WO2004088530A3 - Matched filtering - Google Patents

Matched filtering Download PDF

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Publication number
WO2004088530A3
WO2004088530A3 PCT/GB2004/000954 GB2004000954W WO2004088530A3 WO 2004088530 A3 WO2004088530 A3 WO 2004088530A3 GB 2004000954 W GB2004000954 W GB 2004000954W WO 2004088530 A3 WO2004088530 A3 WO 2004088530A3
Authority
WO
WIPO (PCT)
Prior art keywords
fourier transform
matched filtering
sequence
reference sequence
shorter
Prior art date
Application number
PCT/GB2004/000954
Other languages
French (fr)
Other versions
WO2004088530A2 (en
Inventor
Robert Howard Kirkby
Original Assignee
British Telecomm
Robert Howard Kirkby
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 British Telecomm, Robert Howard Kirkby filed Critical British Telecomm
Priority to CA002519759A priority Critical patent/CA2519759A1/en
Priority to EP04717689A priority patent/EP1625514A2/en
Priority to US10/549,853 priority patent/US7640282B2/en
Publication of WO2004088530A2 publication Critical patent/WO2004088530A2/en
Publication of WO2004088530A3 publication Critical patent/WO2004088530A3/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/15Correlation function computation including computation of convolution operations
    • G06F17/156Correlation function computation including computation of convolution operations using a domain transform, e.g. Fourier transform, polynomial transform, number theoretic transform

Abstract

A signal is filtered by multiplying its Fourier transform by the Fourier transform of a reference sequence to which the filtering is to be matched. The reference sequence (e.g. a Golay sequence pair) is defined as an iterative combination of shorter sequences and its Fourier transform is generated by an iterative process of combining the Fourier transforms of a shorter starting sequence.
PCT/GB2004/000954 2003-03-31 2004-03-05 Matched filtering WO2004088530A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002519759A CA2519759A1 (en) 2003-03-31 2004-03-05 Matched filtering
EP04717689A EP1625514A2 (en) 2003-03-31 2004-03-05 Matched filtering
US10/549,853 US7640282B2 (en) 2003-03-31 2004-03-05 Matched filtering

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0307415.0A GB0307415D0 (en) 2003-03-31 2003-03-31 Matched filtering
GB0307415.0 2003-03-31

Publications (2)

Publication Number Publication Date
WO2004088530A2 WO2004088530A2 (en) 2004-10-14
WO2004088530A3 true WO2004088530A3 (en) 2005-12-15

Family

ID=9955895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/000954 WO2004088530A2 (en) 2003-03-31 2004-03-05 Matched filtering

Country Status (5)

Country Link
US (1) US7640282B2 (en)
EP (1) EP1625514A2 (en)
CA (1) CA2519759A1 (en)
GB (1) GB0307415D0 (en)
WO (1) WO2004088530A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006119179A2 (en) * 2005-05-02 2006-11-09 Knobloch, Charles, Saron Acoustic and magnetostrictive actuation
US8149529B2 (en) * 2010-07-28 2012-04-03 Lsi Corporation Dibit extraction for estimation of channel parameters
US9081053B2 (en) * 2010-11-30 2015-07-14 Texas Instruments Incorporated Using continuous sweep frequencies in a system frequency response test
WO2013125173A1 (en) * 2012-02-20 2013-08-29 日本電気株式会社 Digital filter circuit, digital-filter application method, and storage medium containing digital-filter application program
CN109443590B (en) * 2018-11-01 2020-05-01 哈尔滨工业大学 Phase-sensitive OTDR (optical time Domain reflectometer) measurement method based on frequency-space domain matching and injection locking technology

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379609A1 (en) * 1989-01-24 1990-08-01 Hewlett-Packard GmbH Method and apparatus for performing optical time domain reflectometry
WO2000054424A2 (en) * 1999-03-05 2000-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient synchronization in spread spectrum communications
US6312384B1 (en) * 1998-03-31 2001-11-06 General Electric Company Method and apparatus for flow imaging using golay codes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987285A (en) * 1973-05-04 1976-10-19 Rca Corporation Digital matched filtering using a step transform process
US4025772A (en) * 1974-03-13 1977-05-24 James Nickolas Constant Digital convolver matched filter and correlator
US4532603A (en) * 1983-03-09 1985-07-30 The United States Of America As Represented By The Secretary Of The Army Chirp transform correlator
US4706263A (en) * 1983-11-07 1987-11-10 Hughes Aircraft Company Data communications receiver operable in highly stressed environments
JPH08272473A (en) 1995-03-29 1996-10-18 Olympus Optical Co Ltd Image information retrieval device
US6330292B1 (en) * 1997-11-11 2001-12-11 Telefonaktiebolaget Lm Ericsson Reduced power matched filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379609A1 (en) * 1989-01-24 1990-08-01 Hewlett-Packard GmbH Method and apparatus for performing optical time domain reflectometry
US6312384B1 (en) * 1998-03-31 2001-11-06 General Electric Company Method and apparatus for flow imaging using golay codes
WO2000054424A2 (en) * 1999-03-05 2000-09-14 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient synchronization in spread spectrum communications

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BUDISIN S Z: "EFFICIENT PULSE COMPRESSOR FOR GOLAY COMPLEMENTARY SEQUENCES", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 27, no. 3, January 1991 (1991-01-01), pages 219 - 220, XP000913680, ISSN: 0013-5194 *
GOLAY M J E: "COMPLEMENTARY SERIES", IRE TRANSACTIONS ON INFORMATION THEORY, IEEE INC. NEW YORK, US, vol. 7, April 1961 (1961-04-01), pages 82 - 87, XP000608597 *
POPOVIC B M: "Efficient Golay correlator", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 35, no. 17, 19 August 1999 (1999-08-19), pages 1427 - 1428, XP006012592, ISSN: 0013-5194 *
STOCKHAM T G: "HIGH-SPEED CONVOLUTION AND CORRELATION", AFIPS CONFERENCE PROCEEDINGS, vol. 28, 1966, pages 229 - 233, XP001079087 *

Also Published As

Publication number Publication date
US7640282B2 (en) 2009-12-29
GB0307415D0 (en) 2003-05-07
US20060198471A1 (en) 2006-09-07
EP1625514A2 (en) 2006-02-15
WO2004088530A2 (en) 2004-10-14
CA2519759A1 (en) 2004-10-14

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