GB2023316A - Improved correlation system - Google Patents

Improved correlation system

Info

Publication number
GB2023316A
GB2023316A GB7919850A GB7919850A GB2023316A GB 2023316 A GB2023316 A GB 2023316A GB 7919850 A GB7919850 A GB 7919850A GB 7919850 A GB7919850 A GB 7919850A GB 2023316 A GB2023316 A GB 2023316A
Authority
GB
United Kingdom
Prior art keywords
time
signals
binary signals
binary
increments
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
GB7919850A
Other versions
GB2023316B (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7919850A priority Critical patent/GB2023316B/en
Publication of GB2023316A publication Critical patent/GB2023316A/en
Application granted granted Critical
Publication of GB2023316B publication Critical patent/GB2023316B/en
Expired legal-status Critical Current

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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

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  • 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)
  • Measuring Volume Flow (AREA)

Abstract

Two binary signals are compared by providing time signals to indicate the respective times at which the binary signals change their state, usually in the form of digital data strings corresponding to numbers of time increments, and the two time signals are cross correlated. For example, if the two binary signals are in the same state between two consecutive digits of the two data strings, a running total of time increments is increased by the numerical difference between the two digits; if the two binary signals are in opposite states, the running total is decremented by the numerical difference. In a particular example the two binary signals are derived from two sensors spaced in the direction of flow of a flowing fluid; one binary signal is time shifted by adding or subtracting a series of numbers of increments; each time shifted signal and the other signal are cross correlated; and the transit time of the flow between the sensors is given by the time shift corresponding to the highest running total. <IMAGE>
GB7919850A 1978-06-16 1979-06-07 Correlation system Expired GB2023316B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7919850A GB2023316B (en) 1978-06-16 1979-06-07 Correlation system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7827145 1978-06-16
GB7919850A GB2023316B (en) 1978-06-16 1979-06-07 Correlation system

Publications (2)

Publication Number Publication Date
GB2023316A true GB2023316A (en) 1979-12-28
GB2023316B GB2023316B (en) 1982-09-22

Family

ID=26267983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7919850A Expired GB2023316B (en) 1978-06-16 1979-06-07 Correlation system

Country Status (1)

Country Link
GB (1) GB2023316B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658634A1 (en) * 1990-02-21 1991-08-23 Onera (Off Nat Aerospatiale) Device for processing logic signals, of the correlator type, and its application
US5550766A (en) * 1994-10-04 1996-08-27 Al-Zamil; Salah A. M. High speed digital polarity correlator
GB2310056A (en) * 1996-02-08 1997-08-13 Nokia Mobile Phones Ltd Correlator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658634A1 (en) * 1990-02-21 1991-08-23 Onera (Off Nat Aerospatiale) Device for processing logic signals, of the correlator type, and its application
US5550766A (en) * 1994-10-04 1996-08-27 Al-Zamil; Salah A. M. High speed digital polarity correlator
GB2310056A (en) * 1996-02-08 1997-08-13 Nokia Mobile Phones Ltd Correlator

Also Published As

Publication number Publication date
GB2023316B (en) 1982-09-22

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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