DK2989485T3 - Vindturbineundertrykkelse i radarsystemer - Google Patents

Vindturbineundertrykkelse i radarsystemer Download PDF

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Publication number
DK2989485T3
DK2989485T3 DK14718723.1T DK14718723T DK2989485T3 DK 2989485 T3 DK2989485 T3 DK 2989485T3 DK 14718723 T DK14718723 T DK 14718723T DK 2989485 T3 DK2989485 T3 DK 2989485T3
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DK
Denmark
Prior art keywords
data
radar
card
atc
complex
Prior art date
Application number
DK14718723.1T
Other languages
English (en)
Inventor
Derek Geoffrey Finch
Original Assignee
Bae Systems 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
Priority claimed from GB1307381.2A external-priority patent/GB2513356B/en
Priority claimed from EP13275095.1A external-priority patent/EP2796892A1/en
Application filed by Bae Systems Plc filed Critical Bae Systems Plc
Application granted granted Critical
Publication of DK2989485T3 publication Critical patent/DK2989485T3/da

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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
    • 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
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating 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
    • G01S13/5248—Discriminating 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 combining a coherent MTI processor with a zero Doppler processing channel and a clutter mapped memory, e.g. MTD (Moving target detector)
    • 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
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating 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
    • G01S13/5246—Discriminating 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 post processors for coherent MTI discriminators, e.g. residue cancellers, CFAR after Doppler filters
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2886—Coherent receivers using I/Q processing

Claims (10)

1. Fremgangsmåde til drift af en ATC (Air Traffic Control) radar (1), omfattende trinene: - modtagelse af I-fase- (I) og Kvadratur- (Q) signaler, - skabelse af første og andre komplekse glitterkort under anvendelse af I- og Q-signalerne, hvori det første kort omfatter data, som opdateres dynamisk ved hver skanning, og det andet kort omfatter kort, der angiver et statisk miljø uden mål, - fratrækning af data fra det andet kort fra de modtagne I- og Q-signaler for at undertryikke virkningerne af statiske objekter i miljøet for at give kompenserede I- og Q-data, - anvendelse af de kompenserede I- og Q-data til må I registrering og/eller -sporing, kendetegnet ved, at hvis der modtages en refleksion fra et vindturbineblad, som er væsentlig stærkere end andre refleksioner fra samme udsendte burst, så bliver den væsentlig stærkere refleksion enten ignoreret eller dæmpet for at svare til andre refleksioner fra samme udsendte burst.
2. Fremgangsmåde ifølge krav 1, hvori de første og andre komplekse glitterkort hver omfatter en flerhed af celler (100), hvor hver celle svarer til et defineret område, og hvori, hvis data registreret i en bestemt celle i det første kort ændres med mere end en første foruddefineret tærskel mellem en skanning og den næste, før de forbliver i det væsentlige konstant ved et første forudbestemt antal skanninger, så kopieres de i det væsentlige konstante data for den bestemte celle fra det første kort til det andet kort.
3. Fremgangsmåde ifølge krav 1 eller 2, hvori en områdecelle af ATC-radaren er mindre end 60 m.
4. Fremgangsmåde ifølge ethvert foregående krav, hvori interpolation af et modtaget signal udføres for at oprette azimutkoordinaterne i de komplekse glitterkort med den faktiske azimutposition af ATC-radarens antenne.
5. Fremgangsmåde ifølge ethvert foregående krav, yderligere omfattende det trin at beregne CFAR (Constant False Alarm Rate) for en bestemt celle på basis af refleksioner fra tilstødende celler, hvori, hvis mindst en refleksion fra de tilstødende celler overskrider en bestemt tærskel, den mindst ene refleksion ignoreres i CFAR-beregningen.
6. ATC-radar (1) indrettet til at - skabe første og andre komplekse glitterkort under anvendelse af modtagne I- og Q-signaler, hvori det første kort omfatter data, som opdateres dynamisk ved hver skanning, og det andet kort omfatter kort, der angiver et statisk miljø uden mål, - fratrække data fra det andet kort fra de modtagne I- og Q-signaler for at undertrykke virkningerne af statiske objekter i miljøet for at frembringe kompenserede I- og Q-data, - anvende de kompenserede I- og Q-data til målregistrering og/eller -sporing, kendetegnet ved, at hvis der modtages en refleksion fra et vindturbineblad, som er væsentlig stærkere end andre refleksioner fra samme udsendte burst, så er ATC-radaren indrettet til enten at ignorere den væsentlig stærkere refleksion eller dæmpe den for at svare til andre refleksioner fra samme udsendte burst.
7. ATC-radar ifølge krav 6, hvori de første og andre komplekse glitterkort hver omfatter en flerhed af celler (100), hvor hver celle svarer til et defineret område, og hvori, hvis data registreret i en bestemt celle i det første kort ændres med mere end en første foruddefineret tærskel mellem en skanning og den næste, før de forbliver i det væsentlige konstant i et første forudbestemt antal skanninger, så er ATC-radaren indrettet til at kopiere de i det væsentlige konstante data for den bestemte celle fra det første kort til det andet kort.
8. ATC-radar ifølge krav 6 eller 7, indrettet til at anvende en områdecelle, der er mindre end 60 m.
9. ATC-radar ifølge ethvert af krav 6 til 8, hvori ATC-radaren er indrettet til at interpolere et modtaget signal for at oprette azimutkoordinaterne i de komplekse glitterkort med den faktiske azimutposition af ATC-radarens antenne.
10. ATC-radar ifølge ethvert af krav 6 til 9, hvori ATC-radaren er indrettet til at beregne CFAR for en bestemt celle på basis af refleksioner fra tilstødende celler, hvori ATC-radaren, hvis mindst en refleksion fra de tilstødende celler overskrider en bestemt tærskel, er indrettet til at ignorere den mindst ene refleksion.
DK14718723.1T 2013-04-24 2014-04-22 Vindturbineundertrykkelse i radarsystemer DK2989485T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1307381.2A GB2513356B (en) 2013-04-24 2013-04-24 Wind turbine mitigation in radar systems
EP13275095.1A EP2796892A1 (en) 2013-04-24 2013-04-24 Wind turbine mitigation in radar systems
PCT/GB2014/051237 WO2014174267A1 (en) 2013-04-24 2014-04-22 Wind turbine mitigation in radar systems

Publications (1)

Publication Number Publication Date
DK2989485T3 true DK2989485T3 (da) 2017-07-17

Family

ID=50543234

Family Applications (1)

Application Number Title Priority Date Filing Date
DK14718723.1T DK2989485T3 (da) 2013-04-24 2014-04-22 Vindturbineundertrykkelse i radarsystemer

Country Status (6)

Country Link
US (1) US10310067B2 (da)
EP (1) EP2989485B1 (da)
AU (1) AU2014259190B2 (da)
DK (1) DK2989485T3 (da)
ES (1) ES2630393T3 (da)
WO (1) WO2014174267A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10310067B2 (en) 2013-04-24 2019-06-04 Bae Systems Plc Wind turbine mitigation in radar systems
JP2023059019A (ja) * 2021-10-14 2023-04-26 株式会社東芝 クラッター検出装置、気象観測システム、クラッター検出方法、及びプログラム
US20240027577A1 (en) * 2022-07-20 2024-01-25 Applied Concepts, Inc. Adaptive fan noise suppression for traffic radar systems

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US4068231A (en) * 1976-09-02 1978-01-10 Hughes Aircraft Company Automatic clutter-mapper
US5327141A (en) 1986-11-06 1994-07-05 Raytheon Company Clutter removal by polynomial compensation
NL9102125A (nl) 1991-12-19 1993-07-16 Hollandse Signaalapparaten Bv Radarapparaat voorzien van een coherente cluttermap.
JPH11118920A (ja) 1997-10-17 1999-04-30 Japan Radio Co Ltd レーダ目標検出装置
GB9803906D0 (en) * 1998-02-26 1998-04-22 Siemens Plessey Electronic Improvements in or relating to radar systems
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US10310067B2 (en) 2013-04-24 2019-06-04 Bae Systems Plc Wind turbine mitigation in radar systems

Also Published As

Publication number Publication date
US20160069993A1 (en) 2016-03-10
ES2630393T3 (es) 2017-08-21
AU2014259190B2 (en) 2017-05-18
US10310067B2 (en) 2019-06-04
AU2014259190A1 (en) 2015-11-12
WO2014174267A1 (en) 2014-10-30
EP2989485A1 (en) 2016-03-02
EP2989485B1 (en) 2017-05-31

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