NO934527L - Anordning for avstandsmåling - Google Patents

Anordning for avstandsmåling

Info

Publication number
NO934527L
NO934527L NO934527A NO934527A NO934527L NO 934527 L NO934527 L NO 934527L NO 934527 A NO934527 A NO 934527A NO 934527 A NO934527 A NO 934527A NO 934527 L NO934527 L NO 934527L
Authority
NO
Norway
Prior art keywords
signal
distance measurement
pseudo
random noise
code
Prior art date
Application number
NO934527A
Other languages
English (en)
Inventor
Lyndon Wayne Jubb
Original Assignee
Marconi Gec 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 Marconi Gec Ltd filed Critical Marconi Gec Ltd
Publication of NO934527L publication Critical patent/NO934527L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/325—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. P.S.K. signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

En anordning for avstandsmåling omfatter utstyr for å modulere et utsendt mikrobølgesignal med en første pseudo-tilfeldig støykode (ved 15) og et MF-signal (ved 13). Retursignalene moduleres (ved 18) med en andre pseudo-tilfeldig støykode med mønster identisk med den første kode, men med forskjellig frekvens. Når de to koder sammenfaller genereres en på- visningstopp som ved hjelp av en prosessor (25) sammenlignes med et referansetoppsignal for å gi en tidsforskyvning som representerer den distanse det utsendte signal har vandret. Anordningen er særlig anvendelig ved overvåking av væskenivåer i en tank.
NO934527A 1992-12-10 1993-12-10 Anordning for avstandsmåling NO934527L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929225782A GB9225782D0 (en) 1992-12-10 1992-12-10 Distance measuring arrangement

Publications (1)

Publication Number Publication Date
NO934527L true NO934527L (no) 1994-06-13

Family

ID=10726389

Family Applications (2)

Application Number Title Priority Date Filing Date
NO934527A NO934527L (no) 1992-12-10 1993-12-10 Anordning for avstandsmåling
NO934527D NO934527D0 (no) 1992-12-10 1993-12-10 Anordning for avstandsmaaling

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO934527D NO934527D0 (no) 1992-12-10 1993-12-10 Anordning for avstandsmaaling

Country Status (3)

Country Link
EP (1) EP0601884A3 (no)
GB (2) GB9225782D0 (no)
NO (2) NO934527L (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007187A1 (de) 2000-02-17 2001-08-23 Endress Hauser Gmbh Co Verfahren und Vorrichtung zur Bestimmung des Füllstandes eines Füllguts in einem Behälter
DE10307542A1 (de) * 2002-11-27 2004-06-17 Fibotec Fiberoptics Gmbh Verfahren und Anordnung zur Ermittlung von Verluststellen in optischen Fasern
AT413889B (de) * 2003-05-08 2006-07-15 Kreuzgruber Gmbh Verfahren und einrichtung zur abstandsmessung zwischen zwei sendeempfängern
JP4615904B2 (ja) * 2004-06-14 2011-01-19 富士通株式会社 レーダ装置
EP1777547A1 (en) * 2005-10-24 2007-04-25 Mitsubishi Electric Information Technology Centre Europe B.V. Signal processing and time delay measurement based on combined correlation and differential correlation
US8115672B2 (en) * 2010-02-02 2012-02-14 Thales Method of measuring distance, notably for short-range radar
DE102010027962A1 (de) * 2010-04-20 2011-10-20 Endress + Hauser Gmbh + Co. Kg Füllstandsmessgerät
CN105157789B (zh) * 2015-05-15 2018-03-20 中国科学院沈阳自动化研究所 一种高精度测量的雷达物位计

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2327553A1 (fr) * 1975-10-10 1977-05-06 Thomson Csf Dispositif de mesure par correlation electronique du retard entre deux signaux temporels et systemes comportant un tel dispositif
US4325138A (en) * 1980-09-29 1982-04-13 Sperry Corporation Continuous wave adaptive signal processor system
US4429310A (en) * 1981-04-22 1984-01-31 Sperry Corporation Random binary waveform encoded ranging apparatus
CA2036779A1 (en) * 1990-02-26 1991-08-27 Akio Nagamune In-furnace level meter and antenna therefor
CA2038825A1 (en) * 1990-03-30 1991-10-01 Akio Nagamune In-furnace slag level measuring apparatus
CA2038818A1 (en) * 1990-03-30 1991-10-01 Akio Nagamune Distance measuring method and apparatus therefor

Also Published As

Publication number Publication date
EP0601884A2 (en) 1994-06-15
NO934527D0 (no) 1993-12-10
EP0601884A3 (en) 1994-12-14
GB9325327D0 (en) 1994-02-16
GB2273409A (en) 1994-06-15
GB9225782D0 (en) 1993-02-03

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