DK2452205T3 - Fremgangsmåde til filtrering af interferogrammer fået ved SAR-billeder registreret på samme område - Google Patents
Fremgangsmåde til filtrering af interferogrammer fået ved SAR-billeder registreret på samme område Download PDFInfo
- Publication number
- DK2452205T3 DK2452205T3 DK10730163.2T DK10730163T DK2452205T3 DK 2452205 T3 DK2452205 T3 DK 2452205T3 DK 10730163 T DK10730163 T DK 10730163T DK 2452205 T3 DK2452205 T3 DK 2452205T3
- Authority
- DK
- Denmark
- Prior art keywords
- images
- sar
- values
- phase
- pixel
- Prior art date
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Classifications
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- 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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/9021—SAR image post-processing techniques
- G01S13/9023—SAR image post-processing techniques combined with interferometric techniques
-
- 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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/904—SAR modes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10032—Satellite or aerial image; Remote sensing
- G06T2207/10044—Radar image
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Image Processing (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Claims (8)
1. Fremgangsmåde til filtrering af interferogrammer fået fra SAR-billeder, som er registreret på samme område med synthetic aperture radar, omfattende følgende trin: a) tilvejebringelse af en serie af N radarbilleder (A1..AN) ved hjælp af en SAR-sensor på samme område med registreringsgeometrier, som tillader resampling af dataene på et fælles gitter, b) efter resampling på et fælles gitter, udvælgelse af en pixel fra det fælles gitter, c) beregning af kohærensmatricen for den udvalgte pixel, det vil sige estimering af de komplekse kohærensværdier for hvert muligt par tilgængelige billeder, d) maksimering med hensyn til den her ubekendte kildevektor Θ af funktionen:
hvor ^er den operatør, som uddrager den reelle del af et komplekst tal, ynm modulet af elementet (n,m) af kohærensmatricen, k et positivt reelt tal, cpnm fasen af elementet (n,m) af kohærensmatricen, θ„ og 6m elementerne n og m af den ukendte vektor Θ, hvor værdierne for den ukendte faktor estimeres undtagen en additiv konstant, og de således opnåede faseværdier θ„ udgør vektoren for de filtrerede faseværdier.
2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at den additive konstant er fastsat ved Ør= 0.
3. Fremgangsmåde ifølge krav 1, kendetegnet ved, at hvert element af kohærensmatricen evalueres ved hjælp af ligningen:
hvor der med F angives et passende estimeringsvindue omkring den valgte pixel, med x(p) det p-te element af estimeringsvinduet F, med n og m det n-te og m-te billede tilhørende sættet af N SAR-billeder, som er resamplet på det fælles gitter.
4. Fremgangsmåde ifølge krav 1, kendetegnet ved, at kildevektorens θ N elementer er forbundet med en polynomiumsrelation med følgende form:
hvor tn er registreringstiden for det n-te billede med hensyn til den første registrering, Bn er den normale basislinie for det n-te billede, stadig med hensyn til den første registrering, hvor funktionen maksimeres med hensyn til koefficienterne af polynomiet g.
5. Fremgangsmåde ifølge krav 1, kendetegnet ved, at kildevektorens θ N elementer er forbundet med en lineær relation med følgende form:
hvor Cv og Ch er kendte parametre afhængige af registreringsgeometrien og af den anvendte sensor, tn er registreringstiden for det n-te billede med hensyn til den første registrering, Bn er den normale basislinie for det n-te billede, stadig med hensyn til den første registrering i optimeringsprocessen, hvor også tn og Bn er kendt, hvor kun værdierne v og h estimeres, knyttet henholdsvis til gennemsnitlig forskydningshastighed og til højdeangivelsen af det objekt, som optager den udvalgte pixel.
6. Fremgangsmåde ifølge krav 1, kendetegnet ved, at de N billeder tilvejebragt ved hjælp af SAR registreres på forskellige tider.
7. Fremgangsmåde ifølge krav 1, kendetegnet ved, at de N billeder tilvejebragt ved hjælp af SAR registreres med forskellige synsvinkler.
8. Computer omfattende en hukommelse og en mikroprocessor indrettet til at udveksle data med hukommelsen, hvilken hukommelse omfatter en applikationssoftware, som er installeret i hukommelsen og kører, hvilken software er egnet til at implementere fremgangsmåden til filtrering af interferogrammer fået fra SAR-billeder registreret på samme område ifølge ethvert af de foregående krav.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2009A001210A IT1394733B1 (it) | 2009-07-08 | 2009-07-08 | Procedimento per il filtraggio di interferogrammi generati da immagini sar acquisite sulla stessa area. |
PCT/EP2010/059494 WO2011003836A1 (en) | 2009-07-08 | 2010-07-02 | Process for filtering interferograms obtained from sar images acquired on the same area. |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2452205T3 true DK2452205T3 (da) | 2015-06-15 |
Family
ID=41667296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK10730163.2T DK2452205T3 (da) | 2009-07-08 | 2010-07-02 | Fremgangsmåde til filtrering af interferogrammer fået ved SAR-billeder registreret på samme område |
Country Status (17)
Country | Link |
---|---|
US (1) | US8711029B2 (da) |
EP (1) | EP2452205B1 (da) |
JP (1) | JP5932643B2 (da) |
CN (1) | CN102472815B (da) |
AU (1) | AU2010270339B2 (da) |
BR (1) | BR112012000415A2 (da) |
CA (1) | CA2767144C (da) |
CY (1) | CY1116529T1 (da) |
DK (1) | DK2452205T3 (da) |
ES (1) | ES2539586T3 (da) |
HK (1) | HK1171086A1 (da) |
IN (1) | IN2012DN00449A (da) |
IT (1) | IT1394733B1 (da) |
NZ (1) | NZ597707A (da) |
PL (1) | PL2452205T3 (da) |
PT (1) | PT2452205E (da) |
WO (1) | WO2011003836A1 (da) |
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CN103226194A (zh) * | 2013-03-26 | 2013-07-31 | 中国科学院电子学研究所 | 一种基于经验模式分解的InSAR干涉相位滤波方法 |
CN103699784A (zh) * | 2013-12-12 | 2014-04-02 | 中国科学院深圳先进技术研究院 | 一种基于全极化合成孔径雷达数据的聚类方法及系统 |
CN103823219B (zh) * | 2014-03-14 | 2016-03-02 | 中国科学院电子学研究所 | 自适应迭代的非局部干涉合成孔径雷达干涉相位滤波方法 |
WO2015192056A1 (en) | 2014-06-13 | 2015-12-17 | Urthecast Corp. | Systems and methods for processing and providing terrestrial and/or space-based earth observation video |
DE112015006123T5 (de) * | 2015-02-06 | 2017-10-26 | Mitsubishi Electric Corporation | Verarbeitungsvorrichtung für Signale eines Radars mit synthetischer Apertur |
US10871561B2 (en) | 2015-03-25 | 2020-12-22 | Urthecast Corp. | Apparatus and methods for synthetic aperture radar with digital beamforming |
WO2017044168A2 (en) | 2015-06-16 | 2017-03-16 | King Abdulaziz City Of Science And Technology | Efficient planar phased array antenna assembly |
CA3044806A1 (en) | 2015-11-25 | 2017-06-01 | Urthecast Corp. | Synthetic aperture radar imaging apparatus and methods |
FR3046298B1 (fr) * | 2015-12-23 | 2018-01-26 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Dispositif optoelectronique d’emission de lumiere |
CN105487065B (zh) * | 2016-01-08 | 2017-06-20 | 香港理工大学深圳研究院 | 一种时序星载雷达数据处理方法和装置 |
EP3646054A4 (en) | 2017-05-23 | 2020-10-28 | King Abdulaziz City for Science and Technology | APERTURE SYNTHESIS RADAR IMAGING APPARATUS FOR MOBILE TARGETS |
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CN110261839B (zh) * | 2019-07-04 | 2023-02-28 | 河海大学 | 一种基于双倍样本的增强谱分集方位向偏移量估计方法 |
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CN111239736B (zh) * | 2020-03-19 | 2022-02-11 | 中南大学 | 基于单基线的地表高程校正方法、装置、设备及存储介质 |
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2009
- 2009-07-08 IT ITMI2009A001210A patent/IT1394733B1/it active
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- 2010-07-02 IN IN449DEN2012 patent/IN2012DN00449A/en unknown
- 2010-07-02 AU AU2010270339A patent/AU2010270339B2/en active Active
- 2010-07-02 EP EP10730163.2A patent/EP2452205B1/en active Active
- 2010-07-02 PT PT107301632T patent/PT2452205E/pt unknown
- 2010-07-02 WO PCT/EP2010/059494 patent/WO2011003836A1/en active Application Filing
- 2010-07-02 CA CA2767144A patent/CA2767144C/en active Active
- 2010-07-02 DK DK10730163.2T patent/DK2452205T3/da active
- 2010-07-02 CN CN201080031221.5A patent/CN102472815B/zh active Active
- 2010-07-02 NZ NZ597707A patent/NZ597707A/xx unknown
- 2010-07-02 BR BR112012000415A patent/BR112012000415A2/pt not_active Application Discontinuation
- 2010-07-02 PL PL10730163T patent/PL2452205T3/pl unknown
- 2010-07-02 ES ES10730163.2T patent/ES2539586T3/es active Active
- 2010-07-02 JP JP2012518927A patent/JP5932643B2/ja active Active
- 2010-07-02 US US13/259,295 patent/US8711029B2/en active Active
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- 2012-11-19 HK HK12111786.1A patent/HK1171086A1/xx unknown
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Also Published As
Publication number | Publication date |
---|---|
ITMI20091210A1 (it) | 2011-01-09 |
AU2010270339B2 (en) | 2016-04-14 |
IN2012DN00449A (da) | 2015-05-15 |
EP2452205B1 (en) | 2015-03-25 |
CA2767144C (en) | 2017-08-08 |
NZ597707A (en) | 2013-11-29 |
AU2010270339A1 (en) | 2012-02-02 |
EP2452205A1 (en) | 2012-05-16 |
US8711029B2 (en) | 2014-04-29 |
WO2011003836A1 (en) | 2011-01-13 |
BR112012000415A2 (pt) | 2017-06-13 |
CA2767144A1 (en) | 2011-01-13 |
PT2452205E (pt) | 2015-07-30 |
JP2012533051A (ja) | 2012-12-20 |
IT1394733B1 (it) | 2012-07-13 |
CN102472815B (zh) | 2014-04-23 |
ES2539586T3 (es) | 2015-07-02 |
CN102472815A (zh) | 2012-05-23 |
PL2452205T3 (pl) | 2015-10-30 |
JP5932643B2 (ja) | 2016-06-08 |
CY1116529T1 (el) | 2017-03-15 |
HK1171086A1 (en) | 2013-03-15 |
US20120019410A1 (en) | 2012-01-26 |
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