar

Publications (1)

Publication Number Publication Date
DE3669080D1 true DE3669080D1 (de) 1990-03-29

Family

ID=9323193

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686402032T Expired - Fee Related DE3669080D1 (de) 1985-09-24 1986-09-17 Rechnereinrichtung von einer sich verschiebenden, nichtrekursiven, diskreten fourier-transformation und ihr gebrauch in einem radarsystem.

Country Status (6)

Country Link
US (1) US4929954A (de)
EP (1) EP0219392B1 (de)
JP (1) JPS6273378A (de)
CA (1) CA1256578A (de)
DE (1) DE3669080D1 (de)
FR (1) FR2587819B1 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588680B1 (fr) * 1985-10-16 1989-08-25 Thomson Csf Dispositif de calcul d'une transformee de fourier discrete, et son application a la compression d'impulsion dans un systeme radar
JP2585371B2 (ja) * 1988-05-25 1997-02-26 株式会社日立製作所 フーリエ変換装置
US4972358A (en) * 1989-06-08 1990-11-20 General Electric Company Computation of discrete fourier transform using recursive techniques
US5134406A (en) * 1989-10-13 1992-07-28 Cincinnati Microwave, Inc. Long range police radar warning receiver with multiple array averaging
US5049885A (en) * 1989-10-13 1991-09-17 Cincinnati Microwave, Inc. Long range police radar warning receiver
US5089982A (en) * 1990-05-24 1992-02-18 Grumman Aerospace Corporation Two dimensional fast Fourier transform converter
US5109356A (en) * 1990-05-29 1992-04-28 Environmental Research Institute Of Michigan Apparatus for computation of discrete Fourier transform using array parallel processor
US5282134A (en) * 1991-08-19 1994-01-25 Automotive Systems Laboratory, Inc. Slant transform/signal space crash discriminator
US5305007A (en) * 1993-04-13 1994-04-19 Cincinnati Microwave Corporation Wideband radar detector
FR2709007B1 (fr) * 1993-08-11 1995-09-29 Joanblanq Christophe Dispositif électronique de calcul d'une transformée de Fourier et procédé pour minimiser la taille des chemins de données internes d'un tel dispositif.
US5594655A (en) * 1993-08-20 1997-01-14 Nicolet Instrument Corporation Method and apparatus for frequency triggering in digital oscilloscopes and the like
US5943006A (en) * 1996-10-25 1999-08-24 Patrick E. Crane RF image reconstruction and super resolution using fourier transform techniques
CA2225231C (en) * 1997-12-19 2004-03-02 Rui R. Wang Tone detection using discrete fourier transform techniques
US6839471B1 (en) 1999-04-08 2005-01-04 Vogt Iv Robert Extended discrete fourier transform and parametric image algorithms
US6735610B1 (en) * 1999-04-29 2004-05-11 Walter E. Pelton Apparatus, methods, and computer program products for determining the coefficients of a function with decreased latency
US6658441B1 (en) * 1999-08-02 2003-12-02 Seung Pil Kim Apparatus and method for recursive parallel and pipelined fast fourier transform
US6922712B2 (en) 2000-02-26 2005-07-26 Walter E. Pelton Apparatus, methods, and computer program products for accurately determining the coefficients of a function
US6952710B2 (en) 2000-06-09 2005-10-04 Walter Eugene Pelton Apparatus, methods and computer program products for performing high speed division calculations
WO2001095142A2 (en) * 2000-06-09 2001-12-13 Pelton Walter E Methods for reducing the number of computations in a discrete fourier transform
US20020016807A1 (en) * 2000-06-30 2002-02-07 Katsumi Takaoka Recursive discrete fourier transformation method and recursive inverse discrete fourier transformation method
CN1333618A (zh) * 2000-07-18 2002-01-30 日本胜利株式会社 递归型离散傅立叶变换装置
US7685220B2 (en) * 2005-12-14 2010-03-23 Telefonaktiebolaget L M Ericsson (Publ) Circular fast fourier transform
US8477885B2 (en) 2011-01-21 2013-07-02 Northrop Grumman Systems Corporation Recursive frequency estimation
KR20130070321A (ko) * 2011-12-19 2013-06-27 삼성전자주식회사 이산 푸리에변환 장치 및 방법
US10120069B2 (en) 2014-08-19 2018-11-06 Navico Holding As Multiple ranges for pulse compression radar
US10222454B2 (en) 2014-08-19 2019-03-05 Navico Holding As Combining Reflected Signals
US9739873B2 (en) 2014-08-19 2017-08-22 Navico Holding As Range sidelobe suppression
US10001548B2 (en) 2015-01-23 2018-06-19 Navico Holding As Amplitude envelope correction
US9810772B2 (en) 2015-02-27 2017-11-07 Navico Holding As Radar signal generator
US9952312B2 (en) 2015-07-06 2018-04-24 Navico Holding As Radar interference mitigation
CN105759119B (zh) * 2016-04-05 2018-11-02 苏州大学 Sdft基波正序分量相位同步方法及系统
CN105911350B (zh) * 2016-04-05 2018-11-02 苏州大学 频率自适应递归svft谐波序分量实时检测方法及系统
US10935631B2 (en) 2018-04-24 2021-03-02 Navico Holding As Radar transceiver with a switched local oscillator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023028A (en) * 1974-08-20 1977-05-10 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for computing the discrete Fourier transform recursively
JPS593790B2 (ja) * 1975-06-20 1984-01-26 日本電気株式会社 Ｆｆｔ エンサンシヨリソウチ
FR2352345A1 (fr) * 1976-05-21 1977-12-16 Ibm France Generateur de transformees discretes rapides, et filtre numerique utilisant ledit generateur
DE2732643C3 (de) * 1977-07-19 1981-01-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zur Bildung einer Dopplerfilterbank für die Echosignale bei Puls-Doppler-Radargeräten
US4159528A (en) * 1978-03-22 1979-06-26 Rca Corporation Parallel transfer analyzer for performing the chirp Z transform
US4225937A (en) * 1978-09-18 1980-09-30 Xerox Corporation Method and apparatus for suppression of error accumulation in recursive computation of a discrete Fourier transform
US4231102A (en) * 1978-12-21 1980-10-28 Raytheon Company Cordic FFT processor
US4231103A (en) * 1979-02-12 1980-10-28 The United States Of America As Represented By The Secretary Of The Navy Fast Fourier transform spectral analysis system employing adaptive window
US4393457A (en) * 1981-03-26 1983-07-12 Advanced Micro Devices, Inc. Method and apparatus for sequencing addresses of a fast Fourier transform array
US4384291A (en) * 1981-04-15 1983-05-17 The United States Of America As Represented By The Secretary Of The Navy Efficient low-sidelobe pulse compression
US4591857A (en) * 1983-07-11 1986-05-27 The United States Of America As Represented By The Secretary Of The Air Force Programmable LFM signal processor
FR2584213B1 (fr) * 1985-06-28 1994-03-11 Thomson Csf Dispositif de calcul d'une transformee de fourier discrete, glissante, et son application a un systeme radar.
FR2588680B1 (fr) * 1985-10-16 1989-08-25 Thomson Csf Dispositif de calcul d'une transformee de fourier discrete, et son application a la compression d'impulsion dans un systeme radar

Also Published As

Publication number Publication date
JPS6273378A (ja) 1987-04-04
FR2587819A1 (fr) 1987-03-27
EP0219392B1 (de) 1990-02-21
EP0219392A1 (de) 1987-04-22
US4929954A (en) 1990-05-29
CA1256578A (fr) 1989-06-27
FR2587819B1 (fr) 1989-10-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee