CA2854620A1 - Detection system with simultaneous multiple transmissions and detection method - Google Patents

Detection system with simultaneous multiple transmissions and detection method Download PDF

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Publication number
CA2854620A1
CA2854620A1 CA2854620A CA2854620A CA2854620A1 CA 2854620 A1 CA2854620 A1 CA 2854620A1 CA 2854620 A CA2854620 A CA 2854620A CA 2854620 A CA2854620 A CA 2854620A CA 2854620 A1 CA2854620 A1 CA 2854620A1
Authority
CA
Canada
Prior art keywords
array
sub
transmission
bursts
detected
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.)
Granted
Application number
CA2854620A
Other languages
French (fr)
Other versions
CA2854620C (en
Inventor
Guy Desodt
Jean-Luc Plante
Jean-Paul Guyvarch
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Publication of CA2854620A1 publication Critical patent/CA2854620A1/en
Application granted granted Critical
Publication of CA2854620C publication Critical patent/CA2854620C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/414—Discriminating targets with respect to background clutter
    • 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
    • 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
    • G01S13/46—Indirect determination of position data
    • G01S13/48—Indirect determination of position data using multiple beams at emission or reception
    • 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
    • G01S13/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The system includes an antenna composed of transmission sub-arrays (A1, ... A Q) illuminating one and the same zone of the space and at least one reception sub-array (A R), each sub-array having a given position in said array, each transmission sub-array transmitting a signal having a specific characteristic, the set of characteristics specific to each sub-array forming the simultaneous multiple transmission code, the detection of targets being performed by the transmission of a series of bursts of multiple transmissions, said series including at least two different transmission codes, echoes being detected in the main lobe and in the sidelobes, the system: - transmits different codes (67) from among at least two bursts, - detects the signals (68) originating from each direction; - carries out the aggregation (69) of the different signals (70) detected in each direction for said at least two bursts, said aggregation reducing the level of the echoes detected by said sidelobes.
CA2854620A 2013-06-21 2014-06-18 Detection system with simultaneous multiple transmissions and detection method Active CA2854620C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1301453A FR3007585B1 (en) 2013-06-21 2013-06-21 SIMULTANEOUS MULTI-EMISSION DETECTION SYSTEM AND DETECTION METHOD
FR1301453 2013-06-21

Publications (2)

Publication Number Publication Date
CA2854620A1 true CA2854620A1 (en) 2014-12-21
CA2854620C CA2854620C (en) 2021-05-25

Family

ID=50064640

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2854620A Active CA2854620C (en) 2013-06-21 2014-06-18 Detection system with simultaneous multiple transmissions and detection method

Country Status (6)

Country Link
EP (1) EP2816369B1 (en)
CA (1) CA2854620C (en)
ES (1) ES2574489T3 (en)
FR (1) FR3007585B1 (en)
IN (1) IN2014DE01619A (en)
PL (1) PL2816369T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3088730B1 (en) 2018-11-15 2022-03-11 Thales Sa Method for creating at least one virtual reception channel by using a radar antenna and radar system
FR3125888B1 (en) 2021-07-30 2023-07-07 Thales Sa METHOD FOR OPTIMIZING THE DETERMINATION OF THE DISTANCE OF A TARGET IN RELATION TO A PHASE ENCODED RADAR IN PULSE MODE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6977610B2 (en) * 2003-10-10 2005-12-20 Raytheon Company Multiple radar combining for increased range, radar sensitivity and angle accuracy
FR2965362B1 (en) * 2010-09-28 2013-08-09 Thales Sa RADAR HAVING HIGH ANGULAR COVERAGE, IN PARTICULAR FOR THE OBSTACLE AVOIDING FUNCTION ON AUTOPILOT AIRCRAFT

Also Published As

Publication number Publication date
PL2816369T3 (en) 2016-10-31
IN2014DE01619A (en) 2015-06-19
EP2816369A1 (en) 2014-12-24
ES2574489T3 (en) 2016-06-20
EP2816369B1 (en) 2016-04-06
FR3007585B1 (en) 2015-06-05
CA2854620C (en) 2021-05-25
FR3007585A1 (en) 2014-12-26

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EEER Examination request

Effective date: 20190528