GB2000411A - Ceilometric method and apparatus - Google Patents

Ceilometric method and apparatus

Info

Publication number
GB2000411A
GB2000411A GB7827036A GB7827036A GB2000411A GB 2000411 A GB2000411 A GB 2000411A GB 7827036 A GB7827036 A GB 7827036A GB 7827036 A GB7827036 A GB 7827036A GB 2000411 A GB2000411 A GB 2000411A
Authority
GB
United Kingdom
Prior art keywords
range
height
reflected
pulses
overlap
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.)
Withdrawn
Application number
GB7827036A
Other languages
English (en)
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.)
Impulsphysik GmbH
Original Assignee
Impulsphysik GmbH
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 Impulsphysik GmbH filed Critical Impulsphysik GmbH
Publication of GB2000411A publication Critical patent/GB2000411A/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • G01S17/18—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein range gates are used
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB7827036A 1977-06-15 1978-06-15 Ceilometric method and apparatus Withdrawn GB2000411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2726999A DE2726999C2 (de) 1977-06-15 1977-06-15 Verfahren zur Wolkenhöhenmessung und langlebiger augensicherer Wolkenhöhenmesser nach dem Laufzeitprinzip

Publications (1)

Publication Number Publication Date
GB2000411A true GB2000411A (en) 1979-01-04

Family

ID=6011595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7827036A Withdrawn GB2000411A (en) 1977-06-15 1978-06-15 Ceilometric method and apparatus

Country Status (5)

Country Link
JP (1) JPS547368A (de)
CA (1) CA1103790A (de)
DE (1) DE2726999C2 (de)
FR (1) FR2394816A1 (de)
GB (1) GB2000411A (de)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403857A (en) * 1979-10-23 1983-09-13 South African Inventions Development Corporation Distance measuring device and method
US5978736A (en) * 1992-11-20 1999-11-02 Gec-Marconi Avionics (Holdings) Ltd. Vehicle obstruction detection system
US6115112A (en) * 1996-03-07 2000-09-05 Spectra Precision Ab Electronic distance measuring instrument
EP1967865A1 (de) * 2007-03-08 2008-09-10 NEC Corporation Vorrichtung und Verfahren zur Distanzmessung mithilfe eines Laserstrahls
WO2010000754A1 (de) 2008-07-04 2010-01-07 Eads Deutschland Gmbh Direktempfang-doppler-lidar-verfahren und direktempfang-doppler-lidar-vorrichtung
CN103364791A (zh) * 2013-06-03 2013-10-23 广东电网公司东莞供电局 一种设于输电杆塔的输电线路山火监测激光雷达装置
WO2018175990A1 (en) * 2017-03-23 2018-09-27 Innovusion Ireland Limited High resolution lidar using multi-stage multi-phase signal modulation, integration, sampling, and analysis
US10969475B2 (en) 2017-01-05 2021-04-06 Innovusion Ireland Limited Method and system for encoding and decoding LiDAR
US11009605B2 (en) 2017-01-05 2021-05-18 Innovusion Ireland Limited MEMS beam steering and fisheye receiving lens for LiDAR system
US11054508B2 (en) 2017-01-05 2021-07-06 Innovusion Ireland Limited High resolution LiDAR using high frequency pulse firing
US11289873B2 (en) 2018-04-09 2022-03-29 Innovusion Ireland Limited LiDAR systems and methods for exercising precise control of a fiber laser
US11300683B2 (en) 2016-12-30 2022-04-12 Innovusion Ireland Limited Multiwavelength LiDAR design
US11391823B2 (en) 2018-02-21 2022-07-19 Innovusion, Inc. LiDAR detection systems and methods with high repetition rate to observe far objects
US11422267B1 (en) 2021-02-18 2022-08-23 Innovusion, Inc. Dual shaft axial flux motor for optical scanners
US11422234B2 (en) 2018-02-23 2022-08-23 Innovusion, Inc. Distributed lidar systems
US11460554B2 (en) 2017-10-19 2022-10-04 Innovusion, Inc. LiDAR with large dynamic range
US11493601B2 (en) 2017-12-22 2022-11-08 Innovusion, Inc. High density LIDAR scanning
US11555895B2 (en) 2021-04-20 2023-01-17 Innovusion, Inc. Dynamic compensation to polygon and motor tolerance using galvo control profile
US11567182B2 (en) 2018-03-09 2023-01-31 Innovusion, Inc. LiDAR safety systems and methods
US11579258B1 (en) 2018-08-30 2023-02-14 Innovusion, Inc. Solid state pulse steering in lidar systems
US11579300B1 (en) 2018-08-21 2023-02-14 Innovusion, Inc. Dual lens receive path for LiDAR system
US11609336B1 (en) 2018-08-21 2023-03-21 Innovusion, Inc. Refraction compensation for use in LiDAR systems
US11614521B2 (en) 2021-04-21 2023-03-28 Innovusion, Inc. LiDAR scanner with pivot prism and mirror
US11614526B1 (en) 2018-08-24 2023-03-28 Innovusion, Inc. Virtual windows for LIDAR safety systems and methods
US11624806B2 (en) 2021-05-12 2023-04-11 Innovusion, Inc. Systems and apparatuses for mitigating LiDAR noise, vibration, and harshness
US11644543B2 (en) 2018-11-14 2023-05-09 Innovusion, Inc. LiDAR systems and methods that use a multi-facet mirror
US11662440B2 (en) 2021-05-21 2023-05-30 Innovusion, Inc. Movement profiles for smart scanning using galvonometer mirror inside LiDAR scanner
US11662439B2 (en) 2021-04-22 2023-05-30 Innovusion, Inc. Compact LiDAR design with high resolution and ultra-wide field of view
US11675050B2 (en) 2018-01-09 2023-06-13 Innovusion, Inc. LiDAR detection systems and methods
US11675053B2 (en) 2018-06-15 2023-06-13 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US11675055B2 (en) 2019-01-10 2023-06-13 Innovusion, Inc. LiDAR systems and methods with beam steering and wide angle signal detection
US11762065B2 (en) 2019-02-11 2023-09-19 Innovusion, Inc. Multiple beam generation from a single source beam for use with a lidar system
US11768294B2 (en) 2021-07-09 2023-09-26 Innovusion, Inc. Compact lidar systems for vehicle contour fitting
US11782131B2 (en) 2016-12-31 2023-10-10 Innovusion, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US11789128B2 (en) 2021-03-01 2023-10-17 Innovusion, Inc. Fiber-based transmitter and receiver channels of light detection and ranging systems
US11789132B2 (en) 2018-04-09 2023-10-17 Innovusion, Inc. Compensation circuitry for lidar receiver systems and method of use thereof
US11796645B1 (en) 2018-08-24 2023-10-24 Innovusion, Inc. Systems and methods for tuning filters for use in lidar systems
US11808888B2 (en) 2018-02-23 2023-11-07 Innovusion, Inc. Multi-wavelength pulse steering in LiDAR systems
US11860316B1 (en) 2018-08-21 2024-01-02 Innovusion, Inc. Systems and method for debris and water obfuscation compensation for use in LiDAR systems
US11871130B2 (en) 2022-03-25 2024-01-09 Innovusion, Inc. Compact perception device
US11927696B2 (en) 2018-02-21 2024-03-12 Innovusion, Inc. LiDAR systems with fiber optic coupling
US11965980B2 (en) 2018-01-09 2024-04-23 Innovusion, Inc. Lidar detection systems and methods that use multi-plane mirrors
US11977185B1 (en) 2019-04-04 2024-05-07 Seyond, Inc. Variable angle polygon for use with a LiDAR system
US11988773B2 (en) 2018-02-23 2024-05-21 Innovusion, Inc. 2-dimensional steering system for lidar systems
US12038534B2 (en) 2021-11-24 2024-07-16 Innovusion (suzhou) Co., Ltd. Motor for on-vehicle lidar, on-vehicle lidar, and vehicle
US12061289B2 (en) 2021-02-16 2024-08-13 Innovusion, Inc. Attaching a glass mirror to a rotating metal motor frame
US12072447B2 (en) 2021-04-22 2024-08-27 Seyond, Inc. Compact LiDAR design with high resolution and ultra-wide field of view

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434055A (en) * 1977-08-19 1979-03-13 Murata Manufacturing Co Tipptype electronic parts set and automatic feedig process of electronic parts using same set
DE3151333A1 (de) * 1981-12-24 1983-07-14 Früngel, Frank, Dr.-Ing., 2000 Hamburg Verfahren und vorrichtung zur senkung der betriebskosten und erhoehung der zuverlaessigkeit von meteorologischen messgeraeten, insbesondere wolkenhoehen- und schraegsichteinrichtungen mit halbleiter-lasern
SE451771B (sv) * 1982-10-15 1987-10-26 Asea Ab Forfaringssett for metning av molnhojd
DE3536659A1 (de) * 1984-12-27 1986-07-03 Impulsphysik Gmbh, 2000 Hamburg Vorrichtung zur wolkenhoehenmessung
CN105699981B (zh) * 2016-02-03 2018-02-02 南京信息工程大学 一种测量云层高度和厚度的硬件和软件配合方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946050A (en) * 1946-01-30 1960-07-19 Sperry Rand Corp Pulse radar object detection system
US2981942A (en) * 1952-01-23 1961-04-25 Raytheon Co Pulse echo systems
GB1322407A (en) * 1970-10-15 1973-07-04 British Aircraft Corp Ltd Rangefinders
GB1325069A (en) * 1970-12-10 1973-08-01 British Aircraft Corp Ltd Rangefinders
DE2606318C2 (de) * 1975-03-24 1986-08-28 Impulsphysik Gmbh, 2000 Hamburg Einfaches Meßgerät der Schrägsichtweite

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403857A (en) * 1979-10-23 1983-09-13 South African Inventions Development Corporation Distance measuring device and method
US5978736A (en) * 1992-11-20 1999-11-02 Gec-Marconi Avionics (Holdings) Ltd. Vehicle obstruction detection system
US6115112A (en) * 1996-03-07 2000-09-05 Spectra Precision Ab Electronic distance measuring instrument
EP1967865A1 (de) * 2007-03-08 2008-09-10 NEC Corporation Vorrichtung und Verfahren zur Distanzmessung mithilfe eines Laserstrahls
US8675184B2 (en) 2008-07-04 2014-03-18 Eads Deutschland Gmbh Direct detection Doppler LIDAR method and direction detection Doppler LIDAR device
WO2010000754A1 (de) 2008-07-04 2010-01-07 Eads Deutschland Gmbh Direktempfang-doppler-lidar-verfahren und direktempfang-doppler-lidar-vorrichtung
CN103364791A (zh) * 2013-06-03 2013-10-23 广东电网公司东莞供电局 一种设于输电杆塔的输电线路山火监测激光雷达装置
US11953601B2 (en) 2016-12-30 2024-04-09 Seyond, Inc. Multiwavelength lidar design
US11300683B2 (en) 2016-12-30 2022-04-12 Innovusion Ireland Limited Multiwavelength LiDAR design
US11977183B2 (en) 2016-12-31 2024-05-07 Seyond, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US11782131B2 (en) 2016-12-31 2023-10-10 Innovusion, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US11899134B2 (en) 2016-12-31 2024-02-13 Innovusion, Inc. 2D scanning high precision lidar using combination of rotating concave mirror and beam steering devices
US11782132B2 (en) 2016-12-31 2023-10-10 Innovusion, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US11054508B2 (en) 2017-01-05 2021-07-06 Innovusion Ireland Limited High resolution LiDAR using high frequency pulse firing
US11604279B2 (en) 2017-01-05 2023-03-14 Innovusion, Inc. MEMS beam steering and fisheye receiving lens for LiDAR system
US11947047B2 (en) 2017-01-05 2024-04-02 Seyond, Inc. Method and system for encoding and decoding LiDAR
US11009605B2 (en) 2017-01-05 2021-05-18 Innovusion Ireland Limited MEMS beam steering and fisheye receiving lens for LiDAR system
US12050288B2 (en) 2017-01-05 2024-07-30 Seyond, Inc. High resolution LiDAR using high frequency pulse firing
US10969475B2 (en) 2017-01-05 2021-04-06 Innovusion Ireland Limited Method and system for encoding and decoding LiDAR
WO2018175990A1 (en) * 2017-03-23 2018-09-27 Innovusion Ireland Limited High resolution lidar using multi-stage multi-phase signal modulation, integration, sampling, and analysis
US11460554B2 (en) 2017-10-19 2022-10-04 Innovusion, Inc. LiDAR with large dynamic range
US11493601B2 (en) 2017-12-22 2022-11-08 Innovusion, Inc. High density LIDAR scanning
US12078755B2 (en) 2018-01-09 2024-09-03 Seyond, Inc. LiDAR detection systems and methods that use multi-plane mirrors
US11675050B2 (en) 2018-01-09 2023-06-13 Innovusion, Inc. LiDAR detection systems and methods
US11965980B2 (en) 2018-01-09 2024-04-23 Innovusion, Inc. Lidar detection systems and methods that use multi-plane mirrors
US11977184B2 (en) 2018-01-09 2024-05-07 Seyond, Inc. LiDAR detection systems and methods that use multi-plane mirrors
US11927696B2 (en) 2018-02-21 2024-03-12 Innovusion, Inc. LiDAR systems with fiber optic coupling
US11391823B2 (en) 2018-02-21 2022-07-19 Innovusion, Inc. LiDAR detection systems and methods with high repetition rate to observe far objects
US11782138B2 (en) 2018-02-21 2023-10-10 Innovusion, Inc. LiDAR detection systems and methods with high repetition rate to observe far objects
US11422234B2 (en) 2018-02-23 2022-08-23 Innovusion, Inc. Distributed lidar systems
US12085673B2 (en) 2018-02-23 2024-09-10 Seyond, Inc. Distributed LiDAR systems
US11988773B2 (en) 2018-02-23 2024-05-21 Innovusion, Inc. 2-dimensional steering system for lidar systems
US11808888B2 (en) 2018-02-23 2023-11-07 Innovusion, Inc. Multi-wavelength pulse steering in LiDAR systems
US11567182B2 (en) 2018-03-09 2023-01-31 Innovusion, Inc. LiDAR safety systems and methods
US12032100B2 (en) 2018-03-09 2024-07-09 Seyond, Inc. Lidar safety systems and methods
US11569632B2 (en) 2018-04-09 2023-01-31 Innovusion, Inc. Lidar systems and methods for exercising precise control of a fiber laser
US11789132B2 (en) 2018-04-09 2023-10-17 Innovusion, Inc. Compensation circuitry for lidar receiver systems and method of use thereof
US11289873B2 (en) 2018-04-09 2022-03-29 Innovusion Ireland Limited LiDAR systems and methods for exercising precise control of a fiber laser
US11675053B2 (en) 2018-06-15 2023-06-13 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US11860313B2 (en) 2018-06-15 2024-01-02 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US12050269B2 (en) 2018-08-21 2024-07-30 Seyond, Inc. Dual lens receive path for LiDAR system
US11579300B1 (en) 2018-08-21 2023-02-14 Innovusion, Inc. Dual lens receive path for LiDAR system
US11609336B1 (en) 2018-08-21 2023-03-21 Innovusion, Inc. Refraction compensation for use in LiDAR systems
US11860316B1 (en) 2018-08-21 2024-01-02 Innovusion, Inc. Systems and method for debris and water obfuscation compensation for use in LiDAR systems
US11614526B1 (en) 2018-08-24 2023-03-28 Innovusion, Inc. Virtual windows for LIDAR safety systems and methods
US11796645B1 (en) 2018-08-24 2023-10-24 Innovusion, Inc. Systems and methods for tuning filters for use in lidar systems
US11940570B2 (en) 2018-08-24 2024-03-26 Seyond, Inc. Virtual windows for LiDAR safety systems and methods
US11914076B2 (en) 2018-08-30 2024-02-27 Innovusion, Inc. Solid state pulse steering in LiDAR systems
US11579258B1 (en) 2018-08-30 2023-02-14 Innovusion, Inc. Solid state pulse steering in lidar systems
US11644543B2 (en) 2018-11-14 2023-05-09 Innovusion, Inc. LiDAR systems and methods that use a multi-facet mirror
US11686824B2 (en) 2018-11-14 2023-06-27 Innovusion, Inc. LiDAR systems that use a multi-facet mirror
US11675055B2 (en) 2019-01-10 2023-06-13 Innovusion, Inc. LiDAR systems and methods with beam steering and wide angle signal detection
US11762065B2 (en) 2019-02-11 2023-09-19 Innovusion, Inc. Multiple beam generation from a single source beam for use with a lidar system
US11977185B1 (en) 2019-04-04 2024-05-07 Seyond, Inc. Variable angle polygon for use with a LiDAR system
US12061289B2 (en) 2021-02-16 2024-08-13 Innovusion, Inc. Attaching a glass mirror to a rotating metal motor frame
US11422267B1 (en) 2021-02-18 2022-08-23 Innovusion, Inc. Dual shaft axial flux motor for optical scanners
US11567213B2 (en) 2021-02-18 2023-01-31 Innovusion, Inc. Dual shaft axial flux motor for optical scanners
US11789128B2 (en) 2021-03-01 2023-10-17 Innovusion, Inc. Fiber-based transmitter and receiver channels of light detection and ranging systems
US11555895B2 (en) 2021-04-20 2023-01-17 Innovusion, Inc. Dynamic compensation to polygon and motor tolerance using galvo control profile
US11614521B2 (en) 2021-04-21 2023-03-28 Innovusion, Inc. LiDAR scanner with pivot prism and mirror
US11662439B2 (en) 2021-04-22 2023-05-30 Innovusion, Inc. Compact LiDAR design with high resolution and ultra-wide field of view
US12072447B2 (en) 2021-04-22 2024-08-27 Seyond, Inc. Compact LiDAR design with high resolution and ultra-wide field of view
US11624806B2 (en) 2021-05-12 2023-04-11 Innovusion, Inc. Systems and apparatuses for mitigating LiDAR noise, vibration, and harshness
US11662440B2 (en) 2021-05-21 2023-05-30 Innovusion, Inc. Movement profiles for smart scanning using galvonometer mirror inside LiDAR scanner
US11768294B2 (en) 2021-07-09 2023-09-26 Innovusion, Inc. Compact lidar systems for vehicle contour fitting
US12038534B2 (en) 2021-11-24 2024-07-16 Innovusion (suzhou) Co., Ltd. Motor for on-vehicle lidar, on-vehicle lidar, and vehicle
US11871130B2 (en) 2022-03-25 2024-01-09 Innovusion, Inc. Compact perception device

Also Published As

Publication number Publication date
CA1103790A (en) 1981-06-23
FR2394816B3 (de) 1981-02-27
DE2726999C2 (de) 1983-05-05
JPS6114470B2 (de) 1986-04-18
FR2394816A1 (fr) 1979-01-12
DE2726999A1 (de) 1978-12-21
JPS547368A (en) 1979-01-20

Similar Documents

Publication Publication Date Title
GB2000411A (en) Ceilometric method and apparatus
JPS5385192A (en) Aircraft coherent pulse doppler radar system
JPS545394A (en) Method of producing diode laser
JPS549679A (en) Method of and appatatus for determining presence of ultrasonic wave with optoelectronic detector
FR2506085B1 (fr) Dispositif pour obtenir un rayonnement laser
JPS5462487A (en) Reactor
JPS532983A (en) Ultrasonic image receiver operated by pulse echo method
JPS535885A (en) Ultrasonic image receiver operated by pulse echo method
JPS57569A (en) Sounding device
ES271465A1 (es) Metodo de ensayo del refinado granular de barras metálicas
JPS532982A (en) Ultrasonic image receiver operated by pulse echo method
SE8205864D0 (sv) Molnhojdsmetare
JPS56153267A (en) Distance measuring device using ultrasonic wave
GB2012422A (en) Apparatus and Method for Determining Velocity of Acoustic Waves in Earth Formations
GB2000934B (en) Arragement for eliminating fixed echoes in a pulse radar
JPS56164969A (en) Reflection searching device
DE3272608D1 (en) Method and device for fast energy measuring, and application to the measuring of the energy produced by a pulse laser
FR2599854B1 (fr) Procede de mesure de la distance ambigue et radar doppler a impulsions mettant en oeuvre un tel procede
JPS5432371A (en) Rotating speed detector
JPS53119602A (en) Data transmission system
JPS5249792A (en) Radar apparatus
SU1150476A2 (ru) Способ измерени профил границы раздела двух сред
JPS5417872A (en) Depth measuring method of fine patterns
JPS53109668A (en) Measuring method and apparatus for boundary level by supersonic pulses
JPS5729954A (en) Pulse radar apparatus for measuring wind velocity

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)