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GB2180425B - Navigation system and method - Google Patents

Navigation system and method

Info

Publication number
GB2180425B
GB2180425B GB8522721A GB8522721A GB2180425B GB 2180425 B GB2180425 B GB 2180425B GB 8522721 A GB8522721 A GB 8522721A GB 8522721 A GB8522721 A GB 8522721A GB 2180425 B GB2180425 B GB 2180425B
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.)
Expired
Application number
GB8522721A
Other versions
GB2180425A (en
Inventor
Rolf Johannessen
Francis Giles Overbury
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.)
STC PLC
Original Assignee
STC PLC
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 STC PLC filed Critical STC PLC
Priority to GB8522721A priority Critical patent/GB2180425B/en
Publication of GB2180425A publication Critical patent/GB2180425A/en
Application granted granted Critical
Publication of GB2180425B publication Critical patent/GB2180425B/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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
GB8522721A 1985-09-13 1985-09-13 Navigation system and method Expired GB2180425B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8522721A GB2180425B (en) 1985-09-13 1985-09-13 Navigation system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8522721A GB2180425B (en) 1985-09-13 1985-09-13 Navigation system and method

Publications (2)

Publication Number Publication Date
GB2180425A GB2180425A (en) 1987-03-25
GB2180425B true GB2180425B (en) 1989-11-22

Family

ID=10585143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8522721A Expired GB2180425B (en) 1985-09-13 1985-09-13 Navigation system and method

Country Status (1)

Country Link
GB (1) GB2180425B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8195188B2 (en) 1997-08-04 2012-06-05 Enovsys Llc Location reporting satellite paging system with optional blocking of location reporting
US8462745B2 (en) 2008-06-16 2013-06-11 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution
US8890746B2 (en) 2010-11-03 2014-11-18 Skyhook Wireless, Inc. Method of and system for increasing the reliability and accuracy of location estimation in a hybrid positioning system
US8994591B2 (en) 1996-09-09 2015-03-31 Tracbeam Llc Locating a mobile station and applications therefor
US9060341B2 (en) 1996-09-09 2015-06-16 Tracbeam, Llc System and method for hybriding wireless location techniques
US9134398B2 (en) 1996-09-09 2015-09-15 Tracbeam Llc Wireless location using network centric location estimators
US9538493B2 (en) 2010-08-23 2017-01-03 Finetrak, Llc Locating a mobile station and applications therefor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920010026B1 (en) * 1987-10-23 1992-11-13 휴우즈 에어크라프트 캄파니 Aircraft positioning system with improved accuracy
US5099245A (en) * 1987-10-23 1992-03-24 Hughes Aircraft Company Vehicle location system accuracy enhancement for airborne vehicles
RU2164694C2 (en) * 1999-01-25 2001-03-27 Санкт-Петербургский государственный университет Radio navigation procedure and regional system of its implementation
US10684350B2 (en) 2000-06-02 2020-06-16 Tracbeam Llc Services and applications for a communications network
US10641861B2 (en) 2000-06-02 2020-05-05 Dennis J. Dupray Services and applications for a communications network
US9875492B2 (en) 2001-05-22 2018-01-23 Dennis J. Dupray Real estate transaction system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166617A (en) * 1984-09-28 1986-05-08 Decca Ltd Radio navigation system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166617A (en) * 1984-09-28 1986-05-08 Decca Ltd Radio navigation system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8994591B2 (en) 1996-09-09 2015-03-31 Tracbeam Llc Locating a mobile station and applications therefor
US9060341B2 (en) 1996-09-09 2015-06-16 Tracbeam, Llc System and method for hybriding wireless location techniques
US9134398B2 (en) 1996-09-09 2015-09-15 Tracbeam Llc Wireless location using network centric location estimators
US9237543B2 (en) 1996-09-09 2016-01-12 Tracbeam, Llc Wireless location using signal fingerprinting and other location estimators
US9277525B2 (en) 1996-09-09 2016-03-01 Tracbeam, Llc Wireless location using location estimators
US8195188B2 (en) 1997-08-04 2012-06-05 Enovsys Llc Location reporting satellite paging system with optional blocking of location reporting
US8559942B2 (en) 1997-08-04 2013-10-15 Mundi Fomukong Updating a mobile device's location
US8706078B2 (en) 1997-08-04 2014-04-22 Enovsys Llc Location reporting satellite paging system with privacy feature
US8462745B2 (en) 2008-06-16 2013-06-11 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution
US8638725B2 (en) 2008-06-16 2014-01-28 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution
US9538493B2 (en) 2010-08-23 2017-01-03 Finetrak, Llc Locating a mobile station and applications therefor
US8890746B2 (en) 2010-11-03 2014-11-18 Skyhook Wireless, Inc. Method of and system for increasing the reliability and accuracy of location estimation in a hybrid positioning system

Also Published As

Publication number Publication date
GB2180425A (en) 1987-03-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920913