GB2016760A - Improvements in or Relating to Correlators - Google Patents

Improvements in or Relating to Correlators

Info

Publication number
GB2016760A
GB2016760A GB7905291A GB7905291A GB2016760A GB 2016760 A GB2016760 A GB 2016760A GB 7905291 A GB7905291 A GB 7905291A GB 7905291 A GB7905291 A GB 7905291A GB 2016760 A GB2016760 A GB 2016760A
Authority
GB
United Kingdom
Prior art keywords
store
signal
samples
parallel
correlator
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.)
Granted
Application number
GB7905291A
Other versions
GB2016760B (en
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB7905291A priority Critical patent/GB2016760B/en
Publication of GB2016760A publication Critical patent/GB2016760A/en
Application granted granted Critical
Publication of GB2016760B publication Critical patent/GB2016760B/en
Expired 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
    • G06F17/15—Correlation function computation including computation of convolution operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A real time correlator for correlating a first signal with a second signal comprising a sampler (12, 13) operative to sample first and second input signals, a first store 7, 10 operative to store a plurality N of samples of each of the first and second signals, a main re-circulating store 8 into which a number of samples M>N of said first signal are fed from the first store, a parallel correlator arrangement 6 in which N samples from the main store are compared in parallel with N samples of the second signal and an integrator 14 responsive to output signals from the parallel correlator for providing an integrated output signal. <IMAGE>
GB7905291A 1978-02-02 1979-02-14 Correlators Expired GB2016760B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7905291A GB2016760B (en) 1978-02-02 1979-02-14 Correlators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB418078 1978-02-02
GB7905291A GB2016760B (en) 1978-02-02 1979-02-14 Correlators

Publications (2)

Publication Number Publication Date
GB2016760A true GB2016760A (en) 1979-09-26
GB2016760B GB2016760B (en) 1982-02-24

Family

ID=26238945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905291A Expired GB2016760B (en) 1978-02-02 1979-02-14 Correlators

Country Status (1)

Country Link
GB (1) GB2016760B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002830A1 (en) * 1996-07-12 1998-01-22 General Electric Company Low power parallel correlator for measuring correlation between digital signal segments
WO1998059257A1 (en) * 1997-06-24 1998-12-30 Snaptrack, Inc. Highly parallel gps correlator system and method
EP0939906A1 (en) * 1996-07-12 1999-09-08 General Electric Company Gps receiver with efficient signal acquisition
US6208291B1 (en) 1998-05-29 2001-03-27 Snaptrack, Inc. Highly parallel GPS correlator system and method
US6704348B2 (en) 2001-05-18 2004-03-09 Global Locate, Inc. Method and apparatus for computing signal correlation at multiple resolutions
EP1467221A2 (en) * 1996-07-12 2004-10-13 General Electric Company GPS receiver with signal memories and parallel correlators
US6819707B2 (en) 2001-05-18 2004-11-16 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US6891880B2 (en) 2001-05-18 2005-05-10 Global Locate, Inc. Method and apparatus for performing signal correlation
EP1707977A1 (en) * 2005-03-24 2006-10-04 Seiko Epson Corporation Receiving device and signal demodulating method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7995682B2 (en) 2001-05-18 2011-08-09 Broadcom Corporation Method and apparatus for performing signal processing using historical correlation data
US7190712B2 (en) 2001-05-18 2007-03-13 Global Locate, Inc Method and apparatus for performing signal correlation
US7769076B2 (en) 2001-05-18 2010-08-03 Broadcom Corporation Method and apparatus for performing frequency synchronization
US7006556B2 (en) 2001-05-18 2006-02-28 Global Locate, Inc. Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002830A1 (en) * 1996-07-12 1998-01-22 General Electric Company Low power parallel correlator for measuring correlation between digital signal segments
EP0939906A1 (en) * 1996-07-12 1999-09-08 General Electric Company Gps receiver with efficient signal acquisition
EP1467221A2 (en) * 1996-07-12 2004-10-13 General Electric Company GPS receiver with signal memories and parallel correlators
EP1467221A3 (en) * 1996-07-12 2005-01-26 General Electric Company GPS receiver with signal memories and parallel correlators
US6289041B1 (en) 1997-02-11 2001-09-11 Snaptrack, Inc. Fast Acquisition, high sensitivity GPS receiver
WO1998059257A1 (en) * 1997-06-24 1998-12-30 Snaptrack, Inc. Highly parallel gps correlator system and method
US6208291B1 (en) 1998-05-29 2001-03-27 Snaptrack, Inc. Highly parallel GPS correlator system and method
US6704348B2 (en) 2001-05-18 2004-03-09 Global Locate, Inc. Method and apparatus for computing signal correlation at multiple resolutions
US6819707B2 (en) 2001-05-18 2004-11-16 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US6891880B2 (en) 2001-05-18 2005-05-10 Global Locate, Inc. Method and apparatus for performing signal correlation
EP1707977A1 (en) * 2005-03-24 2006-10-04 Seiko Epson Corporation Receiving device and signal demodulating method

Also Published As

Publication number Publication date
GB2016760B (en) 1982-02-24

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930214