IL140850A - Speckle mitigation for coherent detection employing a wide band signal - Google Patents

Speckle mitigation for coherent detection employing a wide band signal

Info

Publication number
IL140850A
IL140850A IL14085099A IL14085099A IL140850A IL 140850 A IL140850 A IL 140850A IL 14085099 A IL14085099 A IL 14085099A IL 14085099 A IL14085099 A IL 14085099A IL 140850 A IL140850 A IL 140850A
Authority
IL
Israel
Prior art keywords
target
signal
frequency
laser
footprint
Prior art date
Application number
IL14085099A
Other languages
English (en)
Other versions
IL140850A0 (en
Inventor
H Hasson Victor
A Kovacs Mark
Original Assignee
Textron Systems Corp
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 Textron Systems Corp filed Critical Textron Systems Corp
Publication of IL140850A0 publication Critical patent/IL140850A0/xx
Publication of IL140850A publication Critical patent/IL140850A/en

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
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • G01J9/0215—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods by shearing interferometric methods
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated 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
    • 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
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • 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
    • 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
    • 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
    • G01S7/484—Transmitters
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)
IL14085099A 1998-07-28 1999-07-19 Speckle mitigation for coherent detection employing a wide band signal IL140850A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9446198P 1998-07-28 1998-07-28
US09/277,003 US6184981B1 (en) 1998-07-28 1999-03-26 Speckle mitigation for coherent detection employing a wide band signal
PCT/US1999/016303 WO2000014513A2 (en) 1998-07-28 1999-07-19 Speckle mitigation for coherent detection employing a wide band signal

Publications (2)

Publication Number Publication Date
IL140850A0 IL140850A0 (en) 2002-02-10
IL140850A true IL140850A (en) 2004-06-01

Family

ID=26788912

Family Applications (1)

Application Number Title Priority Date Filing Date
IL14085099A IL140850A (en) 1998-07-28 1999-07-19 Speckle mitigation for coherent detection employing a wide band signal

Country Status (8)

Country Link
US (1) US6184981B1 (de)
EP (1) EP1144982B1 (de)
JP (1) JP3464650B2 (de)
AU (1) AU754831B2 (de)
CA (1) CA2337497C (de)
DE (1) DE69911650T2 (de)
IL (1) IL140850A (de)
WO (1) WO2000014513A2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736321B2 (en) 1995-12-18 2004-05-18 Metrologic Instruments, Inc. Planar laser illumination and imaging (PLIIM) system employing wavefront control methods for reducing the power of speckle-pattern noise digital images acquired by said system
US6631842B1 (en) 2000-06-07 2003-10-14 Metrologic Instruments, Inc. Method of and system for producing images of objects using planar laser illumination beams and image detection arrays
US6629641B2 (en) * 2000-06-07 2003-10-07 Metrologic Instruments, Inc. Method of and system for producing images of objects using planar laser illumination beams and image detection arrays
DE19703730A1 (de) * 1997-01-31 1998-08-06 Daimler Benz Ag Verfahren und Vorrichtung zur Beseitigung von Bildspeckles bei scannender Laserbildprojektion
US7028899B2 (en) 1999-06-07 2006-04-18 Metrologic Instruments, Inc. Method of speckle-noise pattern reduction and apparatus therefore based on reducing the temporal-coherence of the planar laser illumination beam before it illuminates the target object by applying temporal phase modulation techniques during the transmission of the plib towards the target
US7584893B2 (en) * 1998-03-24 2009-09-08 Metrologic Instruments, Inc. Tunnel-type digital imaging system for use within retail shopping environments such as supermarkets
US6959870B2 (en) 1999-06-07 2005-11-01 Metrologic Instruments, Inc. Planar LED-based illumination array (PLIA) chips
US6934038B2 (en) * 2000-02-15 2005-08-23 Asml Holding N.V. Method for optical system coherence testing
US8042740B2 (en) * 2000-11-24 2011-10-25 Metrologic Instruments, Inc. Method of reading bar code symbols on objects at a point-of-sale station by passing said objects through a complex of stationary coplanar illumination and imaging planes projected into a 3D imaging volume
US7140543B2 (en) * 2000-11-24 2006-11-28 Metrologic Instruments, Inc. Planar light illumination and imaging device with modulated coherent illumination that reduces speckle noise induced by coherent illumination
US7954719B2 (en) * 2000-11-24 2011-06-07 Metrologic Instruments, Inc. Tunnel-type digital imaging-based self-checkout system for use in retail point-of-sale environments
US7077319B2 (en) * 2000-11-24 2006-07-18 Metrologic Instruments, Inc. Imaging engine employing planar light illumination and linear imaging
US7513428B2 (en) * 2001-11-21 2009-04-07 Metrologic Instruments, Inc. Planar laser illumination and imaging device employing laser current modulation to generate spectral components and reduce temporal coherence of laser beam, so as to achieve a reduction in speckle-pattern noise during time-averaged detection of images of objects illuminated thereby during imaging operations
KR100982900B1 (ko) * 2002-03-15 2010-09-20 록히드 마틴 코포레이션 목표 시그니처 계산 및 인식을 위한 시스템 및 방법
US7245742B2 (en) * 2002-07-01 2007-07-17 The Regents Of The University Of California Video surveillance with speckle imaging
US7841533B2 (en) * 2003-11-13 2010-11-30 Metrologic Instruments, Inc. Method of capturing and processing digital images of an object within the field of view (FOV) of a hand-supportable digitial image capture and processing system
DE102005034729B3 (de) * 2005-07-21 2007-02-08 Eads Deutschland Gmbh Verfahren und Lidar-System zur Messung von Luftturbulenzen an Bord von Luftfahrzeugen sowie für Flughäfen und Windfarmen
US8030615B2 (en) * 2008-06-20 2011-10-04 Bowling Green State University Method and apparatus for detecting organic materials and objects from multispectral reflected light
US7767966B2 (en) * 2008-06-20 2010-08-03 Bowling Green State University Method and apparatus for detecting organic materials and objects from multispectral reflected light
DE102008031682A1 (de) * 2008-07-04 2010-03-11 Eads Deutschland Gmbh Direktempfang-Doppler-LIDAR-Verfahren und Direktempfang-Doppler-LIDAR-Vorrichtung
DE102009012646A1 (de) * 2009-03-11 2010-09-23 Amt Gmbh Abstandsmessung
EP2385391A3 (de) 2010-05-04 2012-08-01 Sony Corporation Aktive Bildgebungsvorrichtung und Verfahren zur Granulationsrauschunterdrückung
RU2655040C1 (ru) * 2017-08-16 2018-05-23 Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минромторг России) Доплеровский сканирующий лидар бортового базирования
US11327176B2 (en) * 2017-12-27 2022-05-10 Mitsubishi Electric Corporation Laser radar device
FR3082007B1 (fr) * 2018-06-01 2020-09-11 Thales Sa Procede et systeme de determination d'une dimension caracteristique d'un navire

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819920A (en) * 1973-01-29 1974-06-25 Singer Co Digital frequency tracker
US3973852A (en) 1974-08-30 1976-08-10 The Dow Chemical Company Method and apparatus for measuring particulate concentration in the atmosphere
US4176959A (en) 1978-04-17 1979-12-04 Raytheon Company High gain laser spectrometer
US4475816A (en) 1980-02-15 1984-10-09 The United States Of America As Represented By The Secretary Of The Navy Method for determining in situ the absorption coefficient of particulate media using pulsed laser technique
US4450356A (en) 1982-06-07 1984-05-22 Sri International Frequency-mixed CO2 laser radar for remote detection of gases in the atmosphere
US4496839A (en) 1982-11-03 1985-01-29 Spectral Sciences Incorporated System and method for remote detection and identification of chemical species by laser initiated nonresonant infrared spectroscopy
US4648276A (en) * 1984-01-27 1987-03-10 Klepper John R Apparatus for measuring the characteristics of an ultrasonic wave medium
US4934816A (en) 1988-05-18 1990-06-19 Southwest Sciences, Incorporated Laser absorption detection enhancing apparatus and method
JPH0315742A (ja) 1989-03-23 1991-01-24 Anritsu Corp ガス検出装置
US5026991A (en) 1989-09-20 1991-06-25 Spectral Sciences, Inc. Gaseous species absorption monitor
US5267016A (en) * 1991-11-27 1993-11-30 United Technologies Corporation Laser diode distance measurement
US5252060A (en) 1992-03-27 1993-10-12 Mckinnon J Thomas Infrared laser fault detection method for hazardous waste incineration
US5381222A (en) * 1992-05-20 1995-01-10 The United States Of America As Represented By The Department Of Commerce Method of remote sensing of ocean surface currents
US5241315A (en) 1992-08-13 1993-08-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Micro pulse laser radar
US5426504A (en) * 1994-07-28 1995-06-20 United Technologies Corporation Optical depth gauge for optically rough surfaces
JP2000121836A (ja) 1998-10-09 2000-04-28 Sony Corp 光源装置、照明方法及びその装置、並びに、光学装置
JP4345127B2 (ja) 1999-03-18 2009-10-14 ソニー株式会社 照明装置及び照明方法

Also Published As

Publication number Publication date
DE69911650D1 (de) 2003-10-30
AU754831B2 (en) 2002-11-28
EP1144982A2 (de) 2001-10-17
DE69911650T2 (de) 2004-07-01
JP3464650B2 (ja) 2003-11-10
WO2000014513A3 (en) 2001-10-04
US6184981B1 (en) 2001-02-06
CA2337497A1 (en) 2000-03-16
IL140850A0 (en) 2002-02-10
EP1144982B1 (de) 2003-09-24
JP2002524731A (ja) 2002-08-06
AU2019800A (en) 2000-03-27
WO2000014513A2 (en) 2000-03-16
CA2337497C (en) 2007-03-13
WO2000014513A9 (en) 2000-08-03

Similar Documents

Publication Publication Date Title
US6184981B1 (en) Speckle mitigation for coherent detection employing a wide band signal
KR102674023B1 (ko) 멀티 패싯 편향기를 포함하는 라이다 시스템
US4995720A (en) Pulsed coherent Doppler laser radar
EP3973314B1 (de) Scanning-lidar ohne bewegliche teile mit 360-grad-sichtfeld
US20060227316A1 (en) Three-dimensional imaging device
EP3973312B1 (de) Frequenzmodulierter abtast-lidar mit 360-grad-sichtfeld
EP1397697B1 (de) Ladar system mit synthetischer aperture und inkohärenten laserimpulsen
US5872628A (en) Noise pair velocity and range echo location system
US5745437A (en) Method and apparatus for coherent burst ranging
US5504719A (en) Laser hydrophone and virtual array of laser hydrophones
EP3973313B1 (de) Verfahren für abtast-lidar mit grosswinkeligem sichtfeld ohne bewegliche teile
JP2018520346A (ja) ビート信号帯域幅圧縮方法、装置および適用
JP2000338244A (ja) コヒーレントレーザレーダ装置
IL286820A (en) A method and system for mapping and measuring distance
CN1233759A (zh) 探测大气的非相干激光雷达系统
US20240103173A1 (en) Multiplexed Light Detection and Ranging Apparatus
US6373558B1 (en) Passive ranging to a target reflecting solar radiation
AU2001286870A1 (en) Passive ranging to a target reflecting solar radiation
CN119881914B (zh) 双调频微腔光频梳雷达单探测器并行探测处理方法及装置
San Lin Ocean lidar instrument and measurements
Agishev Analytic comparison of some features of pulse-lidar and CW-FM-ladar remote sensing
Kavaya et al. Aerosol backscatter lidar calibration and data interpretation
Matson et al. Heterodyne laser radar for space-object imaging: results from recent field experiments
WO2024263499A2 (en) Multiplexed light detection and ranging apparatus
IL307724A (en) Laser imaging system and method

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees