GB2246041B - A radio direction finding system - Google Patents

A radio direction finding system

Info

Publication number: GB2246041B
Authority: GB; United Kingdom
Prior art keywords: direction finding; finding system; radio direction; radio; finding
Prior art date: 1990-07-10
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

GB9015219A

Other versions

GB2246041A (en

GB9015219D0 (en

Inventor

David Murdoch Mackenzie

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.)

Leonardo UK Ltd

Original Assignee

GEC Ferranti Defence Systems Ltd

GEC Marconi Avionics Holdings 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.)

1990-07-10

Filing date

1990-07-10

Publication date

1994-11-09

1990-07-10 Application filed by GEC Ferranti Defence Systems Ltd, GEC Marconi Avionics Holdings Ltd filed Critical GEC Ferranti Defence Systems Ltd

1990-07-10 Priority to GB9015219A priority Critical patent/GB2246041B/en

1990-11-21 Publication of GB9015219D0 publication Critical patent/GB9015219D0/en

1991-07-01 Priority to ZA915077A priority patent/ZA915077B/en

1991-07-06 Priority to CN91104048A priority patent/CN1059967A/en

1991-07-09 Priority to PCT/GB1991/001128 priority patent/WO1992001236A1/en

1991-07-09 Priority to IE239191A priority patent/IE912391A1/en

1991-07-09 Priority to PT98265A priority patent/PT98265A/en

1991-07-09 Priority to AU82003/91A priority patent/AU8200391A/en

1991-07-10 Priority to MX9100152A priority patent/MX9100152A/en

1992-01-15 Publication of GB2246041A publication Critical patent/GB2246041A/en

1994-11-09 Application granted granted Critical

1994-11-09 Publication of GB2246041B publication Critical patent/GB2246041B/en

2010-07-10 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/74—Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
- G01S3/30—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived directly from separate directional systems

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Radar Systems Or Details Thereof (AREA)
Variable-Direction Aerials And Aerial Arrays (AREA)

GB9015219A 1990-07-10 1990-07-10 A radio direction finding system Expired - Fee Related GB2246041B (en)

Priority Applications (8)

Application Number	Priority Date	Filing Date	Title
GB9015219A GB2246041B (en)	1990-07-10	1990-07-10	A radio direction finding system
ZA915077A ZA915077B (en)	1990-07-10	1991-07-01	A radio direction finding system
CN91104048A CN1059967A (en)	1990-07-10	1991-07-06	A kind of radio direction-finding system
IE239191A IE912391A1 (en)	1990-07-10	1991-07-09	A radio direction finding system
PCT/GB1991/001128 WO1992001236A1 (en)	1990-07-10	1991-07-09	A radio direction finding system
PT98265A PT98265A (en)	1990-07-10	1991-07-09	INSTALLATION TO DETERMINE DIRECTION OF RADIO WAVE PROPAGATION
AU82003/91A AU8200391A (en)	1990-07-10	1991-07-09	A radio direction finding system
MX9100152A MX9100152A (en)	1990-07-10	1991-07-10	SYSTEM TO FIND THE ADDRESS OF A RADIO

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB9015219A GB2246041B (en)	1990-07-10	1990-07-10	A radio direction finding system

Publications (3)

Publication Number	Publication Date
GB9015219D0 GB9015219D0 (en)	1990-11-21
GB2246041A GB2246041A (en)	1992-01-15
GB2246041B true GB2246041B (en)	1994-11-09

Family

ID=10678913

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9015219A Expired - Fee Related GB2246041B (en)	1990-07-10	1990-07-10	A radio direction finding system

Country Status (8)

Country	Link
CN (1)	CN1059967A (en)
AU (1)	AU8200391A (en)
GB (1)	GB2246041B (en)
IE (1)	IE912391A1 (en)
MX (1)	MX9100152A (en)
PT (1)	PT98265A (en)
WO (1)	WO1992001236A1 (en)
ZA (1)	ZA915077B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7054739B2 (en) *	2003-05-01	2006-05-30	Honeywell International Inc.	Radio navigation system
CN100593730C (en) *	2006-05-26	2010-03-10	上海大学	Hand held direction finding device with direction finding function and direction finding method
DE112006004181A5 (en) *	2006-10-17	2009-09-24	K+K Messtechnik Gmbh	Navigation device and method for determining orientations
EP2551695A1 (en) *	2011-07-25	2013-01-30	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Concept for determining an orientation of a mobile device
CN115372889A (en) *	2018-06-29	2022-11-22	海丰通航科技有限公司	Method for over-the-air radio monitoring
CN109507638A (en) *	2018-11-30	2019-03-22	南京长峰航天电子科技有限公司	A kind of amplitude-comprised direction-finding method and system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1411027A (en) *	1972-09-21	1975-10-22	Motorola Inc	Object guidance system
DE3512519A1 (en) *	1985-04-06	1986-10-16	Fried. Krupp Gmbh, 4300 Essen	Sampling device
US4679176A (en) *	1983-11-24	1987-07-07	Hitachi, Ltd.	Ultrasonic receiving apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4015262A (en) *	1974-12-30	1977-03-29	Northrop Corporation	Digital filters for obtaining quadrature components of a periodic signal
US4528567A (en) *	1981-08-10	1985-07-09	Argo Systems, Inc.	Radio signal receiving system
EP0087333A1 (en) *	1982-01-29	1983-08-31	AVIATION ELECTRIC Limited	Vehicle heading reference system
DE3522838A1 (en) *	1985-06-26	1987-01-08	Heinrich Pfitzner Ges Fuer Nac	Digital search and reconnaissance receiver (electronic warfare)
AT391561B (en) *	1986-11-20	1990-10-25	Oesterr Forsch Seibersdorf	Search device for finding the direction of transmitters which emit a direction-finding signal

1990
- 1990-07-10 GB GB9015219A patent/GB2246041B/en not_active Expired - Fee Related
1991
- 1991-07-01 ZA ZA915077A patent/ZA915077B/en unknown
- 1991-07-06 CN CN91104048A patent/CN1059967A/en active Pending
- 1991-07-09 IE IE239191A patent/IE912391A1/en unknown
- 1991-07-09 AU AU82003/91A patent/AU8200391A/en not_active Abandoned
- 1991-07-09 PT PT98265A patent/PT98265A/en not_active Application Discontinuation
- 1991-07-09 WO PCT/GB1991/001128 patent/WO1992001236A1/en unknown
- 1991-07-10 MX MX9100152A patent/MX9100152A/en unknown

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1411027A (en) *	1972-09-21	1975-10-22	Motorola Inc	Object guidance system
US4679176A (en) *	1983-11-24	1987-07-07	Hitachi, Ltd.	Ultrasonic receiving apparatus
DE3512519A1 (en) *	1985-04-06	1986-10-16	Fried. Krupp Gmbh, 4300 Essen	Sampling device

Also Published As

Publication number	Publication date
PT98265A (en)	1993-08-31
GB2246041A (en)	1992-01-15
GB9015219D0 (en)	1990-11-21
AU8200391A (en)	1992-02-04
IE912391A1 (en)	1992-01-15
WO1992001236A1 (en)	1992-01-23
ZA915077B (en)	1992-04-29
MX9100152A (en)	1992-02-28
CN1059967A (en)	1992-04-01

Publication	Publication Date	Title
US5043736B1 (en)	1994-09-06	Cellular position location system
GB2272133B (en)	1996-06-12	Radio system
GR3023153T3 (en)	1997-07-30	Locating system
GB9019287D0 (en)	1990-10-17	A navigation aid
GB2245733B (en)	1993-12-15	A receiver for a paging system
ZA936085B (en)	1994-06-10	A WLL radio system
GB2250083B (en)	1994-06-15	A weapons system
ZA871866B (en)	1987-09-03	A directional comparison blocking system
GB2241628B (en)	1994-06-01	A receiver
GB2246041B (en)	1994-11-09	A radio direction finding system
GB2251058B (en)	1994-05-04	A mine system
GB2243041B (en)	1994-02-23	Direction finding system
GB9107298D0 (en)	1991-05-22	A radio receiver
GB9120462D0 (en)	1991-11-06	A location system
GB9213594D0 (en)	1992-08-12	A steam-raising system
EP0448789A3 (en)	1992-06-03	Radio system
GB9014787D0 (en)	1992-04-08	Antenna systems
GB9114424D0 (en)	1991-08-21	Radio receiving system
GB9121231D0 (en)	1991-11-20	A ticketing system
GB2240819B (en)	1993-07-28	De-sludging systems
GB9002363D0 (en)	1990-04-04	T-shaped antenna
GB9017538D0 (en)	1990-09-26	Radio system
GB9104139D0 (en)	1991-04-17	A minelaying system
GB9001743D0 (en)	1990-03-28	Antenna system
GB9120954D0 (en)	1991-11-27	Antenna system

Legal Events

Date	Code	Title	Description
1999-03-03	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19980710