WO2005116686A3 - Method and arrangement for determining the spatial frequency of a signal - Google Patents

Method and arrangement for determining the spatial frequency of a signal Download PDF

Info

Publication number
WO2005116686A3
WO2005116686A3 PCT/NO2005/000059 NO2005000059W WO2005116686A3 WO 2005116686 A3 WO2005116686 A3 WO 2005116686A3 NO 2005000059 W NO2005000059 W NO 2005000059W WO 2005116686 A3 WO2005116686 A3 WO 2005116686A3
Authority
WO
WIPO (PCT)
Prior art keywords
spatial frequency
determining
arrangement
signal
matrix
Prior art date
Application number
PCT/NO2005/000059
Other languages
French (fr)
Other versions
WO2005116686A2 (en
Inventor
Jens Fredrik Hjelmstad
Original Assignee
Ericsson Telefon Ab L M
Jens Fredrik Hjelmstad
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
Priority claimed from PCT/NO2004/000409 external-priority patent/WO2005117278A1/en
Application filed by Ericsson Telefon Ab L M, Jens Fredrik Hjelmstad filed Critical Ericsson Telefon Ab L M
Priority to US11/569,010 priority Critical patent/US7750849B2/en
Publication of WO2005116686A2 publication Critical patent/WO2005116686A2/en
Publication of WO2005116686A3 publication Critical patent/WO2005116686A3/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
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • 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
    • G01S3/78—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 electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

A method and arrangement for finding the direction to an emitter source by determining the spatial frequency of a signal received from the source in a sensor panel and comparing the spatial frequency with the instantaneous frequency. The panel includes a first matrix of sensors and a second matrix of sensors interleaved with the first matrix. The spatial frequency is determined by comparing the signals received by the first and second sensor matrices.
PCT/NO2005/000059 2004-05-28 2005-02-17 Method and arrangement for determining the spatial frequency of a signal WO2005116686A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/569,010 US7750849B2 (en) 2004-05-28 2005-02-17 Method and arrangement for determining the spatial frequency of a signal

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO20042234 2004-05-28
NO20042234 2004-05-28
PCT/NO2004/000409 WO2005117278A1 (en) 2004-05-28 2004-12-30 A digitizer arrangement
NOPCT/NO2004/000409 2004-12-30

Publications (2)

Publication Number Publication Date
WO2005116686A2 WO2005116686A2 (en) 2005-12-08
WO2005116686A3 true WO2005116686A3 (en) 2006-04-06

Family

ID=34962340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2005/000059 WO2005116686A2 (en) 2004-05-28 2005-02-17 Method and arrangement for determining the spatial frequency of a signal

Country Status (1)

Country Link
WO (1) WO2005116686A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104067085A (en) 2011-11-18 2014-09-24 神火公司 Dynamic targeting and training system
CN113255098B (en) * 2021-04-16 2023-02-24 哈尔滨工业大学 Distributed information source space domain parameter estimation method based on finite information rate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633257A (en) * 1983-11-14 1986-12-30 Sanders Associates, Inc. Acquisition system employing circular array
EP0395863A2 (en) * 1989-03-22 1990-11-07 Hughes Aircraft Company Aperture synthesized radiometer using digital beamforming techniques
US5339284A (en) * 1992-07-17 1994-08-16 Frederick Herold & Associates, Inc. Signal processor for elimination of sidelobe responses and generation of error signals
US5497164A (en) * 1993-06-03 1996-03-05 Alcatel N.V. Multilayer radiating structure of variable directivity
US5834709A (en) * 1994-01-26 1998-11-10 Lucent Technologies Inc. Position sensing systems including magnetoresistive elements
WO2003028156A2 (en) * 2001-09-24 2003-04-03 Thales Nederland B.V. Patch fed printed antenna

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633257A (en) * 1983-11-14 1986-12-30 Sanders Associates, Inc. Acquisition system employing circular array
EP0395863A2 (en) * 1989-03-22 1990-11-07 Hughes Aircraft Company Aperture synthesized radiometer using digital beamforming techniques
US5339284A (en) * 1992-07-17 1994-08-16 Frederick Herold & Associates, Inc. Signal processor for elimination of sidelobe responses and generation of error signals
US5497164A (en) * 1993-06-03 1996-03-05 Alcatel N.V. Multilayer radiating structure of variable directivity
US5834709A (en) * 1994-01-26 1998-11-10 Lucent Technologies Inc. Position sensing systems including magnetoresistive elements
WO2003028156A2 (en) * 2001-09-24 2003-04-03 Thales Nederland B.V. Patch fed printed antenna

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YAN LUBIN ET AL: "WIDE-BAND, WIDE-ANGLE MICROSTRIP STACKED-PATCH-ELEMENT PHASED ARRAYS", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE INC. NEW YORK, US, vol. 39, no. 8, 1 August 1991 (1991-08-01), pages 1062 - 1070, XP000230605, ISSN: 0018-926X *

Also Published As

Publication number Publication date
WO2005116686A2 (en) 2005-12-08

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