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AR060367A1 - Arquitectura y metodo de entubamiento de transformada rapida de fourier (fft) - Google Patents

Arquitectura y metodo de entubamiento de transformada rapida de fourier (fft)

Info

Publication number
AR060367A1
AR060367A1 ARP070101459A ARP070101459A AR060367A1 AR 060367 A1 AR060367 A1 AR 060367A1 AR P070101459 A ARP070101459 A AR P070101459A AR P070101459 A ARP070101459 A AR P070101459A AR 060367 A1 AR060367 A1 AR 060367A1
Authority
AR
Argentina
Prior art keywords
fast fourier
fft
furting
architecture
entry
Prior art date
Application number
ARP070101459A
Other languages
English (en)
Inventor
Kevin Stuart Cousineau
Raghuraman Krishnamoorthi
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
Publication of AR060367A1 publication Critical patent/AR060367A1/es

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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L27/26522—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators using partial FFTs
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Complex Calculations (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Se describen técnicas para ejecutar transformadas rápidas de Fourier (FFT). En algunos aspectos, calcular la transformada rápida de Fourier se logra con un aparato con una memoria (610), un motor de transformada rápida de Fourier (FET) con uno o mas registradores (650) y un entubado sin demora (630), el (FET) configurado para recibir un ingreso de multiples puntos desde la memoria principal (610), almacenar el ingreso recibido en al menos uno de los uno o mas registradores (650) y calcular uno de o tanto una transformada rápida de Fourier como una transformada rápida inversa de Fourier (IFFT) en el ingreso usando el entubamiento sin demora.
ARP070101459A 2006-04-04 2007-04-04 Arquitectura y metodo de entubamiento de transformada rapida de fourier (fft) AR060367A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78945306P 2006-04-04 2006-04-04

Publications (1)

Publication Number Publication Date
AR060367A1 true AR060367A1 (es) 2008-06-11

Family

ID=38512046

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070101459A AR060367A1 (es) 2006-04-04 2007-04-04 Arquitectura y metodo de entubamiento de transformada rapida de fourier (fft)

Country Status (8)

Country Link
US (1) US20070239815A1 (es)
EP (1) EP2002355A2 (es)
JP (1) JP2009535678A (es)
KR (1) KR20090018042A (es)
CN (1) CN101553808A (es)
AR (1) AR060367A1 (es)
TW (1) TW200805087A (es)
WO (1) WO2007115329A2 (es)

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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
US7861060B1 (en) * 2005-12-15 2010-12-28 Nvidia Corporation Parallel data processing systems and methods using cooperative thread arrays and thread identifier values to determine processing behavior
US7640284B1 (en) 2006-06-15 2009-12-29 Nvidia Corporation Bit reversal methods for a parallel processor
US7836116B1 (en) * 2006-06-15 2010-11-16 Nvidia Corporation Fast fourier transforms and related transforms using cooperative thread arrays
KR20090059315A (ko) * 2007-12-06 2009-06-11 삼성전자주식회사 통신시스템에서 역 고속 퓨리에 변환 방법 및 장치
US20090245092A1 (en) * 2008-03-28 2009-10-01 Qualcomm Incorporated Apparatus, processes, and articles of manufacture for fast fourier transformation and beacon searching
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
US8218426B2 (en) * 2008-03-28 2012-07-10 Qualcomm Incorporated Multiple stage fourier transform apparatus, processes, and articles of manufacture
CN101630308B (zh) * 2008-07-16 2013-04-17 财团法人交大思源基金会 以内存为基础的任意点数快速傅立叶转换器的设计与寻址方法
US20100030831A1 (en) * 2008-08-04 2010-02-04 L-3 Communications Integrated Systems, L.P. Multi-fpga tree-based fft processor
US20100082722A1 (en) * 2008-09-26 2010-04-01 Sinnokrot Mohanned O Methods and Apparatuses for Detection and Estimation with Fast Fourier Transform (FFT) in Orthogonal Frequency Division Multiplexing (OFDM) Communication Systems
DE102010002111A1 (de) 2009-09-29 2011-03-31 Native Instruments Gmbh Verfahren und Anordnung zur Verteilung der Rechenlast in Datenverarbeitungseinrichtungen bei einer Durchführung von blockbasierten Rechenvorschriften sowie ein entsprechendes Computerprogramm und ein entsprechendes computerlesbares Speichermedium
CN102339271A (zh) * 2010-07-15 2012-02-01 中国科学院微电子研究所 一种基8的快速傅立叶变换实现系统及方法
JP5763911B2 (ja) 2010-12-07 2015-08-12 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ ルートｉ（√ｉ）演算の保持を特徴とする基数８固定小数点ＦＦＴ論理回路
CN102611667B (zh) * 2011-01-25 2016-06-15 深圳市中兴微电子技术有限公司 随机接入检测fft/ifft处理方法及装置
US8787762B2 (en) * 2011-02-22 2014-07-22 Nec Laboratories America, Inc. Optical-layer traffic grooming at an OFDM subcarrier level with photodetection conversion of an input optical OFDM to an electrical signal
CN102810086A (zh) * 2011-05-30 2012-12-05 中国科学院微电子研究所 快速傅立叶变换蝶型运算处理装置及数据处理方法
CN104067194B (zh) * 2011-12-22 2017-10-24 英特尔公司 用于计算多轮skein散列算法的执行单元的设备和方法
US10097259B2 (en) 2014-12-31 2018-10-09 Hughes Network Systems, Llc Satellite receiver doppler compensation using resampled satellite signals
US11544214B2 (en) 2015-02-02 2023-01-03 Optimum Semiconductor Technologies, Inc. Monolithic vector processor configured to operate on variable length vectors using a vector length register
US9940303B2 (en) * 2015-07-10 2018-04-10 Tempo Semiconductor, Inc. Method and apparatus for decimation in frequency FFT butterfly
WO2018170400A1 (en) * 2017-03-16 2018-09-20 Jaber Technology Holdings Us Inc. Apparatus and methods of providing an efficient radix-r fast fourier transform
CN109117454B (zh) * 2017-06-23 2022-06-14 扬智科技股份有限公司 3780点快速傅立叶转换处理器及其运作方法
KR20210056277A (ko) 2019-11-08 2021-05-18 한국전기연구원 고속 퓨리에 변환 방법 및 장치
CN113111300B (zh) * 2020-01-13 2022-06-03 上海大学 具有优化资源消耗的定点fft实现系统
CN112328958B (zh) * 2020-11-10 2024-06-21 河海大学 一种基于基-64的二维fft架构的优化数据重排方法
CN114238166B (zh) * 2021-11-23 2024-06-11 西安空间无线电技术研究所 一种基于流水存储结构的子带映射实现方法

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JP3065979B2 (ja) * 1997-01-22 2000-07-17 松下電器産業株式会社 高速フーリエ変換装置および方法、可変ビットリバース回路、逆高速フーリエ変換装置および方法、並びにｏｆｄｍ受信および送信装置
EP1102165A1 (en) * 1999-11-15 2001-05-23 Texas Instruments Incorporated Microprocessor with execution packet spanning two or more fetch packets
US7333422B2 (en) * 2003-09-12 2008-02-19 Zarbana Digital Fund Llc Optimized FFT/IFFT module
CN1320478C (zh) * 2001-08-21 2007-06-06 皇家菲利浦电子有限公司 离散变换运算设备
JP4022546B2 (ja) * 2002-06-27 2007-12-19 サムスン エレクトロニクス カンパニー リミテッド 高速フーリエ変換を用いた混合−基数方式の変調装置
KR100481852B1 (ko) * 2002-07-22 2005-04-11 삼성전자주식회사 고속 푸리에 변환 장치
GB2391966B (en) * 2002-08-15 2005-08-31 Zarlink Semiconductor Ltd A method and system for performing a fast-fourier transform
US7702712B2 (en) * 2003-12-05 2010-04-20 Qualcomm Incorporated FFT architecture and method
US7496618B2 (en) * 2004-11-01 2009-02-24 Metanoia Technologies, Inc. System and method for a fast fourier transform architecture in a multicarrier transceiver
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
TWI298448B (en) * 2005-05-05 2008-07-01 Ind Tech Res Inst Memory-based fast fourier transformer (fft)

Also Published As

Publication number Publication date
JP2009535678A (ja) 2009-10-01
US20070239815A1 (en) 2007-10-11
EP2002355A2 (en) 2008-12-17
TW200805087A (en) 2008-01-16
WO2007115329A3 (en) 2009-06-11
CN101553808A (zh) 2009-10-07
WO2007115329A2 (en) 2007-10-11
KR20090018042A (ko) 2009-02-19

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