NL186877B - HIGH FREQUENCY DIRECTION SEARCH SYSTEM. - Google Patents

HIGH FREQUENCY DIRECTION SEARCH SYSTEM.

Info

Publication number
NL186877B
NL186877B NLAANVRAGE7907610,A NL7907610A NL186877B NL 186877 B NL186877 B NL 186877B NL 7907610 A NL7907610 A NL 7907610A NL 186877 B NL186877 B NL 186877B
Authority
NL
Netherlands
Prior art keywords
high frequency
search system
frequency direction
direction search
search
Prior art date
Application number
NLAANVRAGE7907610,A
Other languages
Dutch (nl)
Other versions
NL7907610A (en
NL186877C (en
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of NL7907610A publication Critical patent/NL7907610A/en
Publication of NL186877B publication Critical patent/NL186877B/en
Application granted granted Critical
Publication of NL186877C publication Critical patent/NL186877C/en

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
    • 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
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
    • 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
    • G01S5/04—Position of source determined by a plurality of spaced direction-finders

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
NLAANVRAGE7907610,A 1978-10-13 1979-10-15 HIGH FREQUENCY DIRECTION SEARCH SYSTEM. NL186877C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7840504 1978-10-13
GB7840504 1978-10-13

Publications (3)

Publication Number Publication Date
NL7907610A NL7907610A (en) 1981-06-01
NL186877B true NL186877B (en) 1990-10-16
NL186877C NL186877C (en) 1991-03-18

Family

ID=10500320

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7907610,A NL186877C (en) 1978-10-13 1979-10-15 HIGH FREQUENCY DIRECTION SEARCH SYSTEM.

Country Status (5)

Country Link
DE (1) DE2941525A1 (en)
FR (1) FR2476854B1 (en)
GB (1) GB2064257B (en)
IT (1) IT1119386B (en)
NL (1) NL186877C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137051B (en) * 1983-03-22 1986-07-30 Secuurigard International Limi Radio direction finders
GB2140238A (en) * 1983-05-11 1984-11-21 Racal Communications Equip Direction finding
GB2147760B (en) * 1983-10-07 1987-04-15 Racal Res Ltd Direction finding systems
DE3419341A1 (en) * 1984-05-24 1985-11-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt INTERFEROMETER ARRANGEMENT
GB8612753D0 (en) * 1986-05-27 1986-09-17 Tong D A Direction finding equipment
DE19512787A1 (en) * 1995-02-19 1996-09-12 Horn Wolfgang Location detector using synthetic aperture, for locating e.g. microwave interference source
GB2601987B (en) * 1995-04-10 2023-03-15 Dassault Electronique An instantaneous phase meter receiver for an electromagnetic signal in a wide frequency band and signal processing method
US5969676A (en) * 1997-09-30 1999-10-19 Honeywell Inc. Radio frequency interferometer and laser rangefinder/destination base targeting system
DE102005060875A1 (en) * 2005-12-20 2007-06-21 Robert Bosch Gmbh Method and device for signal processing at an angle determination by means of microwave motion sensors
FR2902892B1 (en) * 2006-06-23 2011-04-29 Thales Sa PHASE GONIOMETRY INTERFEROMETRY SYSTEM FOR CAPTURING ELECTROMAGNETIC WAVES AND DEDUCTING THE ARRIVAL DIRECTION THEREOF
EP2209016A1 (en) * 2009-01-20 2010-07-21 Alcatel Lucent Localization method for mobile stations, receiver station and vehicle thereof
US8264409B2 (en) 2009-01-30 2012-09-11 The United States Of America As Represented By The Secretary Of The Navy Electromagnetic radiation source locating system
GB2478960B (en) * 2010-03-25 2012-08-22 Guidance Ip Ltd An apparatus for measuring the relative direction of a radio signal
GB2478961B (en) 2010-03-25 2014-06-18 Guidance Ip Ltd Active target with height diversity

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245079A (en) * 1963-11-12 1966-04-05 Collins Radio Co A. d. f. receiver
DE1248754B (en) * 1965-05-08 1967-08-31 Telefunken Patentverw ertungsgesellschaft mbH, Ulm/Donau Method for determining the inconvenience of N (N> 1) ms special coherent electromagnet! see waves
FR1524050A (en) * 1965-05-08 1968-05-10 Telefunken Patent Multi-wave direction finder
DE1274687B (en) * 1966-12-15 1968-08-08 Telefunken Patent Large base DF antenna system and evaluation and display device for such an antenna system
DE2007048C3 (en) * 1970-02-17 1980-06-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bearing system for finding electrical high-frequency vibrations
DE2038982C3 (en) * 1970-08-05 1980-04-17 Standard Elektrik Lorenz Ag, 7000 Stuttgart Inquiry / answer radio navigation system with on-board range finder and ground interferometer direction finder
DE2133000A1 (en) * 1971-07-02 1973-01-18 Singer Co BROADBAND PHASE MEASUREMENT SYSTEM FOR MICROWAVE PULSES
US3852754A (en) * 1971-09-21 1974-12-03 Litton Systems Inc Binary beam system
US3815135A (en) * 1972-10-26 1974-06-04 Us Air Force Direction finding interferometer for a linear fm signal
DE2358585C3 (en) * 1973-11-24 1979-11-15 Standard Elektrik Lorenz Ag, 7000 Stuttgart Radio direction finder and radio beacon working according to the reciprocity law
GB1434638A (en) * 1973-11-27 1976-05-05 Standard Telephones Cables Ltd Radio direction finding equipment
GB1540418A (en) * 1976-03-15 1979-02-14 Mullard Ltd Resolving angular ambiguity
FR2350612A1 (en) * 1976-05-07 1977-12-02 Trt Telecom Radio Electr SYSTEM FOR LOCATING A TRANSMITTER INTENDED TO PROVIDE ANGULAR DEVIATION INFORMATION
GB1536996A (en) * 1977-03-25 1978-12-29 Philips Electronic Associated Radio interferometer system

Also Published As

Publication number Publication date
IT1119386B (en) 1986-03-10
IT7968982A0 (en) 1979-10-11
DE2941525A1 (en) 1982-08-19
NL7907610A (en) 1981-06-01
GB2064257B (en) 1983-03-09
FR2476854A1 (en) 1981-08-28
DE2941525C2 (en) 1992-04-02
GB2064257A (en) 1981-06-10
FR2476854B1 (en) 1985-10-18
NL186877C (en) 1991-03-18

Similar Documents

Publication Publication Date Title
NO150791C (en) MARINT RISING SYSTEM.
IT7927485A0 (en) SEPARATOR.
NL7902825A (en) IMINOCHINAZOLINES.
NL7805230A (en) EPILER.
NL7903660A (en) IMPROVED COOLING SYSTEM.
NL7902653A (en) BOGIE-SPRING SYSTEM.
IT7919529A0 (en) IRONING SYSTEM.
NL186877C (en) HIGH FREQUENCY DIRECTION SEARCH SYSTEM.
NL180465C (en) TRIM CONDENSER.
NL192551B (en) Antenna system.
NL189732C (en) RADAR SYSTEM.
NO790581L (en) HYDROSYCLONE SEPARATOR.
NO153238C (en) INDUKTANSSPOLESETT.
IT7925647A0 (en) RADAR SYSTEM.
NL7901515A (en) COOLING SYSTEM.
NL7903229A (en) RADAR SYSTEM.
FI841359A (en) PHENYL-KINOLIZIDINER.
NL7812668A (en) LASERGYROSCOPE SYSTEM.
IT7920431A0 (en) CENTRIFUGATION SYSTEM.
NL193128B (en) Tuning unit.
NO142229C (en) PROFILE SYSTEM.
IT7926168A0 (en) REFRIGERATOR.
NL7903794A (en) ANTENNA SYSTEM.
NL7901541A (en) DIRECT-HEATED CATHODY SYSTEM.
IT7921391A0 (en) MECHANICAL DEHYDRATION PROCEDURE.

Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee