CA2277969C - Ligne de transmission ouverte - Google Patents

Ligne de transmission ouverte Download PDF

Info

Publication number
CA2277969C
CA2277969C CA002277969A CA2277969A CA2277969C CA 2277969 C CA2277969 C CA 2277969C CA 002277969 A CA002277969 A CA 002277969A CA 2277969 A CA2277969 A CA 2277969A CA 2277969 C CA2277969 C CA 2277969C
Authority
CA
Canada
Prior art keywords
conductor
transmission line
central element
velocity
wires
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.)
Expired - Fee Related
Application number
CA002277969A
Other languages
English (en)
Inventor
Robert Keith Harman
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.)
Auratek Security Inc
Original Assignee
Auratek Security 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 Auratek Security Inc filed Critical Auratek Security Inc
Priority claimed from CA002044246A external-priority patent/CA2044246C/fr
Application granted granted Critical
Publication of CA2277969C publication Critical patent/CA2277969C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
    • G08B13/2497—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field using transmission lines, e.g. cable
    • 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
    • G01S13/003—Bistatic radar systems; Multistatic radar systems

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)
  • Radar Systems Or Details Thereof (AREA)
CA002277969A 1991-02-20 1991-02-20 Ligne de transmission ouverte Expired - Fee Related CA2277969C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002044246A CA2044246C (fr) 1990-02-20 1991-02-20 Systemes de localisation de mobiles, a ligne de transmission ouverte

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002044246A Division CA2044246C (fr) 1990-02-20 1991-02-20 Systemes de localisation de mobiles, a ligne de transmission ouverte

Publications (1)

Publication Number Publication Date
CA2277969C true CA2277969C (fr) 2000-09-19

Family

ID=30774229

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002277969A Expired - Fee Related CA2277969C (fr) 1991-02-20 1991-02-20 Ligne de transmission ouverte

Country Status (1)

Country Link
CA (1) CA2277969C (fr)

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