JP6820845B2 - 弾性および非弾性光散乱を利用したドップラー効果測定のためのシステムと方法 - Google Patents
弾性および非弾性光散乱を利用したドップラー効果測定のためのシステムと方法 Download PDFInfo
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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
- G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/50—Systems of measurement based on relative movement of target
- G01S17/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
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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
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
Claims (5)
- 散乱光のドップラー効果を測定するための方法であって、
紫外線(UV)光を、ターゲットに向かって、光エミッタによって投射するステップと、
前記ターゲットによって反射された前記投射されたUV光から、光レシーバによって、前記ターゲットのUV光散乱を受信するステップと、
前記ターゲットの巨視的な事態に係る視線速度の分布を獲得するために、既定の幅を有する複数のスペクトルシフトビンにおいて、発せられた前記UV光に関してドップラーシフトに相当する前記UV光散乱の周波数シフトを測定するステップであり、前記光レシーバによって提供される複数のヘテロダイン、オートダイン、または、ホモダインのビートノートについて、デジタルフーリエ変換を実行する、ステップと、
前記UV光散乱のドップラー効果を特定するために、前記獲得された前記視線速度の分布を処理するステップと、
微視的ドップラーシフト確率分布の重心シフトとして、ウインド視線速度を分離するステップ、
を含み、さらに、
それぞれのスペクトルシフトビンについて要求されるフォトンの数量、および、前記ドップラー効果に対する既定の要求される精度に応じて、前記スペクトルシフトビンの数量および幅を適応的に変更するステップと、
後方散乱光を分配するために、前記複数のヘテロダイン、オートダイン、または、ホモダインの検出バンド幅を適応的に変更するステップと、を含み、
前記ターゲットの巨視的な事態は、前記ターゲットに係る複数の原子、分子、または、パーティクルである、
方法。 - 前記方法は、さらに、
受信した前記UV光散乱を、光学的に、処理し、フィルターし、そして、電気信号へ変換するステップ、を含む、
請求項1に記載の方法。 - 前記視線速度の分布の重心シフトは、全体的な流速/風速情報を提供し、かつ、
より広い分布の幅は、ターゲット流れ情報における前記ターゲットの巨視的な事態の速度によって決定される、
請求項1に記載の方法。 - 散乱光のドップラー効果を測定するための装置であって、
ターゲットに向かって紫外線(UV)光を発するために光エミッタと、
前記ターゲットで反射された前記UV光から、前記ターゲットからのUV光散乱を受信するための光レシーバと、
ドップラーシフトに対応する前記ターゲットの巨視的な事態に係る視線速度の分布を獲得するために、既定の幅を有する複数のスペクトルシフトビンにおいて、発せられた前記UV光に関して前記UV光散乱の周波数シフトを測定し、前記UV光散乱のドップラー効果を特定するために、前記視線速度の分布を処理し、微視的ドップラーシフト確率分布の重心シフトとして、ウインド視線速度を分離し、かつ、前記光レシーバによって提供される複数のヘテロダイン、オートダイン、または、ホモダインのビートノートについて、デジタルフーリエ変換を実行する、プロセッサ、
を含み、
前記プロセッサは、
それぞれのスペクトルシフトビンについて要求されるフォトンの数量、および、前記ドップラー効果に対する既定の要求される精度に応じて、前記スペクトルシフトビンの数量および幅を適応的に変更し、かつ、
後方散乱光を分配するために、前記複数のヘテロダイン、オートダイン、または、ホモダインの検出バンド幅を適応的に変更し、
前記ターゲットの巨視的な事態は、前記ターゲットに係る複数の原子、分子、または、パーティクルである、
装置。 - 前記装置は、さらに、
受信した前記UV光散乱を、光学的に処理し、そして、スペクトル的にフィルターするための、フィルタと整列デバイス、を含む、
請求項4に記載の装置。
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US14/537,683 US9766262B2 (en) | 2014-11-10 | 2014-11-10 | System and method for measuring doppler effect utilizing elastic and inelastic light scattering |
US14/537,683 | 2014-11-10 | ||
PCT/US2015/048554 WO2016076942A1 (en) | 2014-11-10 | 2015-09-04 | System and method for measuring doppler effect utilizing elastic and inelastic light scattering |
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JP2017533433A JP2017533433A (ja) | 2017-11-09 |
JP2017533433A5 JP2017533433A5 (ja) | 2020-12-03 |
JP6820845B2 true JP6820845B2 (ja) | 2021-01-27 |
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US (1) | US9766262B2 (ja) |
EP (1) | EP3218741B1 (ja) |
JP (1) | JP6820845B2 (ja) |
IL (1) | IL251359B (ja) |
WO (1) | WO2016076942A1 (ja) |
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WO2016092705A1 (ja) * | 2014-12-12 | 2016-06-16 | 三菱電機株式会社 | レーザレーダ装置 |
US10451518B2 (en) * | 2016-05-10 | 2019-10-22 | Rd2, Llc | All fiber temperature and air density sensor |
CN106200697B (zh) * | 2016-09-06 | 2018-12-07 | 中国科学院上海天文台 | 一种射电望远镜指向实时修正方法 |
CN108387754B (zh) * | 2018-03-20 | 2019-12-13 | 山东省科学院激光研究所 | 二维风速风向传感器及系统 |
CN110824184B (zh) * | 2019-10-12 | 2020-11-17 | 中国科学院西安光学精密机械研究所 | 一种激光多普勒测速仪数据反演方法 |
US11994785B2 (en) * | 2020-06-03 | 2024-05-28 | Raytheon Company | Dispersive beam steering based on optical-frequency shift patterns |
CN113447946B (zh) * | 2021-06-28 | 2022-08-05 | 哈尔滨工业大学 | 微弱激光回波信号的微多普勒信息测量系统 |
CN117042273B (zh) * | 2023-07-18 | 2024-04-16 | 中国人民解放军国防科技大学 | 基于超分辨光谱仪的二维等离子体速度测量系统及方法 |
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GB0411097D0 (en) | 2004-05-19 | 2004-06-23 | Qinetiq Ltd | Laser radar device and method |
US7656526B1 (en) * | 2006-07-21 | 2010-02-02 | University Corporation For Atmospheric Research | Lidar system for remote determination of calibrated, absolute aerosol backscatter coefficients |
FR2922314B1 (fr) * | 2007-10-16 | 2010-02-26 | Thales Sa | Dispositif optique de mesure de parametres anemometriques |
US8077294B1 (en) * | 2008-01-17 | 2011-12-13 | Ball Aerospace & Technologies Corp. | Optical autocovariance lidar |
US8339584B2 (en) * | 2010-05-21 | 2012-12-25 | Teledyne Technologies Incorporated | Velocity measuring system |
US9007570B1 (en) * | 2013-01-11 | 2015-04-14 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Airborne wind profiling algorithm for Doppler Wind LIDAR |
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IL251359B (en) | 2021-02-28 |
EP3218741B1 (en) | 2022-06-15 |
WO2016076942A1 (en) | 2016-05-19 |
EP3218741A1 (en) | 2017-09-20 |
US9766262B2 (en) | 2017-09-19 |
US20160131676A1 (en) | 2016-05-12 |
JP2017533433A (ja) | 2017-11-09 |
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