ATE412220T1 - Fft-architektur und -verfahren - Google Patents

Fft-architektur und -verfahren

Info

Publication number
ATE412220T1
ATE412220T1 AT04812920T AT04812920T ATE412220T1 AT E412220 T1 ATE412220 T1 AT E412220T1 AT 04812920 T AT04812920 T AT 04812920T AT 04812920 T AT04812920 T AT 04812920T AT E412220 T1 ATE412220 T1 AT E412220T1
Authority
AT
Austria
Prior art keywords
methods
fft architecture
fft
architecture
Prior art date
Application number
AT04812920T
Other languages
English (en)
Inventor
Raghuraman Krishnamoorthi
Chinnappa K Ganapathy
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE412220T1 publication Critical patent/ATE412220T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H04L27/2647—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)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
AT04812920T 2003-12-05 2004-12-03 Fft-architektur und -verfahren ATE412220T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52719603P 2003-12-05 2003-12-05

Publications (1)

Publication Number Publication Date
ATE412220T1 true ATE412220T1 (de) 2008-11-15

Family

ID=34676710

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04812920T ATE412220T1 (de) 2003-12-05 2004-12-03 Fft-architektur und -verfahren

Country Status (17)

Country Link
US (1) US7702712B2 (de)
EP (1) EP1690196B1 (de)
JP (1) JP2007513431A (de)
KR (1) KR20060096511A (de)
CN (1) CN1914607A (de)
AR (1) AR046869A1 (de)
AT (1) ATE412220T1 (de)
AU (1) AU2004297978A1 (de)
BR (1) BRPI0417222A (de)
CA (1) CA2547488A1 (de)
DE (1) DE602004017351D1 (de)
ES (1) ES2315735T3 (de)
IL (1) IL176050A0 (de)
MX (1) MXPA06006391A (de)
RU (1) RU2006123934A (de)
TW (1) TW200534121A (de)
WO (1) WO2005057423A2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7430575B2 (en) * 2003-12-19 2008-09-30 Fujitsu Limited One-dimensional fourier transform program, method and apparatus
US7720162B2 (en) * 2005-03-10 2010-05-18 Qualcomm Incorporated Partial FFT processing and demodulation for a system with multiple subcarriers
US8229014B2 (en) * 2005-03-11 2012-07-24 Qualcomm Incorporated Fast fourier transform processing in an OFDM system
US8266196B2 (en) * 2005-03-11 2012-09-11 Qualcomm Incorporated Fast Fourier transform twiddle multiplication
KR100762281B1 (ko) * 2005-12-08 2007-10-01 한국전자통신연구원 고속 푸리에 변환 시스템의 메모리 주소 생성 방법 및 그를이용한 트위들 팩터 생성 장치
WO2007066964A1 (en) * 2005-12-08 2007-06-14 Electronics And Telecommunications Research Institute Memory address generating method and twiddle factor generator using the same
US7702713B2 (en) * 2006-03-24 2010-04-20 Debashis Goswami High speed FFT hardware architecture for an OFDM processor
US20070239815A1 (en) * 2006-04-04 2007-10-11 Qualcomm Incorporated Pipeline fft architecture and method
US20070266070A1 (en) * 2006-05-12 2007-11-15 Chung Hua University Split-radix FFT/IFFT processor
US8503545B2 (en) * 2006-08-31 2013-08-06 Advanced Micro Devices, Inc. I/Q imbalance compensation
KR100836624B1 (ko) * 2006-12-08 2008-06-10 한국전자통신연구원 가변 고속 푸리에 변환 장치 및 그 방법
US8738680B2 (en) 2008-03-28 2014-05-27 Qualcomm Incorporated Reuse engine with task list for fast fourier transform and method of using the same
WO2009128033A2 (en) * 2008-04-18 2009-10-22 Nxp B.V. System and method for configurable mixed radix fft architecture for multimode device
CN102209962A (zh) * 2008-09-10 2011-10-05 先进汽车技术有限公司合作研究中心 计算离散傅里叶变换(dft)系数矩阵的方法和设备
CN101478785B (zh) * 2009-01-21 2010-08-04 华为技术有限公司 资源池管理系统及信号处理方法
CN102238348B (zh) * 2010-04-20 2014-02-05 上海华虹集成电路有限责任公司 一种可变数据个数的fft/ifft处理器的基4模块
TWI402695B (zh) * 2010-07-12 2013-07-21 Novatek Microelectronics Corp 分裂基數－２／８快速傅立葉轉換裝置及方法
CN102339272A (zh) * 2010-07-16 2012-02-01 联咏科技股份有限公司 分裂基数-2/8快速傅立叶转换装置及方法
US8819097B2 (en) * 2011-09-09 2014-08-26 Texas Instruments Incorporated Constant geometry split radix FFT
US8825729B1 (en) * 2011-09-19 2014-09-02 Altera Corporation Power and bandwidth efficient FFT for DDR memory
US9275013B2 (en) * 2012-03-16 2016-03-01 Qualcomm Incorporated System and method for analysis and reconstruction of variable pulse-width signals having low sampling rates
KR101335367B1 (ko) * 2012-04-26 2013-12-02 숭실대학교산학협력단 메모리 제어 장치 및 방법
US9275014B2 (en) 2013-03-13 2016-03-01 Qualcomm Incorporated Vector processing engines having programmable data path configurations for providing multi-mode radix-2x butterfly vector processing circuits, and related vector processors, systems, and methods
US9098449B2 (en) 2013-03-15 2015-08-04 Analog Devices, Inc. FFT accelerator
US9311274B2 (en) * 2013-10-17 2016-04-12 Texas Instruments Incorporated Approach for significant improvement of FFT performance in microcontrollers
US20180373676A1 (en) * 2017-03-16 2018-12-27 Jaber Technology Holdings Us Inc. Apparatus and Methods of Providing an Efficient Radix-R Fast Fourier Transform
US10783216B2 (en) 2018-09-24 2020-09-22 Semiconductor Components Industries, Llc Methods and apparatus for in-place fast Fourier transform
CN109558638B (zh) * 2018-10-23 2023-03-24 清华大学 Fft处理器
US11221397B2 (en) 2019-04-05 2022-01-11 Texas Instruments Incorporated Two-dimensional FFT computation
KR20200143030A (ko) 2019-06-14 2020-12-23 한국전자통신연구원 입력 신호의 특정 주파수 성분들을 분석하기 위한 고속 푸리에 변환 장치
CN115859003A (zh) * 2021-09-27 2023-03-28 华为技术有限公司 执行fft的方法、装置及设备
CN118394682B (zh) * 2024-04-19 2025-01-07 深圳大学 一种基于fpga的ofdr快速解调系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189474A (ja) 1983-04-13 1984-10-27 Yokogawa Medical Syst Ltd 高速フ−リエ変換演算装置
JP3749022B2 (ja) * 1997-09-12 2006-02-22 シャープ株式会社 高速フーリエ変換を用いて短い待ち時間でアレイ処理を行う並列システム
US6088714A (en) * 1998-07-27 2000-07-11 Agilent Technologies Mechanism for calculating one-dimensional fast fourier transforms
US6839728B2 (en) * 1998-10-09 2005-01-04 Pts Corporation Efficient complex multiplication and fast fourier transform (FFT) implementation on the manarray architecture
US6609140B1 (en) * 1999-11-30 2003-08-19 Mercury Computer Systems, Inc. Methods and apparatus for fast fourier transforms
KR100481852B1 (ko) * 2002-07-22 2005-04-11 삼성전자주식회사 고속 푸리에 변환 장치

Also Published As

Publication number Publication date
EP1690196A2 (de) 2006-08-16
US7702712B2 (en) 2010-04-20
JP2007513431A (ja) 2007-05-24
ES2315735T3 (es) 2009-04-01
DE602004017351D1 (de) 2008-12-04
BRPI0417222A (pt) 2007-02-21
AU2004297978A1 (en) 2005-06-23
EP1690196B1 (de) 2008-10-22
TW200534121A (en) 2005-10-16
CA2547488A1 (en) 2005-06-23
KR20060096511A (ko) 2006-09-11
MXPA06006391A (es) 2006-08-23
WO2005057423A2 (en) 2005-06-23
WO2005057423A3 (en) 2006-06-01
RU2006123934A (ru) 2008-01-10
IL176050A0 (en) 2006-10-05
AR046869A1 (es) 2005-12-28
CN1914607A (zh) 2007-02-14
US20050182806A1 (en) 2005-08-18

Similar Documents

Publication Publication Date Title
ATE412220T1 (de) Fft-architektur und -verfahren
DE602004003970D1 (de) Audiovorrichtung
DK1618375T3 (da) Hæmostase-analyseindretning og -fremgangsmåde
DK1706767T3 (da) Optokobleranordning
DE602004001304D1 (de) Abgasvorrichtung
DK1508403T3 (da) Fastgörelsesapparat
DE602004004230D1 (de) Klasse-D Verstärker
DE102004032906B8 (de) Kollision-Feststellvorrichtung
ATE313441T1 (de) Auftraggerät
DE602004014025D1 (de) Betätigungsvorrichtung und -verfahren
IS8489A (is) Umritunarstillar og aðferðir þeirra
EE00531U1 (et) Sulgev-reguleeriv seade
SE0303177L (sv) Undersökningsmetod och -anordning
FI20030329L (fi) Jakotukki
DE502004004631D1 (de) Kabelbearbeitungseinrichtung
DE502004005315D1 (de) Kabelbearbeitungseinrichtung
DE502004005012D1 (de) Kabelbearbeitungseinrichtung
FR2866777B3 (fr) Haut-parleur mince
SE0300991L (sv) Anordning
NO20053898D0 (no) Use and proceeding at footballshoes
NO20044068L (no) Rorledning
ATE407281T1 (de) Befestigungsvorrichtung
SE0301596D0 (sv) New methods and use
SE0302569D0 (sv) System och förfarande
FI20031599A0 (fi) Testausjärjestelmä ja -menetelmä

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties