RU2527609C1 - Guided artillery round - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: guided artillery round comprises body, automatic control unit, steering unit, unit of braking devices, warhead, combined exploder, stabiliser and base gas generator. ACU comprises robot pilot, set of inertial transducers, GPS receiver, passive radar homing head with broadband receiver and receiver frequency tuner module. Unit of braking devices changes projectile drag at final section of trajectory. Said passive radar homing head responds to radio signal emitted by target and can operated in intermittent mode of target signal receipt.

EFFECT: higher accuracy of hitting.

1 dwg

Description

The invention relates to the field of guided artillery weapons.

The object of the invention is an automatic control device (projectile), designed to deliver with high accuracy to a point with known coordinates of the payload (warhead) in automatic mode. The implementation of device (projectile) control methods is based on the use of information from external sources (for example, radar stations) in the form of radiation in the frequency range of radio waves.

High-precision weapons for various purposes are known, for the control of which both natural informational signs and artificially created ones are used.

Among them, a special place is occupied by guided artillery shells (UAS). Existing and developed UAS can be divided into two types of ammunition, differing from each other by implemented control methods.

The first type includes UAS equipped with semi-active laser homing systems and allowing to hit targets observed from the command and observation point when they are illuminated by a laser beam using a laser target range finder. These are shells of Copperhead (USA); Krasnopol (Russia); Kvitnyk (Ukraine).

The second includes UAS, implementing the principle of "shot and forgot." Shells of this type are known, the control system of which is built on the basis of an inertial system, corrected by signals from the NAVSTAR GPS satellite navigation system. This is ERGM, LRLAP (USA); Excalibur (USA, Sweden); Vulkano (Italy); Pelikan (France). Such shells are planned to be equipped with autonomous homing heads (GOS) of various types: passive infrared, active radar, as well as combined GOS.

A distinctive feature of the first type of projectiles is the presence of a semi-active laser homing system, which consists of two independent elements: a means of illuminating the target with a laser beam and an ammunition guidance system, the main element of which is a semi-active laser homing head. The advantages of these guided munitions include: a high probability of falling from the first shot into the observable (highlighted) target, including small, stationary and mobile, the possibility of selective destruction of specific observed targets, significant values of the chosen misses.

The advantages of UAS of the second type are:

- high accuracy firing at long ranges;

- the possibility of hitting unobserved targets, usually stationary or quasi-stationary.

The main types of targets for the control of which the controllable shells considered and available in development are designed to be:

- group and single armored targets with dynamic and active defense;

- artillery at firing positions;

- missile launchers;

- command posts;

- engineering structures, infrastructure elements, etc.

However, in addition to the listed types of targets, at a depth of the reach of long-range artillery shells there are a sufficient number of objects for which, due to their weak protection, it is assumed to use conventional (unguided) artillery weapons with high-explosive fragmentation warheads. These are radar stations of air defense complexes emitting in various frequency ranges, radar stations of reconnaissance complexes of positions of firing artillery batteries and mortars, radar of command posts of various levels, etc.

Despite the fact that they have poor protection, their destruction requires a significant expenditure of artillery shells (MLRS shells).

To reduce the cost of shells and time to complete a combat mission, an automatic control device is proposed - a guided artillery homing missile, a diagram of which is shown in the figure.

A distinctive feature of the proposed device from the existing and described above is the presence of a passive radar homing head (PRGS) in the automatic control unit of the projectile, with the help of which the projectile is aimed at the target by its radio emission.

UAS includes:

1 - housing;

2 - automatic control unit;

3 - steering unit;

4 - a block of braking devices that change the drag of a projectile in a finite portion of the path

5 - warhead;

6 - combined explosive device;

7 - stabilizer;

8 - bottom gas generator.

The automatic control unit contains:

9 - autopilot;

10 - passive radar homing head with a broadband radio emission receiver and a receiver frequency tuning module, operating on a radio signal emitted by the target, and capable of operating in intermittent mode of the radio signal from the target;

11 - block inertial sensors;

12 - GPS receiver;

13 - processor.

A feature of the use of this projectile is that before loading it into the artillery system, the PRGS receiver is tuned to the radiation frequency of the target to be hit. The initial data are automatically entered into the corresponding channel of the frequency setting module of the automatic control unit.

A missile with PRGS is fired at the target area by target designation received from radar reconnaissance equipment. When approaching a target, the homing head searches for, captures and guides a projectile at it.

In the event of a signal loss from the target (termination of the radar), the projectile continues to aim at the target according to the latest information recorded on board using the inertial system. When the station resumes operation, the projectile returns to passive homing mode.

The performed efficiency calculations show that the implementation of the invention will allow the targeted destruction of reconnaissance targets and at times reduce the consumption of artillery ammunition for hitting radio-emitting targets. At the same time, the residence time of artillery weapons at firing positions is significantly reduced when fulfilling missile targets.

The drawing shows a block diagram of a guided artillery shell. The projectile is made according to the classical aerodynamic scheme and consists of a housing 1, an automatic control unit 2, which includes an autopilot 9, a passive radar homing head 10 with a broadband radio emission receiver and a receiver frequency tuning module, an inertial sensor unit 11, a GPS receiver 12, a processor 13 Structurally, in the compartment of the automatic control unit 2 there is a combined fuse device 6. The remaining elements of the guided artillery shell are traditional for shells with aerodynamic control and are: steering unit 3, block of brake devices 4, warhead 5, stabilizer 7, bottom gas generator 8.

Claims (1)

A guided artillery shell, which includes a body, an automatic control unit, including an autopilot, an inertial sensor unit, a GPS receiver, a processor, a steering gear unit, a braking unit that changes the projectile drag on the final section of the trajectory, warhead, combined explosive device, stabilizer, bottom gas generator, characterized in that in order to combat radio-emitting targets, a passive radar target is included in the automatic control unit of the projectile Homing guide with a broadband receiver and a receiver frequency tuning module, operating on the radio signal emitted by the target, and capable of operating in intermittent mode of the signal from the target.