EP0157397B1 - Arrangement to determine the impact point, the velocity and the angle of incidence of a projectile hitting a target at supersonic velocity - Google Patents

Arrangement to determine the impact point, the velocity and the angle of incidence of a projectile hitting a target at supersonic velocity Download PDF

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Publication number
EP0157397B1
EP0157397B1 EP85103876A EP85103876A EP0157397B1 EP 0157397 B1 EP0157397 B1 EP 0157397B1 EP 85103876 A EP85103876 A EP 85103876A EP 85103876 A EP85103876 A EP 85103876A EP 0157397 B1 EP0157397 B1 EP 0157397B1
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Prior art keywords
sensors
projectile
arrangement according
planes
subsequent
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EP85103876A
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German (de)
French (fr)
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EP0157397A2 (en
EP0157397A3 (en
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Paul Drewell
Dieter Kriz
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Drello Ing Paul Drewell & Co KG GmbH
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Drello Ing Paul Drewell & Co KG GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J5/00—Target indicating systems; Target-hit or score detecting systems
    • F41J5/06—Acoustic hit-indicating systems, i.e. detecting of shock waves

Definitions

  • the invention relates to an arrangement for determining the hit position and / or the speed and / or the impact angle of a projectile hitting a target at supersonic speed, with several acoustic sensors being arranged on the target in two planes parallel to one another and to the target surface and on each of the two Levels are distributed so that they encompass the expected trajectory of the projectile and emit signals which are fed to a computer which, according to the chronological order and the time interval in which the signals are emitted by the individual sensors, the storage of the projectile from Target point calculated.
  • a computer which, according to the chronological order and the time interval in which the signals are emitted by the individual sensors, the storage of the projectile from Target point calculated.
  • targets are mostly used, which are printed with rings and sector boundaries and are either observed directly or transported to the shooter after a series of shots. In both cases it is necessary to replace the target after a limited number of shots.
  • hit positions for further processing of the hit images must be tapped from the disk by means of a computer and entered into the computer.
  • a device for determining the direction of the projectile in which the projectile penetrates two levels covered with a substance, thereby generating a sound wave in the substance, which is transmitted in the substance to acoustic sensors, which according to the address different running times and feed their signals to a computer.
  • the sensors do not respond to the head wave of the projectile but to a sound wave generated by the projectile in the substance.
  • the device also has the disadvantage that, for reasons of measurement accuracy, the substance must be homogeneously and isotropically tensioned. Furthermore, the projectile loses kinetic energy when the substance penetrates, which makes measurement more difficult.
  • the measurement is also adversely affected by other acoustic influences that generate sound waves in the substance, such as the head wave of the projectile, and finally the substance must be renewed after each penetration of even one storey because the homogeneity is disturbed. This makes the use of machine guns impossible.
  • the invention has for its object to provide an arrangement of the type mentioned, which allows to determine and evaluate a precise position of the points in the plane formed by the acoustic sensors and with a high firing sequence even at an oblique shot the projectile penetrates these levels.
  • the planes receiving the sensors merely represent imaginary, ideal planes, so that the sensors can only be influenced by head waves propagating in air when another medium is eliminated.
  • the sensors are arranged in each of the two levels on a frame encompassing the trajectory, the two frames advantageously being combined to form a body.
  • the frames or the structure are rectangular and are equipped with sensors on each side.
  • the arrangement according to the invention can also serve to detect the trajectory not only in front of the target but over its entire length. This is done in that sensors are arranged in two planes at each measuring point at measuring points arranged at predetermined intervals along the trajectory of the projectile, the planes being at least approximately perpendicular to the trajectory and the sensors encompassing the trajectory. This makes it possible to record the values on the trajectory that can be measured with the arrangement according to the invention.
  • FIGS. 1 and 2 show an exemplary embodiment of the arrangement according to the invention in a partially schematic representation, but for reasons of clarity only those for measuring the vertical one Deviation of the hit position required sensors are shown.
  • Figure 1 shows a structure 1, which includes the front frame 2 and the rear frame 3.
  • the sensors are labeled So 'and Su' on the front frame 2 and So and Su on the rear frame 3.
  • the vertical distance between the upper and lower side of each frame and thus between the sensors of the pair So 'and Su' as well as So and Su is S, the horizontal distance between the frame and thus between the sensors of the pair So and So 'as well as Su and Su 'is denoted by b.
  • S the distance between the top and bottom of the frame, i.e. the inside width of the frame.
  • ⁇ the angle between the floor trajectory and the perpendicular to the hit image level.
  • each side of the two frames is equipped with a plurality of sensors which are connected in parallel or in series, either directly or via amplifiers.
  • the hit position, speed and angle of impact are advantageously calculated by an EDP system.
  • the speed of sound as well as the wind speed and direction can be entered into the computer.
  • the speed of sound can be measured in the measuring section in a manner known per se.
  • Wind speed and direction are also determined and measured in a manner known per se.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

To determine the impact point and/or velocity and/or angle of incidence of projectiles hitting a target at supersonic speed, independently of the angle between the projectile trajectory and the perpendicular to the impact image plane, there are frames which are arranged in two planes parallel to one another and to the target surface and to the sides of which are attached acoustic sensors surrounding the expected flight trajectories of the projectiles. The impact point, projectile velocity and angle of incidence can be calculated from the sequence and difference in transit time of the electrical signals triggered in the sensors by the bow wave of the projectile. <IMAGE>

Description

Gegenstand der Erfindung ist eine Anordnung zur Ermittlung der Trefferlage und/oder der Geschwindigkeit und/oder des Auftreffwinkels eines mit Überschallgeschwindigkeit auf ein Ziel treffenden Geschosses wobei am Ziel jeweils mehrere akustische Sensoren in zwei zueinander und zur Zielfläche parallelen Ebenen angeordnet sind und auf jeder der beiden Ebenen so verteilt sind, daß sie die zu erwartende Flugbahn des Geschosses umgreifen und Signale abgeben, die einem Rechner zugeführt werden, der nach der zeitlichen Reihenfolge und dem zeitlichen Abstand, in dem die Signale von den einzelnen Sensoren abgegeben werden, die Ablage des Geschosses vom Zielpunkt errechnet. Eine derartige Anordnung ist in der US―A―3445808 beschrieben.The invention relates to an arrangement for determining the hit position and / or the speed and / or the impact angle of a projectile hitting a target at supersonic speed, with several acoustic sensors being arranged on the target in two planes parallel to one another and to the target surface and on each of the two Levels are distributed so that they encompass the expected trajectory of the projectile and emit signals which are fed to a computer which, according to the chronological order and the time interval in which the signals are emitted by the individual sensors, the storage of the projectile from Target point calculated. Such an arrangement is described in US ― A ― 3445808.

Zur Ermittlung der Trefferlage von Geschossen werden zumeist Zielscheiben verwendet, die mit Ringen und Sektorenbegrenzungen bedruckt sind und entwerder direkt beobachtet oder nach einer Schußserie zum Schützen transportiert werden. In beiden Fällen ist ein Auswechseln der Scheibe nach einer begrenzten Zahl der Schüsse erforderlich. Für die kommerzielle Anwendung ergibt sich weiter der Nachteil, daß die Trefferlagen für die weitere Verarbeitung der Trefferbilder mittels Rechner von der Scheibe abgegriffen und in den Rechner eingegeben werden müssen.To determine the hit position of projectiles, targets are mostly used, which are printed with rings and sector boundaries and are either observed directly or transported to the shooter after a series of shots. In both cases it is necessary to replace the target after a limited number of shots. For commercial use, there is also the disadvantage that the hit positions for further processing of the hit images must be tapped from the disk by means of a computer and entered into the computer.

Es besteht daher der Wunsch nach einer Anordnung, die die Trefferlage unmittelbar als elektrische Größe, möglichst in digitaler Form liefert. Hierzu sind verschiedene Vorschläge gemacht worden. So gibt es fotoelektrische Anordnungen bei denen das Geschoß durch eine Lichtebene fliegt, die durch entsprechende Empfänger so aufgeteilt ist, daß der Ort an dem das Geschoß durchtritt, genügend genau erfaßt werden kann. Solche Anordnungen sind aber sehr aufwendig, ihre Verwendung im Freien macht Schwierigkeiten.There is therefore a desire for an arrangement that delivers the hit position directly as an electrical quantity, if possible in digital form. Various proposals have been made for this. There are photoelectric arrangements in which the projectile flies through a light plane which is divided by appropriate receivers in such a way that the location at which the projectile passes can be detected with sufficient accuracy. Such arrangements are very expensive, their use outdoors creates difficulties.

Weiterhin ist es bekannt, die von Geschossen erzeugte Kopfwelle mit mehreren akustischen Sensoren aufzunehmen. Solche Anordnungen arbeiten arbeiten aber nur dann einwandfrei, wenn die Flugbahn des Geschosses genau senkrecht auf der Ebene steht in der die Sensoren eingebaut sind. Diese Voraussetzung ist aber im praktischen Schießbetrieb nicht gegeben, da die Flugbahn des Geschosses infolge der Schwerkraft gekrümmt ist, sodaß sie am Ziel eine Neigung nach unten hat. Weiterhin können Abweichungen dadurch verursacht werden, daß die virtuelle Trefferbildebene nicht genau senkrecht zur Ziellinie liegt, weil die Anordnung nicht genau ausgerichtet ist oder schräg auf die Scheibe geschossen wird. Solche kleinen Abweichungen (unter 1°) können unzulässige Fehler der Trefferanzeige verursachen. Aus Figur 3 ist ersichtlich, in wie starkem Maße schon ein kleiner Winkel ψ zwischen der Geschoßbahn und der Senkrechten auf die Trefferbildebene auf die Ablage A s des Geschosses zum Ziel einwirkt.Furthermore, it is known to record the head wave generated by projectiles with several acoustic sensors. Such arrangements only work properly if the trajectory of the projectile is exactly perpendicular to the plane in which the sensors are installed. However, this requirement does not exist in practical shooting operations, since the trajectory of the projectile is curved due to gravity, so that it has a downward slope at the target. Furthermore, deviations can be caused by the fact that the virtual hit image plane is not exactly perpendicular to the target line because the arrangement is not exactly aligned or is shot obliquely at the target. Such small deviations (below 1 °) can cause impermissible errors in the hit display. It can be seen from FIG. 3 to what extent a small angle ψ between the projectile track and the vertical on the hit image plane affects the storage A s of the projectile to the target.

Zwar ist aus der US―PS 34 45 808 eine Vorrichtung zur Ermittlung der Geschoßrichtung bekannt bei der das Geschoß zwei mit einer Substanz bespannte Ebenen durchschlägt, dabei in der Substanz eine Schallwelle erzeugt, die in der Substanz an akustische Sensoren weitergeleitet wird, die nach der unterschiedlichen Laufzeit ansprechen und ihre Signale einem Rechner zuführen. Hier sprechen die Sensoren also nicht auf die Kopfwelle des Geschosses an sonder auf eine von dem Geschoß in der Substanz erzeugte Schallwelle. Die Vorrichtung hat weiter den Nachteil, daß aus Gründen der Meßgenauigkeit die Substanz in sich homogen und isotrop gespannt sein muß. Weiterhin verliert das Geschoß beim Durchschlagen der Substanz kinetische Energie, was die Messung erschwert. Durch andere akustische Einflüsse, die in der Substanz Schallwellen erzeugen, wie zum Beispiel die Kopfwelle des Geschosses wird die Messung ebenfalls beeinträchtigt und endlich muß nach jedem Durchschlag auch nur eines Geschosses die Substanz erneuert werden weil die Homogenität gestört ist. Damit ist ide Anwendung bei Maschinenwaffen unmöglich.From US Ermittlung PS 34 45 808 a device for determining the direction of the projectile is known in which the projectile penetrates two levels covered with a substance, thereby generating a sound wave in the substance, which is transmitted in the substance to acoustic sensors, which according to the address different running times and feed their signals to a computer. Here, the sensors do not respond to the head wave of the projectile but to a sound wave generated by the projectile in the substance. The device also has the disadvantage that, for reasons of measurement accuracy, the substance must be homogeneously and isotropically tensioned. Furthermore, the projectile loses kinetic energy when the substance penetrates, which makes measurement more difficult. The measurement is also adversely affected by other acoustic influences that generate sound waves in the substance, such as the head wave of the projectile, and finally the substance must be renewed after each penetration of even one storey because the homogeneity is disturbed. This makes the use of machine guns impossible.

Ausgehend von diesem Stande der Technik liegt der Erfindung die Aufgabe zugrunde, eine Anordnung der eingangs angegebenen Art anzugeben, die auch bei schrägem Einschuß in die durch die akustische Sensoren gebeildeten Ebenen und bei hoher Schußfolge eine genaue Lage der Punkte zu ermitteln und auszuwerten gestattet in dem das Geschoß diese Ebenen durchstößt.Based on this prior art, the invention has for its object to provide an arrangement of the type mentioned, which allows to determine and evaluate a precise position of the points in the plane formed by the acoustic sensors and with a high firing sequence even at an oblique shot the projectile penetrates these levels.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß die die Sensoren Aufnehmenden Ebenen lediglich gedachte, ideelle Ebenen darstellen, sodaß die Sensoren unter Fortfall eines anderen Mediums lediglich von sich in Luft fortpflanzenden Kopfwellen beeinflußbar sind.This object is achieved according to the invention in that the planes receiving the sensors merely represent imaginary, ideal planes, so that the sensors can only be influenced by head waves propagating in air when another medium is eliminated.

In einer bevorzugten Ausführungsform sind die Sensoren in jeder der beiden Ebenen auf einem die Flugbahn umgreifenden Rahmen angeordnet, wobei mit Vorteil die beiden Rahmen zu einem Bukörper vereinigt sind.In a preferred embodiment, the sensors are arranged in each of the two levels on a frame encompassing the trajectory, the two frames advantageously being combined to form a body.

In Weiterbildung der Erfindung sind die Rahmen oder der Baukörper rechteckig ausgebildet und auf jeder Seite mit Sensoren bestückt.In a further development of the invention, the frames or the structure are rectangular and are equipped with sensors on each side.

Die erfindungsgemäße Anordnung kann in Abwandlung auch dazu dienen, die Flugbahn nicht nur vor dem Ziel sondern über ihre ganze Länge zu erfassen. Dies geschieht dadurch, daß an in vorgegebenen Abständen entlang der Flugbahn des Geschosses angeordneten Meßpunkten an jedem Meßpunkt Sensoren in zwei Ebenen angeordnet sind, wobei die Ebenen mindestens annähernd senkrecht zur Flugbahn liegen und die Sensoren die Flugbahn umgreifen. Damit wird es möglich die mit der erfindungsgemäßen Anordnung meßbaren Werte auf der Flugbahn zu erfassen.In a modification, the arrangement according to the invention can also serve to detect the trajectory not only in front of the target but over its entire length. This is done in that sensors are arranged in two planes at each measuring point at measuring points arranged at predetermined intervals along the trajectory of the projectile, the planes being at least approximately perpendicular to the trajectory and the sensors encompassing the trajectory. This makes it possible to record the values on the trajectory that can be measured with the arrangement according to the invention.

Der besonder Vorteil und die Arbeitsweise der erfindungsgemäßen Anordnung werden an Hand der Figuren 1 und 2 erläutert. Diese zeigen in zum Teil schematischer Darstellung ein Ausführungsbeispiel der erfindungsgemäßen Anordnung, wobei der Übersichtlichkeit wegen nur die zur Messung der senkrechten Abweichung der Trefferlage erforderlichen Sensoren dargestellt sind.The particular advantage and the mode of operation of the arrangement according to the invention are explained with reference to FIGS. 1 and 2. These show an exemplary embodiment of the arrangement according to the invention in a partially schematic representation, but for reasons of clarity only those for measuring the vertical one Deviation of the hit position required sensors are shown.

Figur 1 zeigt einen Baukörper 1, der den vorderen Rahmen 2 und den hinteren Rahmen 3 umfaßt. In der Mitte des vorderen Rahmens 2 liegt der Punkt 6, an dem das Geschoß die Ebene des vorderen Rahmens bei exakter Trefferlage mit einer Flugbahn senkrecht zu dieser Ebene durchstoßen müßte. Die Sensoren sind auf dem vorderen Rahmen 2 mit So' und Su' bezeichnet, auf dem hinteren Rahmen 3 mit So und Su. Der senkrechte Abstand zwischen oberer und unterer Seite jedes Rahmens und damit zwischen den Sensoren des Paares So' und Su' sowie So und Su ist mit S, der waagerechte Abstand zwischen den Rahmen und damit zwischen den Sensoren des Paares So und So' sowie Su und Su' ist mit b bezeichnet.Figure 1 shows a structure 1, which includes the front frame 2 and the rear frame 3. In the middle of the front frame 2 is the point 6, at which the projectile would have to penetrate the plane of the front frame with an exact hit position with a trajectory perpendicular to this plane. The sensors are labeled So 'and Su' on the front frame 2 and So and Su on the rear frame 3. The vertical distance between the upper and lower side of each frame and thus between the sensors of the pair So 'and Su' as well as So and Su is S, the horizontal distance between the frame and thus between the sensors of the pair So and So 'as well as Su and Su 'is denoted by b.

Für die senkrechte Abweichung der Bahn des Geschosses 4 von der auf der Ebene im Punkt 6 senkrechten Graden 7 werden folgende Zeitdifferenzen in an sich bekannter Weise und vorzugsweise digital gemessen, wie in Verbindung mit Figur 2 zu erkennen:

  • 1. Die Zeitdifferenz Δts vom Auftreffen der Kopfwelle 5 auf den Sensor So der oberen Seite des hinteren Rahmens 3 bis zum Auftreffen der Kopfwelle 5 auf den Sensor Su der unteren Seite des hinteren Rahmens 3 (oder umgekehrt).
  • 2. Die Zeitdifferenz Δto vom Auftreffen der Kopfwelle 5 auf den Sensor So' der oberen Seite des vorderen Rahmens 2 bis zum Auftreffen der Kopfwelle 5 auf den Sensor So der oberen Seite des hinteren Rahmens 3.
  • 3. Die entsprechende Zeitdifferenz Δtu für die unteren Seiten der Rahmen.
The following time differences are measured in a manner known per se and preferably digitally, as can be seen in connection with FIG. 2, for the vertical deviation of the orbit of the projectile 4 from the degrees 7 which are vertical on the plane at point 6:
  • 1. The time difference Δt s from the impact of the head shaft 5 on the sensor So the upper side of the rear frame 3 to the impact of the head shaft 5 on the sensor Su on the lower side of the rear frame 3 (or vice versa).
  • 2. The time difference Δto from the impact of the head shaft 5 on the sensor So 'on the upper side of the front frame 2 until the impact of the head shaft 5 on the sensor So' on the upper side of the rear frame 3.
  • 3. The corresponding time difference Δt u for the lower sides of the frames.

Die Abweichung Asy des Geschoßdurchtrittspunktes vom Mittelpunkt des hinteren Rahmens 3 in senkrechter Richtung ergibt sich dann aus der Formel:

Figure imgb0001
Darin bedeutet:

  • c = die Fortpflanzungsgeschwindigkeit der Kopfwelle in Luft
  • v = die Geschoßgeschwindigkeit
  • b = der Abstand der Rahmen 2 und 3 senkrecht zu ihren Ebenen
The deviation Asy of the projectile entry point from the center of the rear frame 3 in the vertical direction then results from the formula:
Figure imgb0001
 It means:
  • c = the propagation speed of the head wave in air
  • v = the bullet speed
  • b = the distance of frames 2 and 3 perpendicular to their planes

S = der Abstand zwischen der oberen und der unteren Seite des Rahmens, also die lichte Weite des Rahmens.S = the distance between the top and bottom of the frame, i.e. the inside width of the frame.

φ = der Winkel zwischen der Geschoßbahn und der Senkrechten auf die Treffbildebene.φ = the angle between the floor trajectory and the perpendicular to the hit image level.

Die Geschoßgeschwindigkeit v ergibt sich aus:

Figure imgb0002
wobei cos φ = 1 gesetzt werden kann, da der Winkel praktisch stets unter 5° bleibt.The bullet velocity v results from:
Figure imgb0002
 where cos φ = 1 can be set because the angle practically always remains below 5 °.

Der Winkel φ ergibt sich dann aus:

Figure imgb0003
Ist die Flugbahn genau senkrecht zur Rahmenebene, ¢ also = 0, ergibt sich Δsy, als:
Figure imgb0004
wie bereits bekannt.The angle φ then results from:
Figure imgb0003
 If the trajectory is exactly perpendicular to the frame plane, ¢ therefore = 0, Δs y results as:
Figure imgb0004
 as already known.

In gleicher Weise werden die Zeitdifferenzen für die horizontale Richtung gemessen und ausgewertet, wobei sich Osx also Abweichung vom Mittelpunkt in waagerechter Richtung ergibt.The time differences for the horizontal direction are measured and evaluated in the same way, Os x thus resulting in a deviation from the center point in the horizontal direction.

Eine verbesserung der Meßergebnisse erfolgt, wenn jede Seite der beiden Rahmen mit mehreren Sensoren bestückt ist, welche direkt oder über Verstärker parallel oder in Serie geschaltet sind.The measurement results are improved if each side of the two frames is equipped with a plurality of sensors which are connected in parallel or in series, either directly or via amplifiers.

Bei der Auswertung werden mit Vorteil Trefferlage, Geschwindigkeit und Auftreffwinkel von einer EDV-Anlage berechnet. Dabei kann die Schallgeschwindigkeit ebenso wie die Windgeschwindigkeit und -richtung in den Rechner eingegeben werden. Die Schallgeschwindigkeit kann in an sich bekannter Weise in der Meßstrecke gemessen werden. Auch Windgeschwindigkeit und -richtung werden in an sich bekannter Weise ermittelt und gemessen.During the evaluation, the hit position, speed and angle of impact are advantageously calculated by an EDP system. The speed of sound as well as the wind speed and direction can be entered into the computer. The speed of sound can be measured in the measuring section in a manner known per se. Wind speed and direction are also determined and measured in a manner known per se.

Claims (9)

1. Arrangement for determining the hit position and/or the speed and/or the angle of impact of a projectile (4) striking a target at supersonic speed, a plurality of acoustic sensors (So, So', Su, Su') in each case being arranged at the target in two planes (2, 3) parallel to one another and to the target surface and distributed on each of the two planes (2, 3) in such a way that they surround the probable flight path of the projectile (4) and emit signals which are fed to a computer which calculates the divergence of the projectile (4) from the point of aim in accordance with the temporal sequence in which and the temporal interval at which the signals are emitted by the individual sensors (So, So', Su, Su'), characterized in that the planes (2, 3) accommodating the sensors (So, So', Su, Su') represent only imaginary, ideal planes with the results that, in the absence of any other medium, the sensors (So, So', Su, Su') can be influenced only by head waves propagating in air.
2. Arrangement according to Claim 1, characterized in that the sensors (So, So', Su, Su') in each of the two planes are arranged on a frame (2, 3) surrounding the flight paths.
3. Arrangement according to Claim 2, characterized in that the two frames (2,3) are combined to form a single structure (1).
4. Arrangement according to Claim 1 or one of the subsequent claims, characterized in that the frames (2, 3) or the structure (1) are rectangular and fitted on each side with sensors.
5. Arrangement according to Claim 1 or one of the subsequent claims, characterized in that sensors are arranged in two planes at each measuring point of the measuring points arranged at predetermined intervals along the flight path of the projectile, the planes being situated at least approximately perpendicular to the flight path and the sensors surrounding the flight path.
6. Arrangement according to Claim 2 or one of the subsequent claims, characterized in that each side of the two frames (2,3) is fitted with a plurality of sensors, which are connected in parallel or in series, directly or via amplifiers.
7. Arrangement according to Claim 1 or one of the subsequent claims, characterized in that the calculation of hit position, speed and angle of impact is effected using EDP equipment.
8. Arrangement according to Claim 1, or one of the subsequent claims, characterized in that the speed of sound c in the measured section is measured and input into the computer in a manner known per se.
9. Arrangement according to Claim 1, or one of the subsequent claims, characterized in that the wind speed and direction are determined, measured and input into the computer in a manner known per se.
EP85103876A 1984-04-03 1985-03-31 Arrangement to determine the impact point, the velocity and the angle of incidence of a projectile hitting a target at supersonic velocity Expired - Lifetime EP0157397B1 (en)

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AT85103876T ATE60125T1 (en) 1984-04-03 1985-03-31 ARRANGEMENT FOR DETERMINING THE HIT LOCATION AND/OR THE VELOCITY AND/OR THE ANGLE OF IMPACT OF PROJECTIONS HITTING AT A TARGET WITH SUPERSONIC VELOCITY.

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DE19843412326 DE3412326A1 (en) 1984-04-03 1984-04-03 ARRANGEMENT FOR DETERMINING THE MEETING POSITION AND / OR THE SPEED AND / OR THE HIT MEETING ANGLE
DE3412326 1984-04-03

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EP0157397A2 EP0157397A2 (en) 1985-10-09
EP0157397A3 EP0157397A3 (en) 1987-11-25
EP0157397B1 true EP0157397B1 (en) 1991-01-16

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AT (1) ATE60125T1 (en)
DE (1) DE3412326A1 (en)
DK (1) DK150885A (en)
ES (1) ES8701971A1 (en)

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FR2661245B1 (en) * 1990-04-23 1994-07-29 Durieux Jean Loup METHOD FOR SELF-GUIDING A SUPERSONIC MISSILE ON A SUPERSONIC TARGET COMPRISING THE IMPLEMENTING ARRANGEMENTS AND THE METHODS OF USE OF THE METHOD.
DE4106040C2 (en) * 1991-02-22 1994-12-22 Nieke Elektroapparate Gmbh Ber Method and device for determining the speed of projectiles
SE506657C2 (en) 1996-03-29 1998-01-26 Haakan Appelgren Method and apparatus for projectile measurement
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ATE60125T1 (en) 1991-02-15
EP0157397A2 (en) 1985-10-09
ES8701971A1 (en) 1986-12-16
ES542479A0 (en) 1986-12-16
EP0157397A3 (en) 1987-11-25
DE3412326A1 (en) 1985-10-10
DK150885D0 (en) 1985-04-02
DK150885A (en) 1985-10-04

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