RU2131107C1 - Aid organizing jamming - Google Patents

Abstract

FIELD: organization of active jamming and suppression of radio communication lines, command and control centers. SUBSTANCE: invention can find use in rocket engineering, especially in rocket shells of salvo fire systems. Aid organizing jamming includes delivery device, body of shell with jamming transmitter and remote time unit. Jamming transmitter is located in container in body of shell which is pressed with bottom having bevel in bearing surface against adapter providing for gas-dynamic bonding of expelling charge installed in it with pyroretarder of container. Weakening section is made in cylindrical jacket of body of shell between bottom cut of container and delivery device manufactured in the form of solid-fuel rocket engine. Jamming transmitter is pressed inside container against bearing ring by diaphragm. Expelling charge is fixed in bushing with screwed in pyroretarder. Device for forced opening of body of charge made in the form of flexible plate with sharp-end protrusion is positioned between pyroretarder and expelling charge. EFFECT: enhanced reliability of delivery of jamming transmitter. 5 dwg

Description

 The invention relates to radio jamming means, and in particular to means equipped with jamming transmitters, and is intended to create radio noise and suppress radio communication lines of command and control points of troops and also ground information processing points and can be widely used in the field of rocketry, especially in jet shells of multiple launch rocket systems.

 The widespread use of electronic weapons in the troops and the increase in their role in modern combat has led to a change in outlook on electronic warfare. The main disadvantage of stationary (jamming stations AN / TLQ-15, AN / MLQ-34, etc.) and aviation (helicopter “Quick Fix-12, aircraft AN / ULQ-11) suppression means is their high vulnerability. In this regard, Recently, the emphasis has been shifted to radio-electronic suppression of enemy radio communications using disposable interference transmitters that can be delivered to the area of suppressed objects by various means, namely: airplanes, missiles, artillery, or personnel.

 In given areas, such transmitters operate automatically for several tens of minutes and can suppress enemy electronic weapons at a distance of several kilometers.

 In this regard, the importance of solving the problem of prompt delivery with high reliability and accuracy of interference transmitters to the area of suppressed objects is growing sharply.

 So, the US Ground Forces are equipped with the HEEXJAM (Hand Emplaced Expendable jammer) jammer, thrown into the enemy rear by reconnaissance and sabotage groups (Journal of Foreign Military Review N 5, 1989, p. 28). The continuous operation time of such a sample (weight about 2.5 kg) 2 hours, radiation power 10 watts. The interference transmitter can be tuned to two frequencies (in the range of 20 ... 80 MHz), operates in barrage mode and turns on with a delay of several minutes to 30 hours. Such interference transmitters are capable of suppressing radio targets inaccessible to ground and helicopter jammers.

 The disadvantage of using transmitters delivered by reconnaissance and sabotage groups is the low reliability of their timely delivery to a given area, as well as a significant decrease in the efficiency of their use in areas of well-guarded facilities (command and control posts, command posts, etc.), due to low power ( 10 W) and, therefore, of a limited radius of action (≈ 300 m) of jamming transmitters.

 Thus, when developing the data of the jamming transmitters, the task was to pre-deliver them to the area where the receiving communications equipment was located, knowing about the low efficiency of their use in areas of well-guarded objects and the insufficient efficiency in solving combat missions.

 Common features with the radio interference supply tool proposed by the authors is the presence of disposable interference transmitters.

 Recently, the delivery of jamming transmitters with the help of artillery and rocket shells, which allow the prompt delivery of single-use jamming transmitters to specified areas with great reliability, has become widespread.

 The closest in technical essence and the achieved technical effect is a radio jamming device made in the form of a 155-mm artillery shot with an XM869 jammer developed in the USA (Journal of Foreign Military Review No. 5, 1989, p. 28-29) adopted sponsored by the prototype.

 The radio jamming device consists of a delivery device made in the form of a propellant warhead, a remotely-temporary device and a projectile body, inside of which jamming transmitters are placed, pressed to a screwed fairing with a sheared bottom. In flight, the bottom of the projectile is kicked out when the distant-time device is triggered, and interference transmitters with a small radius of action are thrown out one at a time at certain intervals set by the time relay, which ensures their dispersion on the ground. After a stabilized flight, when striking the ground, the pin antennas extend out of the transmitters and after a certain amount of time the interference begins.

 The radio jamming device has drawbacks, namely, large starting shock overloads, and at the moment of cutting off the bottom and ejecting the transmitters from the body, since the mass of the detachable transmitters is much less than the mass of the projectile body and they receive large braking accelerations, and optimal external ballistic conditions are not provided for operation of emission interference transmitters that are directly introduced into the air stream with large angular and linear velocities, which significantly reduces reliability the functioning of the stabilizing device, electronic equipment and power supplies, and therefore the interference transmitter as a whole.

 Considering that sets of shots (8-12 shots) are currently used to cover a wide communication range, where the interference transmitter of each projectile creates interference in one frequency subband, it takes from 2 to 10 minutes to shoot the kit, this reduces the reliability of jamming upon receipt of operational information, which is measured in minutes.

 Thus, the objective of this technical solution (prototype) was to develop means of setting up radio interference and delivering interference transmitters of a given subband to the area of the enemy’s receiving means of communication, which would provide more reliable, timely, as compared to analogue, delivery of interference transmitters.

 Common features with the proposed radio interference jamming means are the presence of a delivery device, a distant-temporal device, and jammers located inside the shell of the projectile.

 Unlike the prototype, in the radio interference jamming facility proposed by the authors, the interference transmitter is placed in the shell of the projectile in a container, which is pressed with a bevel on the support surface to the adapter, which provides gas-dynamic connection of the outgoing charge installed in it with a pyro-moderator, and between the bottom cut of the container and the delivery device made in the form of a solid propellant rocket engine, a weakened section is made on the cylindrical shell of the shell of the projectile, while the interference transmitter in the container it is pressed against the support ring by a diaphragm in which a bushing charge is fixed by a sleeve with a screwed-in retardation retardant, and a force-opening device is installed between the retardant and the batter charge, made in the form of a flexible plate having a pointed protrusion.

 The specified set of features provides a technical result in all cases to which the requested amount of legal protection applies. It is this that allows us to conclude that there is a causal relationship between the totality of the essential features of the claimed technical solution and the achieved technical results.

 The objective of the invention is to create a design means of setting radio interference, with increased reliability and speed of delivery of jamming transmitters in the area of the receiving means of communication of the enemy.

 A new design of the individual nodes of the radio jamming means, as well as the introduction of new nodes in its design and their relative position, lead to a new technical result compared to the prototype.

 The location of the interference transmitter in the container, which with the bottom with the bevel made on the supporting surface, is pressed against the adapter, which provides gas-dynamic connection of the knockout charge installed in it with the pyro-moderator of the container, and the execution of a weakened section on the cylindrical shell of the shell body between the bottom section of the container and the delivery device, made in the form solid propellant rocket engine, allows for the phased introduction of an interference transmitter into the air stream; the movement of the detachable container and missile part with minimum relative speeds; the discrepancy in the trajectories of detachable shell design elements due to the creation of a gas-dynamic tipping moment, which eliminates damage to the jamming transmitters and significantly increases the reliability of their delivery to a given area.

 The introduction of a radio interference jamming device into the container, which houses the interference transmitter, pressed against the support ring by a diaphragm, in which the outgoing charge is fixed, fixed by a sleeve and a screw-in pyro-retarder, allows the interference transmitter to enter the air stream under optimal external ballistic conditions, which eliminates damage to the stabilizing device transmitter and greatly simplifies its design.

 The use in the mechanism of ejecting the interference transmitter from the container of the device for the forced opening of the housing of the expelling charge, located between the pyro-moderator and expelling charge of small elongation and made in the form of a flexible plate having a pointed protrusion, allows for reliable ignition of the charge and to reduce the linear dimensions of the projectile.

 Thus, such a constructive implementation will allow you to create a means of staging radio interference, with increased reliability of operation and effectiveness of combat use in comparison with existing ones.

 The essence of the invention lies in the fact that the means of setting the radio interference, comprising a delivery device, a projectile body with an interference transmitter and a remote temporary device, in contrast to the prototype according to the invention, comprises an interference transmitter in a projectile body in a container, which is pressed against the bottom with a bevel on the supporting surface an adapter that provides gas-dynamic connection of the knockout charge installed in it with the pyro-moderator of the container, and between the bottom section of the container and the delivery device In the form of a solid propellant rocket engine, a weakened cross section is made on the cylindrical shell of the shell of the shell, while inside the container the jammer is pressed against the support ring by a diaphragm, in which a bushing is fixed by a sleeve with a screw-in pyro-retarder, and a device for opening the charge housing made in the form of a flexible plate having a pointed protrusion.

 The invention is illustrated by drawings, where in FIG. 1 shows radio jamming means, FIG. 2 is a longitudinal section through the head portion, in FIG. 3 - container opening unit, in FIG. 4 is a diagram of the action of a gas-dynamic tilting moment; in FIG. 5 is a graph of the change in the overturning moment versus the current pressure inside the housing.

 The radio jamming device consists of a remote temporary device 1, a head part 2, a delivery device in the form of a missile part 3 with a drop-down plumage 4, a shell 5 of a projectile with a weakened cross-section 6.

 To ensure the phased introduction of the interference transmitter 7 into the flow, it is located inside the container 8, and to create a gas-dynamic tipping moment, the container 8 is pressed by the bottom 9, which has a bevel 10 on the supporting surface, which allows the container 8 with the necessary interference speed to be deployed with the interference transmitter 7 relatively missile part 3. On the opposite side of the container 8 is a double-sided castellated adapter 11, in the inner cavity of which is placed the expelling charge 12 of the opening of the head part. The implementation of the adapter 11 with grooves on opposite sides in the form of crowns allows gas-dynamic connection of the knockout charge 12 with the free cavity 13 of the body of the head part 2, thereby increasing the area of their impact when the weakened section 6 is destroyed, as well as providing gas supply to the pyro-moderator 14.

 To ensure unhindered descent from the trajectory of the projectile of the container 8, a weakened section 6 of the shell of the projectile is made between the bottom cut of the container 8 and the rocket part 3.

 The jammer 7 in the container 8 is pressed against the support ring 15 by a diaphragm 16, in the internal cavity of which the kicker 17 is placed, fixed by a sleeve 18, into which the pyro-moderator 14 is screwed. To ensure the opening of the body of the out-charge 17 by the pyro-moderator gases 14, a forced opening device 19 is installed between them kick charge housing 17.

 Means for setting radio interference works as follows. Before starting in the remote temporary device 1 sets the time of its operation. When an electric pulse is applied to the contact device, the igniter and the powder charge of the rocket part are triggered. The projectile goes off the rails and its stabilizing definition is revealed 4. In multiple launch rocket systems, a set of shells is launched in one gulp, which allows them to be fired in 4 ... 8 s. After the flight time entered into the remote device 1, a fire pulse is emitted to the expelling charge 12, the gases of which fill the cavity 13 and create the force necessary to resolve the weakened section 6 of the shell 5 of the shell and simultaneously launch the pyro-moderator 14. Shell 5 along with the remote temporary device 1 are shot in the direction of movement of the projectile. It should be noted that the mass of the shell 5 is less than the mass of the remaining elements of the projectile, which ensures shell firing with accelerations significantly exceeding the negative acceleration of braking of the remaining nodes, which ensures a reduction in the overloads acting on the jamming transmitter 7. At the time of destruction of the weakened section 6 and the movement of the shell 5 along the body of the container 8, given that the container 8 is supported by a sloping bottom 9, a tilting moment is created, the magnitude of which depends on the pressure in the cavity 13 (see Fig. 5). The container 8 together with the jamming transmitter 7 is deployed relative to the shell of the projectile, while the relative speeds of the container 8 and the missile part 3 are close to 0, which eliminates their collision.

 Such a design of the radio jamming means allows, at the moment of opening the warhead and ejecting the container from it, to reduce shock overloads acting on the interference transmitter and to prevent the container from colliding with the detached projectile elements.

 An unstable flight of the container ensures its braking and creates optimal modes of introducing interference into the air stream of the transmitter. After a calculated period of time (delay), the pyro-moderator 14 is triggered, from the action of the fire pulse of which the plate 19 of the knock-open case of the knockout charge body bends, and the knock-out case 17 is opened with a pointed protrusion 20, the powder charge is ignited. Gases penetrate into the cavity 21, the support ring 15 breaks down and the transmitter 7 is pushed out of the container 8. The stabilizing device of the interference transmitter is opened. When approaching the surface, the interference transmitter penetrates the soil to a depth of 2/3 of its body, the telescopic antenna fires off and it begins to radiate interference.

 The phased introduction of the interference transmitter into the airspace allows you to create optimal conditions for the introduction of the stabilizing device of the transmitter, and the use of the forced opening of the expelling charge housing - to increase the reliability of ignition of charges of small elongations, especially at subzero temperatures.

 The implementation of the means of setting the radio interference in accordance with the invention allows reducing the reliability and efficiency of its functioning by reducing the shock overload at the time of the emission of the interference transmitter, as well as eliminating its collision with the detached projectile elements and creating optimal conditions for introducing the transmitter into the air stream.

 The indicated positive effect is confirmed by the large volume of bench and flight tests (reports inv. NN 45853, 46853), which showed that the operational delivery of jammers is carried out by launching a set of rockets in one gulp in 4 s, and the reliability of the shell functioning to ensure the delivery of transmitters to the region the location of communications is 0.986.

 Working structural documentation has been developed on a means of staging radio interference in accordance with the invention and the mass production of these shells is currently beginning.

Claims (1)

 A radio jamming device comprising a delivery device, a shell of a projectile with an interference transmitter and a remote temporary device, characterized in that the interference transmitter is located in the shell of the projectile in a container that is pressed against the adapter with the bevel on the supporting surface and providing a gas-dynamic connection of the knockout installed in it charge with a pyro-moderator of the container, and between the bottom cut of the container and the delivery device, which is a solid propellant rocket engine, on a cylindrical shell weakened section of the projectile holds the housing, the inside jammer container is biased against the support ring diaphragm, wherein the sleeve with screwed pirozamedlitelem fixed lifting charge, and between pirozamedlitelem and expelling charge established forced opening charge housing device in the form of flexible plate having a spiky protrusion.

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