GB9309415D0 - Navigation system - Google Patents

Navigation system

Info

Publication number
GB9309415D0
GB9309415D0 GB9309415A GB9309415A GB9309415D0 GB 9309415 D0 GB9309415 D0 GB 9309415D0 GB 9309415 A GB9309415 A GB 9309415A GB 9309415 A GB9309415 A GB 9309415A GB 9309415 D0 GB9309415 D0 GB 9309415D0
Authority
GB
United Kingdom
Prior art keywords
navigation system
navigation
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
GB9309415A
Other versions
GB2506090A (en
GB2506090B (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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to GB9309415A priority Critical patent/GB2506090B/en
Publication of GB9309415D0 publication Critical patent/GB9309415D0/en
Anticipated expiration legal-status Critical
Publication of GB2506090A publication Critical patent/GB2506090A/en
Application granted granted Critical
Publication of GB2506090B publication Critical patent/GB2506090B/en
Expired - Lifetime 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
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/024—Means for monitoring or calibrating of beacon transmitters
    • 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
    • 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

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)
GB9309415A 1993-05-06 1993-05-06 Navigation system Expired - Lifetime GB2506090B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9309415A GB2506090B (en) 1993-05-06 1993-05-06 Navigation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9309415A GB2506090B (en) 1993-05-06 1993-05-06 Navigation system

Publications (3)

Publication Number Publication Date
GB9309415D0 true GB9309415D0 (en) 2012-02-01
GB2506090A GB2506090A (en) 2014-03-26
GB2506090B GB2506090B (en) 2014-11-26

Family

ID=45572541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9309415A Expired - Lifetime GB2506090B (en) 1993-05-06 1993-05-06 Navigation system

Country Status (1)

Country Link
GB (1) GB2506090B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0748078B2 (en) * 1989-04-11 1995-05-24 郵政省通信総合研究所長 Distance measurement method by correlation of spread spectrum dual frequency signals
JPH05509391A (en) * 1990-01-30 1993-12-22 ナウチノ―イススレドバテルスキ　インスティテュト　コスミチェスコゴ　プリボロストロエニア Satellite-assisted radio navigation positioning method and its radio navigation system
GB2241623A (en) * 1990-02-28 1991-09-04 Philips Electronic Associated Vehicle location system

Also Published As

Publication number Publication date
GB2506090A (en) 2014-03-26
GB2506090B (en) 2014-11-26

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20130505