GB2189362B - A frequency domain correlation system - Google Patents

A frequency domain correlation system

Info

Publication number
GB2189362B
GB2189362B GB8609225A GB8609225A GB2189362B GB 2189362 B GB2189362 B GB 2189362B GB 8609225 A GB8609225 A GB 8609225A GB 8609225 A GB8609225 A GB 8609225A GB 2189362 B GB2189362 B GB 2189362B
Authority
GB
United Kingdom
Prior art keywords
frequency domain
correlation system
domain correlation
frequency
domain
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 - Fee Related
Application number
GB8609225A
Other versions
GB2189362A (en
GB8609225D0 (en
Inventor
Alfred Brian Edwin Ellis
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB8609225A priority Critical patent/GB2189362B/en
Publication of GB8609225D0 publication Critical patent/GB8609225D0/en
Publication of GB2189362A publication Critical patent/GB2189362A/en
Application granted granted Critical
Publication of GB2189362B publication Critical patent/GB2189362B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/10Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • G01S13/282Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using a frequency modulated carrier wave
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50Systems of measurement based on relative movement of target
    • G01S13/52Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/5242Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi with means for platform motion or scan motion compensation, e.g. airborne MTI
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/89Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9004SAR image acquisition techniques
    • G01S13/9011SAR image acquisition techniques with frequency domain processing of the SAR signals in azimuth
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/15Correlation function computation including computation of convolution operations
    • G06F17/156Correlation function computation including computation of convolution operations using a domain transform, e.g. Fourier transform, polynomial transform, number theoretic transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Computing Systems (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB8609225A 1986-04-16 1986-04-16 A frequency domain correlation system Expired - Fee Related GB2189362B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8609225A GB2189362B (en) 1986-04-16 1986-04-16 A frequency domain correlation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8609225A GB2189362B (en) 1986-04-16 1986-04-16 A frequency domain correlation system

Publications (3)

Publication Number Publication Date
GB8609225D0 GB8609225D0 (en) 1986-10-29
GB2189362A GB2189362A (en) 1987-10-21
GB2189362B true GB2189362B (en) 1990-04-25

Family

ID=10596258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8609225A Expired - Fee Related GB2189362B (en) 1986-04-16 1986-04-16 A frequency domain correlation system

Country Status (1)

Country Link
GB (1) GB2189362B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105807278A (en) * 2016-03-02 2016-07-27 中国科学院电子学研究所 Method for de-chirping synthetic aperture radar (SAR) echo signals

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073234A1 (en) * 2001-03-14 2002-09-19 Ip And Innovation Company Holdings (Proprietary) Limited Presence detection
US20050080576A1 (en) * 2003-10-10 2005-04-14 Dickerson Robert T. Method and system for frequency domain time correlation
FR2949868B1 (en) * 2009-09-04 2012-05-04 Thales Sa METHOD FOR IMPROVING THE LOCATION OF POINTS COMPRISING A RADAR IMAGE OF SAR TYPE.
US10107896B2 (en) * 2016-01-27 2018-10-23 Rohde & Schwarz Gmbh & Co. Kg Measuring device and measuring method for measuring the ambiguity function of radar signals

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GEC Journal of Research Vol 2, No 3, 1984 *
pages 169 to 176, *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105807278A (en) * 2016-03-02 2016-07-27 中国科学院电子学研究所 Method for de-chirping synthetic aperture radar (SAR) echo signals
CN105807278B (en) * 2016-03-02 2018-11-23 中国科学院电子学研究所 A kind of SAR echo signal goes rectangle method

Also Published As

Publication number Publication date
GB2189362A (en) 1987-10-21
GB8609225D0 (en) 1986-10-29

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Legal Events

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