ATE466342T1 - Faltung von eingabedatenwerten für eine transformation - Google Patents

Faltung von eingabedatenwerten für eine transformation

Info

Publication number
ATE466342T1
ATE466342T1 AT06388052T AT06388052T ATE466342T1 AT E466342 T1 ATE466342 T1 AT E466342T1 AT 06388052 T AT06388052 T AT 06388052T AT 06388052 T AT06388052 T AT 06388052T AT E466342 T1 ATE466342 T1 AT E466342T1
Authority
AT
Austria
Prior art keywords
data values
input data
transform function
folding
transformation
Prior art date
Application number
AT06388052T
Other languages
English (en)
Inventor
Jim Svensson
Leif Wilhelmsson
Thomas Olsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE466342T1 publication Critical patent/ATE466342T1/de

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H04L27/263—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators modification of IFFT/IDFT modulator for performance improvement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Complex Calculations (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
AT06388052T 2006-07-18 2006-07-18 Faltung von eingabedatenwerten für eine transformation ATE466342T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06388052A EP1881415B1 (de) 2006-07-18 2006-07-18 Faltung von Eingabedatenwerten für eine Transformation

Publications (1)

Publication Number Publication Date
ATE466342T1 true ATE466342T1 (de) 2010-05-15

Family

ID=38190886

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06388052T ATE466342T1 (de) 2006-07-18 2006-07-18 Faltung von eingabedatenwerten für eine transformation

Country Status (7)

Country Link
US (1) US20090254598A1 (de)
EP (1) EP1881415B1 (de)
CN (1) CN101490671A (de)
AT (1) ATE466342T1 (de)
DE (1) DE602006013964D1 (de)
TW (1) TW200820018A (de)
WO (1) WO2008009358A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364456A (zh) * 2011-10-18 2012-02-29 广州晶锐信息技术有限公司 64点fft计算器
US20220237259A1 (en) * 2021-01-28 2022-07-28 Stmicroelectronics, Inc. Methods and devices for fast fourier transforms

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746848A (en) * 1971-12-27 1973-07-17 Bell Telephone Labor Inc Fft process and apparatus having equal delay at each stage or iteration
US3892956A (en) * 1971-12-27 1975-07-01 Bell Telephone Labor Inc Cascade digital fast fourier analyzer
US5293330A (en) * 1991-11-08 1994-03-08 Communications Satellite Corporation Pipeline processor for mixed-size FFTs
WO1997019412A1 (en) * 1995-11-17 1997-05-29 Teracom Svensk Rundradio Improvements in or relating to real-time pipeline fast fourier transform processors
KR100186930B1 (ko) * 1996-03-13 1999-05-15 (소장)배문한 직교성 주파수 분할 다중화 방식 신호를 이용한초기프레임동기화방법
AU2001252924A1 (en) * 2000-04-07 2001-10-23 Comsat Corporation Traced fast fourier transform apparatus and method
KR20020034746A (ko) * 2000-11-03 2002-05-09 윤종용 고속 및 면적효율적인 알고리즘을 적용한 고속 프리에변환 프로세서
US7109911B1 (en) * 2002-04-01 2006-09-19 Cataldo Thomas J Dual synthetic aperture radar system
US20050015420A1 (en) * 2003-07-18 2005-01-20 Gibb Sean G. Recoded radix-2 pipeline FFT processor
US7433433B2 (en) * 2003-11-13 2008-10-07 Telefonaktiebolaget L M Ericsson (Publ) Channel estimation by adaptive interpolation
US7415584B2 (en) * 2003-11-26 2008-08-19 Cygnus Communications Canada Co. Interleaving input sequences to memory
US7551545B2 (en) * 2004-02-09 2009-06-23 Qualcomm Incorporated Subband-based demodulation for an OFDM-based communication system
US7685220B2 (en) * 2005-12-14 2010-03-23 Telefonaktiebolaget L M Ericsson (Publ) Circular fast fourier transform
JP2007318585A (ja) * 2006-05-29 2007-12-06 Alps Electric Co Ltd デジタル信号受信装置

Also Published As

Publication number Publication date
EP1881415B1 (de) 2010-04-28
CN101490671A (zh) 2009-07-22
EP1881415A1 (de) 2008-01-23
TW200820018A (en) 2008-05-01
US20090254598A1 (en) 2009-10-08
DE602006013964D1 (de) 2010-06-10
WO2008009358A1 (en) 2008-01-24

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