CA3173997A1 - Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar - Google Patents

Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar

Info

Publication number
CA3173997A1
CA3173997A1 CA3173997A CA3173997A CA3173997A1 CA 3173997 A1 CA3173997 A1 CA 3173997A1 CA 3173997 A CA3173997 A CA 3173997A CA 3173997 A CA3173997 A CA 3173997A CA 3173997 A1 CA3173997 A1 CA 3173997A1
Authority
CA
Canada
Prior art keywords
signal
phase
optical
signals
electrical
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CA3173997A
Other languages
English (en)
French (fr)
Inventor
Stephen C. CROUCH
Emil Kadlec
Krishna Mohan Rupavatharam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aurora Operations Inc
Original Assignee
Blackmore Sensors and Analytics LLC
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
Application filed by Blackmore Sensors and Analytics LLC filed Critical Blackmore Sensors and Analytics LLC
Publication of CA3173997A1 publication Critical patent/CA3173997A1/en
Pending legal-status Critical Current

Links

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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4915—Time delay measurement, e.g. operational details for pixel components; Phase measurement
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • 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
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/26—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals
    • 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
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • 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
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • 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
    • G01S17/66—Tracking systems using electromagnetic waves other than radio waves
    • 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
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4816—Constructional features, e.g. arrangements of optical elements of receivers alone
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/4861—Circuits for detection, sampling, integration or read-out
    • G01S7/4863—Detector arrays, e.g. charge-transfer gates
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • G01S7/4876—Extracting wanted echo signals, e.g. pulse detection by removing unwanted signals
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4913—Circuits for detection, sampling, integration or read-out
    • G01S7/4914—Circuits for detection, sampling, integration or read-out of detector arrays, e.g. charge-transfer gates
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4917—Receivers superposing optical signals in a photodetector, e.g. optical heterodyne detection
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/495—Counter-measures or counter-counter-measures using electronic or electro-optical means
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
CA3173997A 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar Pending CA3173997A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201862760437P 2018-11-13 2018-11-13
US62/760,437 2018-11-13
US201862783749P 2018-12-21 2018-12-21
US62/783,749 2018-12-21
CA3114616A CA3114616C (en) 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA3114616A Division CA3114616C (en) 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar

Publications (1)

Publication Number Publication Date
CA3173997A1 true CA3173997A1 (en) 2020-05-22

Family

ID=69160242

Family Applications (2)

Application Number Title Priority Date Filing Date
CA3173997A Pending CA3173997A1 (en) 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar
CA3114616A Active CA3114616C (en) 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar

Family Applications After (1)

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CA3114616A Active CA3114616C (en) 2018-11-13 2019-11-12 Method and system for laser phase tracking for internal reflection subtraction in phase-encoded lidar

Country Status (7)

Country Link
US (2) US10768282B2 (https=)
EP (2) EP3881096B1 (https=)
JP (4) JP7208388B2 (https=)
KR (2) KR102352325B1 (https=)
CN (2) CN118642069B (https=)
CA (2) CA3173997A1 (https=)
WO (1) WO2020102253A1 (https=)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11556000B1 (en) 2019-08-22 2023-01-17 Red Creamery Llc Distally-actuated scanning mirror
US12123950B2 (en) 2016-02-15 2024-10-22 Red Creamery, LLC Hybrid LADAR with co-planar scanning and imaging field-of-view
US12399278B1 (en) 2016-02-15 2025-08-26 Red Creamery Llc Hybrid LIDAR with optically enhanced scanned laser
US12399279B1 (en) 2016-02-15 2025-08-26 Red Creamery Llc Enhanced hybrid LIDAR with high-speed scanning
JP7208388B2 (ja) 2018-11-13 2023-01-18 ブラックモア センサーズ アンド アナリティクス エルエルシー 位相エンコーディングｌｉｄａｒにおける内部反射減算のためのレーザー位相追跡方法およびシステム
US10838061B1 (en) * 2019-07-16 2020-11-17 Blackmore Sensors & Analytics, LLC. Method and system for enhanced velocity resolution and signal to noise ratio in optical phase-encoded range detection
US11280909B2 (en) 2020-06-29 2022-03-22 Aurora Operations, Inc. Lidar transmit/receive system
US10948600B1 (en) * 2020-06-29 2021-03-16 Aurora Innovation, Inc. Systems and methods for IQ detection
US11415699B2 (en) 2020-06-29 2022-08-16 Aurora Operations, Inc. Lidar transmit/receive system
US11668805B2 (en) * 2020-09-04 2023-06-06 Ours Technology, Llc Multiple target LIDAR system
CA3200738A1 (en) * 2020-12-08 2022-06-16 Kyzyl HERZOG Method and system for simultaneous detection of signed doppler shifts and range measurements
DE102021113766B4 (de) 2021-05-27 2023-03-23 Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Dieses Vertreten Durch Den Präsidenten Der Physikalisch-Technischen Bundesanstalt Verfahren zur Messung der Geschwindigkeit eines Zielobjekts mittels LIDAR und LIDAR-System
WO2023124360A1 (zh) * 2021-12-30 2023-07-06 武汉万集光电技术有限公司 一种同轴收发激光雷达和光芯片
US11740337B1 (en) * 2022-08-15 2023-08-29 Aurora Operations, Inc. Light detection and ranging (lidar) sensor system including transceiver device
CN117713695A (zh) * 2022-09-06 2024-03-15 清华大学 信号检测方法和系统
CN115685235B (zh) * 2022-10-13 2024-05-03 南京工业大学 用于测量快速时变信号的光学相位追踪系统
DE102022133586A1 (de) * 2022-12-16 2024-06-27 Ams-Osram International Gmbh Optische messvorrichtung und verfahren
US20250253954A1 (en) * 2024-02-07 2025-08-07 Lumentum Operations Llc Effective ranging signal recovery from coherent iq receiver

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325095A (en) * 1992-07-14 1994-06-28 The United States Of America As Represented By The United States Department Of Energy Stepped frequency ground penetrating radar
US6580497B1 (en) * 1999-05-28 2003-06-17 Mitsubishi Denki Kabushiki Kaisha Coherent laser radar apparatus and radar/optical communication system
JP2000338246A (ja) * 1999-05-28 2000-12-08 Mitsubishi Electric Corp コヒーレントレーザレーダ装置
JP2002093193A (ja) * 2000-09-13 2002-03-29 Advantest Corp メモリ試験方法・メモリ試験装置
JP3881313B2 (ja) 2001-05-11 2007-02-14 三菱電機株式会社 コヒーレントレーザレーダ装置
FR2850168B1 (fr) * 2003-01-21 2005-04-01 Cit Alcatel Procede de detection d'un signal lumineux, et chaine lidar
US20050270228A1 (en) * 2003-07-03 2005-12-08 Stephens Scott A Radar system for local positioning
WO2005010799A2 (en) * 2003-07-16 2005-02-03 Shrenik Deliwala Optical encoding and reconstruction
CN101354437B (zh) * 2003-12-02 2011-02-09 株式会社日立医药 超声波诊断装置
US7589666B2 (en) * 2004-12-30 2009-09-15 Vaisala, Inc. System and method for processing data in weather radar
US7950812B2 (en) * 2006-01-11 2011-05-31 Cubic Corporation Shutters for infra red communication at moderate bandwidths
US7544945B2 (en) * 2006-02-06 2009-06-09 Avago Technologies General Ip (Singapore) Pte. Ltd. Vertical cavity surface emitting laser (VCSEL) array laser scanner
DE102008045386B4 (de) * 2008-09-02 2017-07-13 Carl Zeiss Ag Vorrichtung und Verfahren zum Bestimmen einer Objektposition
JP5690049B2 (ja) * 2009-02-27 2015-03-25 富士重工業株式会社 距離測定装置
US8659749B2 (en) * 2009-08-07 2014-02-25 Faro Technologies, Inc. Absolute distance meter with optical switch
CN101762809B (zh) * 2009-12-29 2012-08-08 江苏徕兹光电科技有限公司 基于液晶光阀原理相位测量的校准方法、校准装置和测距装置
JP5812713B2 (ja) * 2011-06-20 2015-11-17 三菱電機株式会社 レーザ測距装置
TWI476376B (zh) * 2011-11-09 2015-03-11 Zygo Corp 雙程干涉式編碼器系統
CN102540170B (zh) * 2012-02-10 2016-02-10 江苏徕兹光电科技股份有限公司 基于双波长激光管相位测量的校准方法及其测距装置
KR20140079090A (ko) * 2012-12-18 2014-06-26 한국전자통신연구원 레이저 방출기 모듈 및 그것이 적용된 레이저 감지 시스템
US9683928B2 (en) 2013-06-23 2017-06-20 Eric Swanson Integrated optical system and components utilizing tunable optical sources and coherent detection and phased array for imaging, ranging, sensing, communications and other applications
WO2016030656A1 (en) * 2014-08-28 2016-03-03 Aveillant Limited Radar system and associated apparatus and methods
JP6241283B2 (ja) * 2014-01-06 2017-12-06 株式会社豊田中央研究所 レーダ装置および距離速度測定方法
SG11201606510XA (en) * 2014-03-14 2016-09-29 Heptagon Micro Optics Pte Ltd Optoelectronic modules operable to recognize spurious reflections and to compensate for errors caused by spurious reflections
US10247581B2 (en) * 2014-04-28 2019-04-02 Optoplan As Interferometric optical fibre sensor system and method of interrogation
JP5886394B1 (ja) * 2014-09-24 2016-03-16 シャープ株式会社 レーザレーダ装置
JP2018510320A (ja) * 2014-12-09 2018-04-12 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 光学検出器
CN104931973B (zh) * 2015-06-17 2017-05-10 浙江理工大学 用于激光雷达系统的非对称相位编码测距方法
EP3118651B1 (de) * 2015-07-17 2021-04-21 Hexagon Technology Center GmbH Laufzeitmessvorrichtung und laufzeitmessverfahren mit ambiguitätslösung in echtzeit
CN105137446A (zh) * 2015-09-22 2015-12-09 中国科学院上海技术物理研究所 基于光学正交解调的相干零差多普勒测速激光雷达系统
JP6942966B2 (ja) 2016-03-16 2021-09-29 株式会社リコー 物体検出装置及び移動体装置
WO2018091970A1 (en) * 2016-11-16 2018-05-24 Innoviz Technologies Ltd. Lidar systems and methods
EP3555663B1 (en) 2016-12-16 2024-07-31 Baraja Pty Ltd Estimation of spatial profile of environment
US10422880B2 (en) * 2017-02-03 2019-09-24 Blackmore Sensors and Analytics Inc. Method and system for doppler detection and doppler correction of optical phase-encoded range detection
US10634794B2 (en) * 2017-02-28 2020-04-28 Stmicroelectronics, Inc. Vehicle dynamic obstacle compensation system
US11120104B2 (en) 2017-03-01 2021-09-14 Stmicroelectronics (Research & Development) Limited Method and apparatus for processing a histogram output from a detector sensor
EP3605140B1 (en) * 2017-04-13 2021-07-07 Mitsubishi Electric Corporation Laser radar device
US10401495B2 (en) 2017-07-10 2019-09-03 Blackmore Sensors and Analytics Inc. Method and system for time separated quadrature detection of doppler effects in optical range measurements
CN108008400A (zh) * 2017-11-17 2018-05-08 合肥安杰特光电科技有限公司 一种高精度测距系统
CN108089192A (zh) * 2017-11-17 2018-05-29 合肥安杰特光电科技有限公司 采用激光进行距离测量的方法
US10676085B2 (en) * 2018-04-11 2020-06-09 Aurora Innovation, Inc. Training machine learning model based on training instances with: training instance input based on autonomous vehicle sensor data, and training instance output based on additional vehicle sensor data
US10509167B2 (en) * 2018-04-23 2019-12-17 Hewlett Packard Enterprise Development Lp Optical phase difference calculation using analog processing
JP7208388B2 (ja) 2018-11-13 2023-01-18 ブラックモア センサーズ アンド アナリティクス エルエルシー 位相エンコーディングｌｉｄａｒにおける内部反射減算のためのレーザー位相追跡方法およびシステム

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