KR100337368B1 - 광섬유 수신 광학계가 구비된 라이다 시스템을 이용한3차원 풍향 풍속 측정 방법 - Google Patents
광섬유 수신 광학계가 구비된 라이다 시스템을 이용한3차원 풍향 풍속 측정 방법 Download PDFInfo
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- KR100337368B1 KR100337368B1 KR1020000041595A KR20000041595A KR100337368B1 KR 100337368 B1 KR100337368 B1 KR 100337368B1 KR 1020000041595 A KR1020000041595 A KR 1020000041595A KR 20000041595 A KR20000041595 A KR 20000041595A KR 100337368 B1 KR100337368 B1 KR 100337368B1
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- Prior art keywords
- lidar
- signal
- wind direction
- wind speed
- wind
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 26
- 230000003287 optical effect Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 17
- 238000000691 measurement method Methods 0.000 claims abstract description 5
- 238000005314 correlation function Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 abstract 1
- 239000011941 photocatalyst Substances 0.000 abstract 1
- 238000007781 pre-processing Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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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
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/04—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using deflection of baffle-plates
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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
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
- G01S13/951—Radar or analogous systems specially adapted for specific applications for meteorological use ground based
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/08—Adaptations of balloons, missiles, or aircraft for meteorological purposes; Radiosondes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Atmospheric Sciences (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Electromagnetism (AREA)
- Biodiversity & Conservation Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Description
Claims (2)
- 라이다 시스템을 이용한 풍향 풍속 측정방법에 있어서,펄스형 레이저장비(10)에서 광에너지(12)가 발진하는 단계(A)와,상기 발진된 광에너지(12)가 소정각도의 각도를 갖는 제 1,2광분해기(14,16)를 순차적으로 통과하면서 독립된 광원으로 광분해되는 단계(B)와,상기 제 1,2광분해기(14,16)에 의해 독립된 광에너지가 제 1,2광분해기(14,16)와 반사경(18)을 통하여 대기중으로 각각 발사되는 단계(C)와,상기 대기중으로 발사되는 독립된 광원이 대기중에 존재하는 공기분자나 분진(20)에 충돌하여 산란되면서 대구경 망원경(24)에 조사되고, 이와 같이 조사되는 각각의 광원을 대구경 망원경(24)의 초점면에 위치한 제 1,2,3광섬유(26,28,30)가 각각 대응하는 상태로 라이다 신호를 수신하는 단계(D)와,상기 제 1,2,3광섬유(26,28,30)에 입력되는 라이다 신호는 시준렌즈(32)와 필터(34) 그리고 집광렌즈(36)를 통과하면서 대기중에 존재하는 배경신호를 제거하는 단계(E)와,상기 배경신호를 제거한 각각의 아날로그 라이다 신호를 디지탈 라이다 신호로 변환시키고자 ADC(38)에 개별적으로 입력되는 단계(F)와,상기 디지탈 라이다 신호를 이용하여 3차원 공간에 대한 풍향과 풍속을 측정 계산하고자 컴퓨터(40)에 입력되는 단계(G)로 이루어진 것을 특징으로 하는 광섬유 수신 광학계가 구비된 라이다 시스템을 이용한 3차원 풍향 풍속 측정방법.
- 제 1항에 있어서,상기 단계(G)에서 3차원 공간에 대한 풍향과 풍속을 측정하는 경우에 제 1,2,3광섬유(26,28,30)로부터 각기 다른 방향과 거리에서 입력되는 라이다 신호를 이용하여 각각의 라이다 신호 사이에서 정의되는 상호 교차상관함수를 통해 각 지점(42,43,44) 사이의 분진이동을 계산하여 3차원 공간에 대한 풍속과 풍향을 측정하도록 이루어진 것을 특징으로 하는 광섬유 수신 광학계가 구비된 라이다 시스템을 이용한 3차원 풍향 풍속 측정방법.
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KR1020000041595A KR100337368B1 (ko) | 2000-07-20 | 2000-07-20 | 광섬유 수신 광학계가 구비된 라이다 시스템을 이용한3차원 풍향 풍속 측정 방법 |
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KR1020000041595A KR100337368B1 (ko) | 2000-07-20 | 2000-07-20 | 광섬유 수신 광학계가 구비된 라이다 시스템을 이용한3차원 풍향 풍속 측정 방법 |
Publications (2)
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KR20020008444A KR20020008444A (ko) | 2002-01-31 |
KR100337368B1 true KR100337368B1 (ko) | 2002-05-22 |
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Families Citing this family (3)
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CN106546766B (zh) * | 2016-11-02 | 2018-12-25 | 中国海洋大学 | 基于两部测风激光雷达的倾斜平面扫描方法 |
KR101866505B1 (ko) | 2016-12-30 | 2018-07-23 | 한국에너지기술연구원 | 복잡지형에서 풍력자원조사를 위한 원격탐사장비의 최적 설치위치 결정방법 |
CN116224473B (zh) * | 2023-05-09 | 2023-06-27 | 北京东润环能科技股份有限公司 | 一种风速预报方法、模型训练方法、装置和存储介质 |
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