GB9506936D0 - Improvement to radars and sonars - Google Patents

Improvement to radars and sonars

Info

Publication number
GB9506936D0
GB9506936D0 GBGB9506936.5A GB9506936A GB9506936D0 GB 9506936 D0 GB9506936 D0 GB 9506936D0 GB 9506936 A GB9506936 A GB 9506936A GB 9506936 D0 GB9506936 D0 GB 9506936D0
Authority
GB
United Kingdom
Prior art keywords
installations
channels
sonars
radars
radar
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
GBGB9506936.5A
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.)
BERZINS GUNARS
Original Assignee
BERZINS GUNARS
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 BERZINS GUNARS filed Critical BERZINS GUNARS
Priority to GBGB9506936.5A priority Critical patent/GB9506936D0/en
Priority to GB9508081A priority patent/GB2299722A/en
Publication of GB9506936D0 publication Critical patent/GB9506936D0/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
    • G01S7/02—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
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/86—Combinations of sonar systems with lidar systems; Combinations of sonar systems with systems not using wave reflection
    • 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
    • G01S7/0232—Avoidance by frequency multiplex
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9324—Alternative operation using ultrasonic 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9325—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoons
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
    • 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
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A problem that can affect radars and sonars arises from the fact that in addition to echoes of their own transmissions, installations can receive strong interference from similar installations when their antennas point towards each other from substantially opposite directions. According to the present invention the problem is solved by providing a number of frequency bands ("channels") and a method whereby each radar or sonar automatically selects the appropriate channel for minimum interference, in accordance with the direction in which its beam is pointing. In one embodiment of the invention there are four channels, common to all the installations and corresponding to the four principal directions of the compass. A data link 6 from compass direction determining device 8 to radar 5 ensures that whenever the antennas of two installations point towards each other, the installations always use different channels, thereby solving the problem.
GBGB9506936.5A 1995-04-04 1995-04-04 Improvement to radars and sonars Pending GB9506936D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB9506936.5A GB9506936D0 (en) 1995-04-04 1995-04-04 Improvement to radars and sonars
GB9508081A GB2299722A (en) 1995-04-04 1995-04-20 Improvement to radars and sonars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9506936.5A GB9506936D0 (en) 1995-04-04 1995-04-04 Improvement to radars and sonars

Publications (1)

Publication Number Publication Date
GB9506936D0 true GB9506936D0 (en) 1995-05-24

Family

ID=10772484

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9506936.5A Pending GB9506936D0 (en) 1995-04-04 1995-04-04 Improvement to radars and sonars
GB9508081A Withdrawn GB2299722A (en) 1995-04-04 1995-04-20 Improvement to radars and sonars

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9508081A Withdrawn GB2299722A (en) 1995-04-04 1995-04-20 Improvement to radars and sonars

Country Status (1)

Country Link
GB (2) GB9506936D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115398263A (en) * 2020-04-28 2022-11-25 维宁尔瑞典公司 Radar system for interference avoidance based on vehicle heading

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9602250D0 (en) * 1996-02-05 1996-04-03 Secr Defence Collision warning system
DE10119289A1 (en) * 2001-04-20 2002-10-24 Adc Automotive Dist Control Radar system, for use in motor vehicle, is operated by setting transmission frequency to frequency deviating by constant frequency difference when interference is detected
DE102004054668B4 (en) * 2004-11-12 2020-12-03 HELLA GmbH & Co. KGaA Radar measuring device and control device with a radar measuring device for a motor vehicle
JP2010002272A (en) * 2008-06-19 2010-01-07 Toyota Motor Corp Axis adjustment method and axis adjustment device for radar device
CN117970333A (en) 2019-12-25 2024-05-03 华为技术有限公司 Method, device and storage medium for transmitting detection signal
EP3869221B1 (en) 2020-02-20 2025-12-31 Magna Electronics Sweden AB RADAR SYSTEM WITH SUBBANDS
FR3127584B1 (en) * 2021-09-30 2023-11-24 Ecole Nat De Laviation Civile Enac Method of transmitting radio signals by an on-board radar within a vehicle, device and corresponding computer program
EP4657759A4 (en) * 2023-02-21 2026-03-18 Shenzhen Yinwang Intelligent Technology Co Ltd SIGNAL TRANSMISSION METHOD AND ASSOCIATED DEVICE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL139602B (en) * 1964-05-21 1973-08-15 Hollandse Signaalapparaten Bv RADAR SYSTEM.
GB1526545A (en) * 1977-07-15 1978-09-27 Ferranti Ltd Radar systems
GB2048600A (en) * 1979-04-18 1980-12-10 Kopis F B Anti-collision vehicle radar system
US5280288A (en) * 1992-08-14 1994-01-18 Vorad Safety Systems, Inc. Interference avoidance system for vehicular radar system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115398263A (en) * 2020-04-28 2022-11-25 维宁尔瑞典公司 Radar system for interference avoidance based on vehicle heading

Also Published As

Publication number Publication date
GB9508081D0 (en) 1995-06-07
GB2299722A (en) 1996-10-09

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