KR101006080B1 - 합성개구레이더를 이용한 이동체 속도 측정 방법 - Google Patents
합성개구레이더를 이용한 이동체 속도 측정 방법 Download PDFInfo
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- KR101006080B1 KR101006080B1 KR1020090026106A KR20090026106A KR101006080B1 KR 101006080 B1 KR101006080 B1 KR 101006080B1 KR 1020090026106 A KR1020090026106 A KR 1020090026106A KR 20090026106 A KR20090026106 A KR 20090026106A KR 101006080 B1 KR101006080 B1 KR 101006080B1
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005259 measurement Methods 0.000 title description 2
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
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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
- G01S13/02—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
- G01S13/53—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 performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
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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
- G01S13/02—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
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (6)
- 비행체에 탑재된 합성개구레이더를 이용하여 이동체의 속도를 측정하는 방법에 있어서,상기 합성개구레이더로 이동체가 위치한 구역을 탐지하는 제 1 단계;상기 합성개구레이더에 의해 탐지된 데이터를 수신하는 제 2 단계;상기 합성개구레이더로부터 상기 이동체로의 시선 방향으로 상기 데이터를 압축하는 제 3 단계;상기 데이터의 도플러 위상 성분을 이용하여 상기 이동체의 시선 방향의 속도를 계산하는 제 4 단계;상기 이동체의 이동 방향으로 상기 데이터를 압축하고, 상기 데이터를 화상 이미지로 변환하는 제 5 단계;상기 화상 이미지를 이용하여 이동체의 위치와 침로의 방위각을 확인하는 제 6 단계; 및상기 제 6 단계에서 도출된 이동체의 침로의 방위각과 상기 제 4 단계에서 계산된 이동체의 시선 방향으로의 속도를 이용하여 상기 이동체의 실제 속도 벡터를 계산하는 제 7 단계;를 포함하고,상기 제 4 단계는,상기 화상 이미지에서 도플러 위상 성분을 추출하는 제 4-1 단계;상기 도플러 위상 성분에서 이동체의 이동에 대한 도플러 위상 성분을 제외한 오차 성분을 제거하는 제 4-2 단계; 및상기 이동체의 시선 방향으로의 속도를 계산하는 제 4-3 단계;를 포함하는 것을 특징으로 하는 합성개구레이더를 이용한 이동체 속도 측정 방법.
- 제 1 항에 있어서,상기 비행체는 인공위성 또는 항공기인 것을 특징으로 하는 합성개구레이더를 이용한 이동체 속도 측정 방법.
- 제 1 항에 있어서,상기 이동체는 선박인 것을 특징으로 하는 합성개구레이더를 이용한 이동체 속도 측정 방법.
- 제 1 항에 있어서,상기 제 6 단계에서 침로의 방위각의 확인은 화상 이미지의 픽셀을 이루는 신호의 강도, 또는 픽셀의 분포 정보를 통해 얻어지는 것을 특징으로 하는 합성개구레이더를 이용한 이동체 속도 측정 방법.
- 제 1 항에 있어서,상기 제 4-2 단계의 오차 성분은 상기 비행체의 이동에 따른 선형 도플러 위상 성분을 포함하는 것을 특징으로 하는 합성개구레이더를 이용한 이동체 속도 측정 방법.
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KR1020090026106A KR101006080B1 (ko) | 2009-03-26 | 2009-03-26 | 합성개구레이더를 이용한 이동체 속도 측정 방법 |
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KR1020090026106A KR101006080B1 (ko) | 2009-03-26 | 2009-03-26 | 합성개구레이더를 이용한 이동체 속도 측정 방법 |
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KR20100107828A KR20100107828A (ko) | 2010-10-06 |
KR101006080B1 true KR101006080B1 (ko) | 2011-01-06 |
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KR101314159B1 (ko) * | 2012-11-08 | 2013-10-04 | 주식회사 유니텍 | 플롯 추출, 트래킹 시스템 및 방법 |
CN113091598B (zh) * | 2021-04-06 | 2022-02-08 | 中国矿业大学 | 一种InSAR划定采空区建筑场地稳定性等级范围的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845582A (ja) | 1981-09-11 | 1983-03-16 | Nec Corp | 合成開口レ−ダ装置 |
JPH10148674A (ja) | 1996-11-18 | 1998-06-02 | Nec Corp | アロングトラック・インターフェロメトリsar |
JP2001004398A (ja) | 1999-06-25 | 2001-01-12 | Mitsubishi Space Software Kk | 衛星sar画像に基づく移動体の移動情報検出方法 |
US6952178B2 (en) | 2002-06-14 | 2005-10-04 | Eads Deutschland Gmbh | Method of detecting moving objects and estimating their velocity and position in SAR images |
-
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- 2009-03-26 KR KR1020090026106A patent/KR101006080B1/ko active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845582A (ja) | 1981-09-11 | 1983-03-16 | Nec Corp | 合成開口レ−ダ装置 |
JPH10148674A (ja) | 1996-11-18 | 1998-06-02 | Nec Corp | アロングトラック・インターフェロメトリsar |
JP2001004398A (ja) | 1999-06-25 | 2001-01-12 | Mitsubishi Space Software Kk | 衛星sar画像に基づく移動体の移動情報検出方法 |
US6952178B2 (en) | 2002-06-14 | 2005-10-04 | Eads Deutschland Gmbh | Method of detecting moving objects and estimating their velocity and position in SAR images |
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