EP0418566B1 - Vorrichtung für die Zielerkennung und Abschussauslösung für abzufeuernde Boden-Luft-Minen bei der Hubschrauberbekämpfung - Google Patents

Vorrichtung für die Zielerkennung und Abschussauslösung für abzufeuernde Boden-Luft-Minen bei der Hubschrauberbekämpfung Download PDF

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Publication number
EP0418566B1
EP0418566B1 EP90115901A EP90115901A EP0418566B1 EP 0418566 B1 EP0418566 B1 EP 0418566B1 EP 90115901 A EP90115901 A EP 90115901A EP 90115901 A EP90115901 A EP 90115901A EP 0418566 B1 EP0418566 B1 EP 0418566B1
Authority
EP
European Patent Office
Prior art keywords
infrared sensor
microphone
helicopter
directional
mine
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 - Lifetime
Application number
EP90115901A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0418566A1 (de
Inventor
Curt Reichert
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.)
SenSys AG
Original Assignee
SenSys AG
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Filing date
Publication date
Application filed by SenSys AG filed Critical SenSys AG
Publication of EP0418566A1 publication Critical patent/EP0418566A1/de
Application granted granted Critical
Publication of EP0418566B1 publication Critical patent/EP0418566B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/06—Proximity fuzes; Fuzes for remote detonation operated by sound waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/001—Electric circuits for fuzes characterised by the ammunition class or type
    • F42C11/007—Electric circuits for fuzes characterised by the ammunition class or type for land mines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/02—Proximity fuzes; Fuzes for remote detonation operated by intensity of light or similar radiation

Definitions

  • the present invention relates to a device for target detection and firing for surface-to-fire mines to be fired in helicopter combat with a microphone sensitive to helicopter noise.
  • a surface mine is a defense mine that is fired from the ground, but fights a flying object, such as a helicopter.
  • a device of this type is known from EP-A-0 152 516.
  • a surface-to-air mine is described which has a purely acoustic location device.
  • This locating device has four electroacoustic transducers which are designed as microphones with all-round characteristics.
  • Acoustic devices for triggering weapons are also described in DE-A-31 01 722 and FR-A-2 495 762.
  • the device described in the first-mentioned publication has a sound pickup, for example a microphone or a piezo element.
  • the last-mentioned publication relates to an ignition circuit, in particular for a mine, which has an acoustic detector and a further detector.
  • the further detector can be a proximity detector.
  • the invention has for its object to provide a device for target detection and launch of such a surface-air mine, which is characterized by a particularly great simplicity and reliability and low energy consumption.
  • the device according to the invention combines the advantages of a mine that is autonomous and can be placed inconspicuously with modern electronics and sensors and consequently makes this mine usable in the third dimension.
  • the surface-air mine equipped with a device according to the invention is set up rigidly. There is no tracking. It is therefore necessary to set up a few mines next to one another with different firing directions in order to cover an air space to a predetermined extent. The density of the lineups and the spreading effect of the floor determine the effectiveness of the mine belt, which functions in the third dimension.
  • the electronic evaluation device splits the signals generated by the microphone and / or infrared sensor into different branches, evaluates them separately, feeds them to a comparator and then to a logical link.
  • the electronic evaluation device splits the signals generated by the microphone into a branch of 5-40 Hz and a branch of 200-1000 Hz.
  • the first range corresponds to a sound frequency range (infrasound), which is caused by the rotating rotor of a helicopter, while the machine noise of the helicopter is in the second range. Only if there are signals from both frequency ranges and the infrared sensor responds, a launch is effected.
  • the evaluation electronics split into several areas, and the mine is only ignited if signals are generated which fall within these frequency ranges characteristic of helicopters.
  • the latter has a radial directional lobe, in the direction of which the surface-air mine can be fired.
  • the term "directional lobe" denotes the reception characteristic of an infrared sensor or an aggregate of infrared sensors. It is more or less club-shaped in the functional area of the device according to the invention. The sensitivity increases towards the axis.
  • the infrared sensor must ensure a suitable tripping behavior with a directional characteristic.
  • the helicopter or its infrared source (turbine) appears quite small compared to the mine cone.
  • An infrared detector the sensitivity of which is directly matched to the scattering cone, therefore only gives a relatively weak infrared signal.
  • a certain susceptibility to faults e.g. moving clouds
  • the microphone used in accordance with the invention there is the condition that it is sensitive to helicopter noises, especially those in the infrasound range (caused by rotor rotation). Such a microphone does not need to have a special directional characteristic.
  • a directional microphone with a conical acoustic directional characteristic directed at the target area for the solution according to the invention, which microphone defines a target field with its acoustic directional characteristic.
  • the directional lobe of the infrared sensor which is narrow compared to the acoustic directional characteristic, then preferably runs in the center of the target field of the acoustic directional characteristic.
  • the term “acoustic directional characteristic” denotes the reception characteristic of a directional microphone. In the functional area in this embodiment of the invention, it is connected more or less conically, the sensitivity increasing towards the center of the cone.
  • FIG. 3 shows a perspective view of a ground-air mine 10 similar to FIG. 1, a particularly preferred embodiment of an infrared sensor (not shown) being used in this exemplary embodiment.
  • This infrared sensor has a plurality of active cones 3, which form segments of maximum sensitivity, which are arranged in an overall active cone 20.
  • Such a sensitivity distribution can be achieved by segmented infrared lenses or mirrors.
  • the gaps between the segments 30 lead to the probability that the helicopter will not be detected when passing through the cone. This probability increases with increasing distance from the mine.
  • Such behavior is very desirable because the effectiveness of the mine is limited to a certain distance (for example 100 m). This provides a certain level of protection against false triggering caused by helicopters flying at great heights.
  • FIG. 4 shows a block diagram of the evaluation electronics which are used in the embodiments of FIGS. 1 to 3.
  • the device comprises a microphone 40, the electrical signals generated as a function of the helicopter noise are split up into different branches by filters 41, 41. In this embodiment, two filters are shown; however, further subdivisions can also be made.
  • the split signals are then evaluated separately and fed to a logic element 43 via respective comparators 42.
  • FIG. 4 also shows an infrared sensor 44. Its signals are also fed to the link 43 via a filter 45 and a comparator 46. Here, too, a split into several branches can take place, as is indicated in dashed lines.
  • the link 43 triggers the ignition device of the mine when there are signals from the two branches of the microphone when a signal from the infrared sensor is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
EP90115901A 1989-08-22 1990-08-20 Vorrichtung für die Zielerkennung und Abschussauslösung für abzufeuernde Boden-Luft-Minen bei der Hubschrauberbekämpfung Expired - Lifetime EP0418566B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3927663 1989-08-22
DE3927663A DE3927663C3 (de) 1989-08-22 1989-08-22 Vorrichtung für die Zielerkennung und Abschußauslösung für abzufeuernde Boden-Luftminen bei der Hubschrauberbekämpfung

Publications (2)

Publication Number Publication Date
EP0418566A1 EP0418566A1 (de) 1991-03-27
EP0418566B1 true EP0418566B1 (de) 1994-05-18

Family

ID=6387603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115901A Expired - Lifetime EP0418566B1 (de) 1989-08-22 1990-08-20 Vorrichtung für die Zielerkennung und Abschussauslösung für abzufeuernde Boden-Luft-Minen bei der Hubschrauberbekämpfung

Country Status (6)

Country Link
US (1) US5147977A (es)
EP (1) EP0418566B1 (es)
AT (1) ATE105931T1 (es)
DE (2) DE3927663C3 (es)
ES (1) ES2056320T3 (es)
ZA (1) ZA906603B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133543C2 (de) * 1991-10-10 2001-12-13 Diehl Stiftung & Co Mine zur Hubschrauberabwehr
DE19906970C2 (de) 1999-02-19 2003-03-27 Rheinmetall W & M Gmbh Aufklärungssonde
US7957225B2 (en) * 2007-12-21 2011-06-07 Textron Systems Corporation Alerting system for a facility
US10741037B2 (en) * 2018-05-16 2020-08-11 Avaya Inc. Method and system for detecting inaudible sounds

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902172A (en) * 1962-03-29 1975-08-26 Us Navy Infrared gated radio fuzing system
GB1225647A (es) * 1967-08-19 1971-03-17
FR1590594A (es) * 1968-05-17 1970-04-20
FR2205186A5 (es) * 1972-11-02 1974-05-24 Lacroix E
DE2336040C3 (de) * 1973-07-14 1980-06-19 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Abwehrsystem mit mehreren Geschossen
DE2829239C1 (de) * 1978-07-04 1983-06-09 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Verfahren und Anordnung zur Erkennung eines anfliegenden Hubschraubers zum Zweck einer Abwehraktion
DE3045837C2 (de) * 1980-12-05 1984-01-05 Diehl GmbH & Co, 8500 Nürnberg Zündschaltung für Sprengkörper
DE3101722C2 (de) * 1981-01-21 1983-10-06 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Vorrichtung für die Waffenauslösung
DE3140728C2 (de) * 1981-10-14 1985-02-07 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Einrichtung zur Bekämpfung von Zielen, wie Panzern oder dgl.
FR2541444A1 (fr) * 1982-06-25 1984-08-24 Thomson Csf Dispositif de detection a distance du type mine et systeme de tir comportant de tels dispositifs
DE3326748A1 (de) * 1983-07-25 1985-02-07 Fried. Krupp Gmbh, 4300 Essen Mine
FR2599860B1 (fr) * 1984-03-22 1989-12-01 France Etat Armement Procede et dispositif pour la detection acoustique passive d'aeronefs, notamment d'helicopteres
DE3538785A1 (de) * 1985-10-31 1987-05-07 Diehl Gmbh & Co Mine mit weck- und ausloesesensoren
IL86525A0 (en) * 1988-05-27 1988-11-15 Cohen David Promixity detector mine system
DE3837483A1 (de) * 1988-11-04 1990-05-10 Diehl Gmbh & Co Motorisch ausrichtbare mine

Also Published As

Publication number Publication date
DE3927663C2 (es) 1993-04-22
US5147977A (en) 1992-09-15
ZA906603B (en) 1991-06-26
EP0418566A1 (de) 1991-03-27
DE59005728D1 (de) 1994-06-23
DE3927663A1 (de) 1991-03-14
ES2056320T3 (es) 1994-10-01
DE3927663C3 (de) 1998-11-12
ATE105931T1 (de) 1994-06-15

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