EP1119776A1 - Appareil radar - Google Patents

Appareil radar

Info

Publication number
EP1119776A1
EP1119776A1 EP99934676A EP99934676A EP1119776A1 EP 1119776 A1 EP1119776 A1 EP 1119776A1 EP 99934676 A EP99934676 A EP 99934676A EP 99934676 A EP99934676 A EP 99934676A EP 1119776 A1 EP1119776 A1 EP 1119776A1
Authority
EP
European Patent Office
Prior art keywords
target
radar
radar device
magnifying glass
image
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Withdrawn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
EP99934676A
Other languages
German (de)
English (en)
Inventor
Wilfried Frerichs
Peter STÖCKIGT
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.)
Wartsila SAM Electronics GmbH
Original Assignee
STN Atlas Marine Electronics 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 STN Atlas Marine Electronics GmbH filed Critical STN Atlas Marine Electronics GmbH
Publication of EP1119776A1 publication Critical patent/EP1119776A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • G01S7/04—Display arrangements
    • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
    • G01S7/24—Cathode-ray tube displays or other two dimensional or three-dimensional displays the display being orientated or displaced in accordance with movement of object carrying the transmitting and receiving apparatus, e.g. true-motion 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
    • 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
    • G01S7/04—Display arrangements
    • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
    • G01S7/064—Cathode-ray tube displays or other two dimensional or three-dimensional displays using a display memory for image processing
    • G01S7/066—Cathode-ray tube displays or other two dimensional or three-dimensional displays using a display memory for image processing with means for showing the history of the radar trails, e.g. artificial remanence

Definitions

  • the invention relates to a radar device of the type defined in the preamble of claim 1.
  • the targets detected by the radar are automatically tracked.
  • Course and speed information is superimposed in graphic form on the radar image and output in alphanumeric form.
  • a collision calculation determines whether a moving target is dangerous to your ship. In such a case, an alarm will sound and the target data will automatically appear on the screen.
  • the navigator To avoid a collision, the navigator must observe the target to determine whether it is maneuvering or not.
  • the detection of a risk of collision is usually carried out in the so-called "relative display” (relative motion), since it is possible to work with the "stationary bearing” method.
  • the invention has for its object to offer a help to the navigator in a radar device of the type mentioned at the outset, which enables him to better recognize maneuvers of a target and thus to better estimate the target behavior without a - albeit temporary - loss of information regarding. of the usual scenario has to be accepted.
  • the radar device has the advantage that, in addition to the radar image, the representation of the image section around the tracked target is enlarged in a magnifying window arranged next to the radar picture and by carrying the picture section with the aim of observing the maneuvering behavior of the tracked target very precisely and at the same time the scenario in which the radar image can be continuously kept up to date.
  • the navigator thus receives reliable information about possible collision possibilities very quickly and without the need for further preparation and considerations and can take suitable measures at an early stage.
  • the magnifying glass window offers the possibility of displaying the image section in a mode other than that of the radar image, for example in true motion, while the radar image is visible in the relative motion mode, so that the navigator can simultaneously perform the maneuver of the ship that is independent of his Target as well as the impact of this maneuver on the collision course (change in the bearing) and can make his navigational decisions much earlier.
  • the current target position as well as previous target positions are shown in the radar image and in the magnifying glass window as an afterglow trail characterizing the seniority.
  • Such trailing trails which clarify the immediate history of the current target position, bring the navigator a considerable gain in information about the target behavior.
  • a particularly impressive way of displaying such an afterglow trail is obtained according to a further embodiment of the invention in that the current target position is visible by activating a predetermined number of pixels covering a contiguous area and the temporally preceding target positions with a decreasing number of pixels with seniority can be displayed within this area.
  • target positions are shown with decreasing density depending on their seniority or age. The older the target position displayed, the less closed is the area marking the target position.
  • the target positions in the magnifying glass are shown in an earth-fixed reference system (true motion), which is shifted with the target movement so that the current target position is always at the same point, preferably in the middle, of the Magnifying glass remains.
  • a display allows the target maneuvers to be recognized and tracked very precisely.
  • a collision computer which compares the course of the ship of one's own with the course of the at least one pursued target and generates a signal if there is a risk of collision.
  • the computer signal initiates the display of the image section in the magnifying window in relation to the target causing the collision.
  • This collision calculator releases the navigator from detecting the target that is on a collision course.
  • the signal issued by the computer in the event of a collision not only gives the navigator a warning of the possible collision, but also automatically switches the image content of the magnifying glass display to the target that is endangering the ship of his own and is on a collision course.
  • 1 shows a block diagram of a radar device
  • Fig. 2 is an enlarged view of and 3 on the screen of the radar in
  • the radar device shown in the block diagram in FIG. 1 has, in a known manner, a rotating radar antenna 10 with which targets are detected according to the principle of retroreflection detection.
  • Each retroreflection or radar signal received with the antenna 10 is fed to a receiving device 11, there accordingly processed and reaches an image processor 12, which represents the position of the target in a radar image 14 shown on a screen 13.
  • an image processor 12 represents the position of the target in a radar image 14 shown on a screen 13.
  • the positions of the ship carrying the radar device hereinafter referred to as own vehicle or own ship, are also shown in the radar image 14.
  • the radar device has a device 15 for automatic target tracking and a collision computer 16, which compares the course of the ship of one's own with the course of the targets being tracked and generates a signal if there is a risk of collision.
  • a magnifying glass window 17 is visible on the radar or screen 13, in which an image section of the radar image 14 is shown enlarged around a tracked target. This image section in the magnifying glass window 17 is changed depending on the movement of the target.
  • a radar image 14 and a magnifying glass window 17 are shown enlarged in FIG. 2 for an arbitrarily chosen scenario.
  • the radar image 14 is shown in the so-called relative motion mode, that is to say the positions of detected targets are shown in a reference system which relates to the own ship. Therefore, the proprietary ship, identified by 20 in FIG. 2, is always on the radar image 14 at a fixed point, here in the middle of the radar image 14.
  • the radar image of FIG. 2 three different targets are detected by the radar device, which means the automatic target tracking device 15 can be tracked over a longer period of time.
  • the radar image 14 is renewed, the current position of the targets 21 to 23 being shown on the one hand, and previous target positions of the targets 21 to 23 on the other hand as an afterglow trail 24 characterizing the seniority are shown, so that with the help of this afterglow trail 24 the positions of the targets 21 to 23, which change over time, can be easily surveyed.
  • the display of the afterglow trail 24 at the individual targets 21 to 23 takes place in such a way that the current target position of the targets 21-23 by activating a predetermined number of pixels covering a coherent area on the radar image 14 and the temporally preceding target positions with one with the Priority decreasing number of pixels are visible within this area.
  • This is illustrated in the radar image 14 of FIG. 2 in that the current target position is covered with a black area which is interrupted point by point at the previous target positions. The older the target position shown, the larger the cut-outs in the closed area, so that a dot pattern is created for the previous target positions, which becomes lighter as the target position ages.
  • the collision computer 16 compares the course of the own ship with the course of the pursued targets and generates a signal if there is a risk of a collision.
  • the signal is used to trigger the representation of the image section in the magnifying glass window 17 in relation to the target causing the risk of collision.
  • a target running on a collision course is distinguished by a so-called standing bearing. This standing bearing is given with respect to target 23. Accordingly, an image section around the target 23 lying on the collision course is now shown enlarged in the magnifying glass window 17, and this image section is changed as a function of the target movement, in other words, the magnifying glass window is displaced with the target 23.
  • the target positions of the target 23 are shown in the same way as in the radar image 14 in a reference system related to the vehicle 20.
  • the magnifying glass 17, more precisely, the image section in the magnifying window 17, is shifted as a function of the target movement, i.e. is carried along with the target 23, the current position of the target 23 always remains in the same position within the magnifying window 17, and the afterglow trail 24 extends with increasing history.
  • the navigator can use the length of the afterglow trail 24 to estimate the speed of the target 23 traveling on a collision course.
  • the navigator now has the option of switching the representation of the image section in the magnifying window 17 into the so-called true motion mode, regardless of the type of representation in which the radar image 14 is displayed.
  • This switching of the magnifying glass is illustrated in FIG. 3. While the radar image 14 is still shown in the relative motion mode, the target positions of the target 23 are shown in the magnifying window 17 in relation to an earth-fixed reference system, which e.g. can be done in that the natural speed of the ship is compensated in the radar signals received by the radar antenna 10.
  • the reference system is shifted with the movement of the target 23, so that the current target position always remains at the same location within the magnifying glass window 17, here in the middle of the magnifying glass window 17.
  • This representation has the advantage that the navigator in the magnifying window 17 can immediately recognize a maneuver carried out by the target 23, so that he can adjust his own navigation accordingly.

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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

L'invention concerne un appareil radar présentant un écran (13) sur lequel s'affiche une image radar (14) qui illustre les positions d'un véhicule propre (20) portant l'appareil radar et de véhicules extérieurs ou de cibles (21-23) d'un système de référence. L'appareil comprend également un dispositif (15) permettant de suivre automatiquement au moins une cible (21-23). Une fenêtre loupe (17) s'affiche à l'écran (13) pour aider un navigateur à mieux identifier et à évaluer plus tôt les manoeuvres d'une cible (23) sans qu'il y ait de perte d'informations par rapport au scénario habituel. Cette fenêtre contient une partie agrandie de l'image radar (14) autour de la cible suivie (23), cette partie étant modifiée en fonction du mouvement de la cible.
EP99934676A 1998-09-29 1999-07-13 Appareil radar Withdrawn EP1119776A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19844620 1998-09-29
DE19844620A DE19844620A1 (de) 1998-09-29 1998-09-29 Radargerät
PCT/EP1999/004912 WO2000019233A1 (fr) 1998-09-29 1999-07-13 Appareil radar

Publications (1)

Publication Number Publication Date
EP1119776A1 true EP1119776A1 (fr) 2001-08-01

Family

ID=7882637

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99907608A Expired - Lifetime EP1118017B1 (fr) 1998-09-29 1999-03-08 Procede et dispositif permettant de produire une trainee d'impulsion
EP99934676A Withdrawn EP1119776A1 (fr) 1998-09-29 1999-07-13 Appareil radar

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99907608A Expired - Lifetime EP1118017B1 (fr) 1998-09-29 1999-03-08 Procede et dispositif permettant de produire une trainee d'impulsion

Country Status (6)

Country Link
US (1) US6522289B1 (fr)
EP (2) EP1118017B1 (fr)
JP (1) JP4351392B2 (fr)
DE (2) DE19844620A1 (fr)
NO (1) NO20011531L (fr)
WO (2) WO2000019232A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003337170A (ja) * 2002-03-14 2003-11-28 Furuno Electric Co Ltd レーダ信号処理装置およびレーダ
WO2006072254A1 (fr) * 2005-01-10 2006-07-13 Navico Danmark A/S Historique et trainee de cibles pour systeme radar numerique
US20070027981A1 (en) * 2005-07-27 2007-02-01 Giovanni Coglitore Computer diagnostic system
JP5654223B2 (ja) * 2009-09-11 2015-01-14 古野電気株式会社 画像処理装置、これを搭載したレーダ装置、画像処理方法及び画像処理プログラム
JP5574650B2 (ja) * 2009-09-11 2014-08-20 古野電気株式会社 画像処理装置、これを搭載したレーダ装置、画像処理方法及び画像処理プログラム
JP5477051B2 (ja) * 2010-03-01 2014-04-23 株式会社デンソー 超音波流量計
FR2974421B1 (fr) * 2011-04-21 2014-02-21 Thales Sa Procede pour detecter, sur plusieurs tours d'antenne, des cibles lentes noyees dans le fouillis radar avec un radar mobile a antenne rotative
JP6571545B2 (ja) * 2016-01-19 2019-09-04 パナソニック株式会社 物体検出装置および物体検出方法
FR3097651B1 (fr) 2019-06-20 2021-06-18 Safran Electronics & Defense Procédé de surveillance de l’environnement d’un véhicule

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803596A (en) * 1970-02-27 1974-04-09 Smith Industries Ltd Televised true-motion radar with track history
US3742494A (en) * 1970-05-22 1973-06-26 Smiths Industries Ltd Information display arrangements
US3697986A (en) * 1970-10-23 1972-10-10 Sperry Rand Corp Collision avoidance system
US3882502A (en) * 1974-01-17 1975-05-06 Us Navy Crt multiple-scan display apparatus and method providing target discrimination
US4162494A (en) * 1978-04-28 1979-07-24 Burroughs Corporation Method and apparatus for displaying radar video registered with computer generated data on a television monitor
US4208657A (en) * 1978-08-16 1980-06-17 Raytheon Company Electronic automatic plotter
DE2924176C2 (de) 1979-06-15 1982-11-18 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Darstellung von Rückstrahlortungssignalen zur Ausübung des Verfahrens
FR2535465B1 (fr) * 1982-10-27 1985-09-13 Thomson Csf Procede de traitement de la remanence artificielle dans un transformateur numerique d'images
JPS60157700A (ja) * 1984-01-27 1985-08-17 日立造船株式会社 船舶衡突予防援助装置
US4829308A (en) 1985-10-07 1989-05-09 Raytheon Company Raster display system
FR2614994B1 (fr) * 1987-05-07 1989-06-30 Thomson Csf Procede et dispositif de visualisation de plusieurs images radar en une mosaique unique
JPH0627801B2 (ja) * 1988-06-01 1994-04-13 古野電気株式会社 航跡表示装置
JP2992108B2 (ja) * 1991-03-25 1999-12-20 日本無線株式会社 レーダ映像表示方法及び装置
FR2692679B1 (fr) 1992-06-18 1995-01-13 Sofretec Dispositif de visualisation d'au moins une image délivrée notamment par un radar.
US5664084A (en) * 1995-05-18 1997-09-02 Motorola, Inc. Method and apparatus for visually correlating temporal relationships
JP3628386B2 (ja) * 1995-08-08 2005-03-09 古野電気株式会社 監視画像表示装置
DE19546507A1 (de) * 1995-12-13 1997-06-19 Daimler Benz Ag Fahrzeug-Navigationssystem und Signalverarbeitungsverfahren für ein solches Navigationssystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0019233A1 *

Also Published As

Publication number Publication date
JP2002525639A (ja) 2002-08-13
WO2000019232A8 (fr) 2000-06-15
DE59911380D1 (de) 2005-02-03
NO20011531L (no) 2001-05-14
EP1118017B1 (fr) 2004-12-29
DE19844620A1 (de) 2000-05-11
NO20011531D0 (no) 2001-03-26
WO2000019233A1 (fr) 2000-04-06
WO2000019232A1 (fr) 2000-04-06
EP1118017A1 (fr) 2001-07-25
US6522289B1 (en) 2003-02-18
JP4351392B2 (ja) 2009-10-28

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