GB600117A - Improvements in and relating to radio navigation - Google Patents

Improvements in and relating to radio navigation

Info

Publication number
GB600117A
GB600117A GB27244/45A GB2724445A GB600117A GB 600117 A GB600117 A GB 600117A GB 27244/45 A GB27244/45 A GB 27244/45A GB 2724445 A GB2724445 A GB 2724445A GB 600117 A GB600117 A GB 600117A
Authority
GB
United Kingdom
Prior art keywords
line
pulses
course
oct
displayed
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
GB27244/45A
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
Publication of GB600117A publication Critical patent/GB600117A/en
Expired 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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
    • 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

Landscapes

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

Abstract

600,117. Radio navigation. FRANCE, H. G. DE. Oct. 17, 1945, No. 27244. Convention date, Oct. 27, 1939. [Class 40 (vii)] A course line is defined by two radio transmitters which are spaced equally from the course-line on a line perpendicular thereto, and which transmit synchronized pulse signals on different radio frequencies. A receiving system on a craft following the course line is adapted to indicate the time delay between the receipt of pulses, this time delay being zero when the course line is being followed. The receiving system comprises either two receivers or a single receiver with a double input, the received signals being displayed on a cathode-ray tube. Instead of employing rectangular pulses for both transmissions, one may have a saw-tooth form as indicated in Fig. 3, whereby the reading of coincidence is simplified. Fig. 4 shows a further alternative form in which the separate pulses are displayed on separate traces produced by switching.
GB27244/45A 1939-10-27 1945-10-17 Improvements in and relating to radio navigation Expired GB600117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971335T 1939-10-27

Publications (1)

Publication Number Publication Date
GB600117A true GB600117A (en) 1948-03-31

Family

ID=9512606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27244/45A Expired GB600117A (en) 1939-10-27 1945-10-17 Improvements in and relating to radio navigation

Country Status (2)

Country Link
FR (1) FR971335A (en)
GB (1) GB600117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913719A (en) * 1954-04-09 1959-11-17 Olive S Petty Radiolocation method and apparatus
US9969576B1 (en) 2017-02-22 2018-05-15 Rite-Hite Holding Corporation Inflatable weather barriers for loading docks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913719A (en) * 1954-04-09 1959-11-17 Olive S Petty Radiolocation method and apparatus
US9969576B1 (en) 2017-02-22 2018-05-15 Rite-Hite Holding Corporation Inflatable weather barriers for loading docks

Also Published As

Publication number Publication date
FR971335A (en) 1951-01-16

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