GB1427164A - Interference eliminating system for radars - Google Patents

Interference eliminating system for radars

Info

Publication number
GB1427164A
GB1427164A GB806573A GB806573A GB1427164A GB 1427164 A GB1427164 A GB 1427164A GB 806573 A GB806573 A GB 806573A GB 806573 A GB806573 A GB 806573A GB 1427164 A GB1427164 A GB 1427164A
Authority
GB
United Kingdom
Prior art keywords
time intervals
line
delay
radar
pulses
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.)
Expired
Application number
GB806573A
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Publication of GB1427164A publication Critical patent/GB1427164A/en
Expired 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
    • 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
    • G01S13/22—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition frequency
    • G01S13/225—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition frequency with cyclic repetition of a non-uniform pulse sequence, e.g. staggered PRF
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
    • G01S7/0235—Avoidance by time multiplex

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB806573A 1972-02-19 1973-02-19 Interference eliminating system for radars Expired GB1427164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47017439A JPS5245479B2 (enrdf_load_stackoverflow) 1972-02-19 1972-02-19

Publications (1)

Publication Number Publication Date
GB1427164A true GB1427164A (en) 1976-03-10

Family

ID=11944044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB806573A Expired GB1427164A (en) 1972-02-19 1973-02-19 Interference eliminating system for radars

Country Status (3)

Country Link
JP (1) JPS5245479B2 (enrdf_load_stackoverflow)
FR (1) FR2172409B3 (enrdf_load_stackoverflow)
GB (1) GB1427164A (enrdf_load_stackoverflow)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2387300A (en) * 2002-04-02 2003-10-08 Thales Plc Modulation of an electromagnetic pulse train
EP1650582A1 (en) * 2004-10-20 2006-04-26 TDK Corporation Pulse wave radar device
US20130241766A1 (en) * 2010-11-16 2013-09-19 Panasonic Corporation Radar device
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
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
US11569632B2 (en) 2018-04-09 2023-01-31 Innovusion, Inc. Lidar systems and methods for exercising precise control of a fiber laser
US11579300B1 (en) 2018-08-21 2023-02-14 Innovusion, Inc. Dual lens receive path for LiDAR system
US11579258B1 (en) 2018-08-30 2023-02-14 Innovusion, Inc. Solid state pulse steering in lidar systems
US11604279B2 (en) 2017-01-05 2023-03-14 Innovusion, Inc. MEMS beam steering and fisheye receiving lens for LiDAR system
US11609336B1 (en) 2018-08-21 2023-03-21 Innovusion, Inc. Refraction compensation for use in LiDAR systems
US11614526B1 (en) 2018-08-24 2023-03-28 Innovusion, Inc. Virtual windows for LIDAR safety systems and methods
US11614521B2 (en) 2021-04-21 2023-03-28 Innovusion, Inc. LiDAR scanner with pivot prism and mirror
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
US11662439B2 (en) 2021-04-22 2023-05-30 Innovusion, Inc. Compact LiDAR design with high resolution and ultra-wide field of view
US11662440B2 (en) 2021-05-21 2023-05-30 Innovusion, Inc. Movement profiles for smart scanning using galvonometer mirror inside LiDAR scanner
US11675055B2 (en) 2019-01-10 2023-06-13 Innovusion, Inc. LiDAR systems and methods with beam steering and wide angle signal detection
US11675053B2 (en) 2018-06-15 2023-06-13 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US11675050B2 (en) 2018-01-09 2023-06-13 Innovusion, Inc. LiDAR detection systems and methods
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
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
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
US11947047B2 (en) 2017-01-05 2024-04-02 Seyond, Inc. Method and system for encoding and decoding LiDAR
US11953601B2 (en) 2016-12-30 2024-04-09 Seyond, Inc. Multiwavelength lidar design
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
US12050288B2 (en) 2017-01-05 2024-07-30 Seyond, Inc. High resolution LiDAR using high frequency pulse firing
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
US12189058B2 (en) 2017-12-22 2025-01-07 Seyond, Inc. High resolution LiDAR using high frequency pulse firing
US12204033B2 (en) 2022-03-25 2025-01-21 Seyond, Inc. Multimodal detection with integrated sensors
US12298399B2 (en) 2018-02-22 2025-05-13 Seyond, Inc. Receive path for LiDAR system
US12313788B1 (en) 2018-10-09 2025-05-27 Seyond, Inc. Ultrashort pulses in LiDAR systems

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5432091A (en) * 1977-08-15 1979-03-09 Nec Corp Radar interference eleimenating system
SE408985B (sv) * 1977-12-27 1979-07-16 Philips Svenska Ab Pulsgenerator
JPS5717462U (enrdf_load_stackoverflow) * 1980-06-26 1982-01-29
JPH0235042U (enrdf_load_stackoverflow) * 1988-08-29 1990-03-06
JP4916678B2 (ja) * 2005-06-21 2012-04-18 三菱電機株式会社 レーダ装置

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2387300A (en) * 2002-04-02 2003-10-08 Thales Plc Modulation of an electromagnetic pulse train
GB2387300B (en) * 2002-04-02 2005-02-16 Thales Plc Method and apparatus for modulation
EP1650582A1 (en) * 2004-10-20 2006-04-26 TDK Corporation Pulse wave radar device
US7053819B2 (en) 2004-10-20 2006-05-30 Tdk Corporation Pulse wave radar device
US7345624B2 (en) 2004-10-20 2008-03-18 Tdk Corporation Pulse wave radar device
US20130241766A1 (en) * 2010-11-16 2013-09-19 Panasonic Corporation Radar device
US9664777B2 (en) * 2010-11-16 2017-05-30 Panasonic Intellectual Property Management Co., Ltd. Radar device
US11953601B2 (en) 2016-12-30 2024-04-09 Seyond, Inc. Multiwavelength lidar design
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
US12276755B2 (en) 2016-12-31 2025-04-15 Seyond, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US12248095B2 (en) 2016-12-31 2025-03-11 Seyond, Inc. 2D scanning high precision LiDAR using combination of rotating concave mirror and beam steering devices
US12241999B2 (en) 2016-12-31 2025-03-04 Seyond, 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
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
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
US11947047B2 (en) 2017-01-05 2024-04-02 Seyond, Inc. Method and system for encoding and decoding LiDAR
US12050288B2 (en) 2017-01-05 2024-07-30 Seyond, Inc. 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
US11460554B2 (en) 2017-10-19 2022-10-04 Innovusion, Inc. LiDAR with large dynamic range
US12189058B2 (en) 2017-12-22 2025-01-07 Seyond, Inc. High resolution LiDAR using high frequency pulse firing
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
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
US20220291343A1 (en) * 2018-02-21 2022-09-15 Innovusion, Inc. Lidar detection systems and methods with high repetition rate to observe far objects
US11927696B2 (en) 2018-02-21 2024-03-12 Innovusion, Inc. LiDAR systems with fiber optic coupling
US11782138B2 (en) 2018-02-21 2023-10-10 Innovusion, Inc. LiDAR detection systems and methods with high repetition rate to observe far objects
US11391823B2 (en) 2018-02-21 2022-07-19 Innovusion, Inc. LiDAR detection systems and methods with high repetition rate to observe far objects
US12298399B2 (en) 2018-02-22 2025-05-13 Seyond, Inc. Receive path for LiDAR system
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
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
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
US11860313B2 (en) 2018-06-15 2024-01-02 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US11675053B2 (en) 2018-06-15 2023-06-13 Innovusion, Inc. LiDAR systems and methods for focusing on ranges of interest
US12276759B2 (en) 2018-06-15 2025-04-15 Seyond, Inc. LiDAR systems and methods for focusing on ranges of interest
US11860316B1 (en) 2018-08-21 2024-01-02 Innovusion, Inc. Systems and method for debris and water obfuscation compensation for use in LiDAR systems
US12050269B2 (en) 2018-08-21 2024-07-30 Seyond, 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
US11579300B1 (en) 2018-08-21 2023-02-14 Innovusion, Inc. Dual lens receive path for LiDAR system
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
US11614526B1 (en) 2018-08-24 2023-03-28 Innovusion, 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
US12313788B1 (en) 2018-10-09 2025-05-27 Seyond, Inc. Ultrashort pulses in LiDAR systems
US11686824B2 (en) 2018-11-14 2023-06-27 Innovusion, Inc. LiDAR systems that use a multi-facet mirror
US11644543B2 (en) 2018-11-14 2023-05-09 Innovusion, Inc. LiDAR systems and methods that use a multi-facet mirror
US12158545B2 (en) 2019-01-10 2024-12-03 Seyond, Inc. Lidar systems and methods with beam steering and wide angle signal detection
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
US11567213B2 (en) 2021-02-18 2023-01-31 Innovusion, Inc. Dual shaft axial flux motor for optical scanners
US11422267B1 (en) 2021-02-18 2022-08-23 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
US12146988B2 (en) 2021-04-20 2024-11-19 Innovusion, Inc. Dynamic compensation to polygon and motor tolerance using galvo control profile
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
US12204033B2 (en) 2022-03-25 2025-01-21 Seyond, Inc. Multimodal detection with integrated sensors
US11871130B2 (en) 2022-03-25 2024-01-09 Innovusion, Inc. Compact perception device

Also Published As

Publication number Publication date
JPS5245479B2 (enrdf_load_stackoverflow) 1977-11-16
FR2172409B3 (enrdf_load_stackoverflow) 1976-02-13
JPS4887788A (enrdf_load_stackoverflow) 1973-11-17
FR2172409A1 (enrdf_load_stackoverflow) 1973-09-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930217