GB1145244A - Improvements in or relating to i.l.s. monitor systems - Google Patents

Improvements in or relating to i.l.s. monitor systems

Info

Publication number
GB1145244A
GB1145244A GB415867A GB415867A GB1145244A GB 1145244 A GB1145244 A GB 1145244A GB 415867 A GB415867 A GB 415867A GB 415867 A GB415867 A GB 415867A GB 1145244 A GB1145244 A GB 1145244A
Authority
GB
United Kingdom
Prior art keywords
aerials
runway
jan
recorded
switch
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
Application number
GB415867A
Inventor
John Benjamin
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.)
MINI OF TECHNOLOGY
Minister of Technology
Original Assignee
MINI OF TECHNOLOGY
Minister of Technology
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 MINI OF TECHNOLOGY, Minister of Technology filed Critical MINI OF TECHNOLOGY
Priority to GB415867A priority Critical patent/GB1145244A/en
Publication of GB1145244A publication Critical patent/GB1145244A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/10—Radiation diagrams of antennas
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/022—Means for monitoring or calibrating
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/024—Means for monitoring or calibrating of beacon transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Traffic Control Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

1,145,244. Monitoring radio navigation systems. MINISTER OF TECHNOLOGY. 12 Jan., 1968 [27 Jan., 1967], No. 4158/67. Heading H4D. A system for monitoring the signals from the localizer transmitter 7 of an I.LS. (instrument landing system) installation includes a series of spaced apart aerials which extend away from the approach end of a runway 1. The aerials 3, 4, 5, 6 may be located along an extension of the runway centre-line 2, where the difference of depth of modulation (D.D.M.) is nominally zero, or, as shown at 3<SP>1</SP>, 4<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP>, along a line where the D.D.M. has a nominally constant value exceeding zero. The aerials are placed at heights which increase with distance from the runway, and their outputs are connected through equalizing pads to a diode or other type of switch which repeatedly samples them in turn (Fig. 2, not shown). The output of the switch is connected through an I.L.S. receiver to a recorder. If the speed of scanning is sufficiently high, average values of D.D.M. are recorded but if it is low, individual values of D.D.M. at the aerials are recorded.
GB415867A 1967-01-27 1967-01-27 Improvements in or relating to i.l.s. monitor systems Expired GB1145244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB415867A GB1145244A (en) 1967-01-27 1967-01-27 Improvements in or relating to i.l.s. monitor systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB415867A GB1145244A (en) 1967-01-27 1967-01-27 Improvements in or relating to i.l.s. monitor systems

Publications (1)

Publication Number Publication Date
GB1145244A true GB1145244A (en) 1969-03-12

Family

ID=9771828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB415867A Expired GB1145244A (en) 1967-01-27 1967-01-27 Improvements in or relating to i.l.s. monitor systems

Country Status (1)

Country Link
GB (1) GB1145244A (en)

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