RU2674401C2 - Method of firing guided artillery projectile - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the field of guided artillery weapons, in particular to methods of firing guided artillery shells, and is intended to control the fire of mortars and barreled artillery when firing guided ammunition. Method of firing a guided artillery projectile includes target detection through a sight with a built-in calculator of its own coordinates and target coordinates, a Glonass / GPS module, a target range meter, an azimuth meter and a target elevation meter. In this case, the transfer of coordinates of the target from the sight to the projectile is carried out via a wired or electromagnetic communication interface. Projectile contains the controller of the calculator, the built-in determinant of its own coordinates with the Glonass / GPS module and the trajectory corrector controlling the steering or braking elements of the projectile according to the coordinates of the target entered from the sight calculator via the communication interface, moreover, the controller of the calculator of the projectile also forms a command for undermining the projectile according to the measured distance in the absence of signals from the Glonass / GPS module.

EFFECT: reducing the complexity of technical performance and eliminating the presence of radio communication in the interfaces for transmitting the coordinates of the target, ensuring passive mode of operation throughout the projectile flight path.

1 cl, 1 dwg

Description

The present invention relates to the field of guided artillery weapons, in particular, to methods of firing a guided artillery shell, and is intended to control the fire of mortars and barreled artillery when firing guided ammunition.

Known automated multifunctional sighting system for small arms IWT LF640 SWIR, containing a built-in calculator, range finder, electronic compass, target angle meter and GPS / Glonass module that calculate the geographic coordinates of the target when firing to search for the target after it is hit.

The disadvantage of the IWT LF640 SWIR automated multifunctional sighting system for small arms is the lack of guided ammunition.

Known guided artillery shell (patent RU 2527609 C1, publ. 09/10/2014), comprising a housing, an automatic control unit, a steering drive unit, a block of braking devices, a warhead, a combined explosive device, a stabilizer and a bottom gas generator. The automatic control unit includes an autopilot, a unit of inertial sensors, a GPS receiver, a processor, a passive homing radar head with a broadband receiver and a receiver frequency tuning module, which increases the accuracy of hitting a target with a projectile.

A disadvantage of a guided artillery shell is the high complexity of the automatic control unit, which contains a combination of several guidance systems, including an inertial sensor unit, a GPS receiver, and a passive homing radar.

The closest in technical essence is the method of firing a guided missile (patent RU 2529828 C1, publ. 09/27/2014), including target detection by a target, measuring the target azimuth and distance to the target, topographic location of the launcher, target and target to the terrain, and topographic location targets to the terrain are carried out in the reconnaissance console by calculation, transmitting the coordinates of the target from the reconnaissance console to the firing position control panel via digital radio communication, establishing a single computer time changes in the reconnaissance panel and in the control panel of the firing position, the calculation in the control panel of the firing position and the implementation of the rocket and launcher firing installations, the launch and pointing of the missile at the target, as well as the additional determination of the target’s elevation angle relative to the target pointer and the establishment of a single computer time in the rocket . After launching a rocket, they subsequently topographic to the terrain of a flying rocket using satellite navigation equipment, detect a second, higher priority target, measure the azimuth, elevation angle and range to the second target with a target indicator, topographic tie the second target to the terrain in the reconnaissance console, transmit the coordinates of the second target from the reconnaissance panel to the firing position control panel for digital radio communications, the calculation of missile firing settings for the second target and their transfer to the missile via digital radio communications, a U-turn and guidance of the rocket to the second target, as well as transmission to the control panel of the firing position from the rocket of a message about the work on the second target.

The disadvantage of this method of firing is the high complexity of the technical design, the separate use of the reconnaissance panel and the firing position control panel and the launcher using radio communication between the panels to transmit the coordinates of the target, as well as the use of a semi-active homing laser in the munition, which requires active laser illumination of the target by laser designator.

The objective of the present invention is to reduce the complexity of technical performance, eliminating the presence of radio communications in the interfaces for transmitting the coordinates of the target, providing a passive mode of operation along the entire flight path of the projectile.

The technical result due to the task is achieved in that the method of firing a guided artillery shell, including detecting a target through a sight with built-in calculator of its own coordinates and target coordinates, Glonass / GPS module, distance meter to the target, azimuth meter and target elevation meter, differs the fact that the transfer of the coordinates of the target from the sight to the projectile is through a wired or electromagnetic communication interface, and the projectile contains a computer controller, built-in definition its own coordinates with the Glonass / GPS module and the trajectory corrector that controls the steering or braking elements of the projectile according to the coordinates of the target entered from the transmitter of the sight through the communication interface, and the controller of the calculator of the projectile also generates a command to detonate the projectile from the measured range in the absence of signals from the Glonass / GPS module while the following relationships are true:

X _c = X ₀ + D⋅sinα

Y _c = Y ₀ + D⋅cosα

Z _n = Z ₀ + D⋅sinβ

where X _C , Y _C , Z _C - calculated coordinates of the target in the sight, transmitted to the projectile through the communication interface;

X ₀ , Y ₀ , Z ₀ - own coordinates of the sight, measured by the coordinates determinant - Glonass / GPS module;

D is the range to the target, measured by the range finder integrated in the sight;

α is the target azimuth measured by the azimuth indicator integrated in the sight;

β is the target elevation angle measured by the target elevation angle meter integrated in the sight.

In FIG. 1 is a diagram of the implementation of the proposed method.

The sight contains a sighting channel (day, day, night, multispectral) with a shaper, a visualization device (display, eyepiece), a high-precision range finder, a coordinate finder (Glonass / GPS, etc.), an azimuth indicator, a target elevation meter (inclinometer), and target coordinate calculator. The projectile contains a coordinate determinant (Glonass / GPS, etc.), a calculator controller and a path corrector. The sight target coordinate calculator is connected to the projectile calculator controller by a communication interface (wired, electromagnetic, etc.)

The essence of the method of firing a guided artillery shell is as follows.

The artillery gun is equipped with a sight with a built-in calculator of its own coordinates and target coordinates, a Glonass / GPS module, a target range meter, an azimuth meter and a target elevation meter, which serves to detect and track the target, as well as to shoot artillery shells at sighting grids of the sighting channel . Using the built-in calculator in the sight, your own coordinates are also determined and the coordinates of the target are calculated, which must correspond to the following relationships:

X _c = X ₀ + D⋅sinα

Y _c = Y ₀ + D⋅cosα

Z _c = Z ₀ + D⋅sinβ

When firing, the coordinates of the target, determined by the calculator of the sight, are transmitted to the controller of the calculator of the projectile through an interface for communication with the projectile (wired, electromagnetic, etc.).

The projectile contains a calculator controller, a built-in local coordinate determiner with a Glonass / GPS module, and a path corrector. The projectile trajectory corrector compares the coordinates of the target entered from the transmitter of the sight through the communication interface with the own coordinates determined by the determinant of the own coordinates with the Glonass / GPS module, and generates control commands for the steering or braking elements of the projectile, which increase the likelihood of the projectile hitting the target.

In the absence of signals from the Glonass / GPS module, the projectile computer controller generates a projectile detonation command according to the measured range, implementing a remote projectile detonation mode, which increases the likelihood of a projectile hitting a target.

The accuracy of this method of firing with a guided artillery shell depends on the accuracy of satellite navigation, which, in turn, depends on the number and signal quality of available satellites, as well as on the methods used to increase the accuracy of determining coordinates. When using differential corrections, it is possible to obtain an error of coordinate measurement of 1 ÷ 1.5 m. When using measurements by phase of the carrier frequency, it is possible to obtain higher accuracy - up to units of mm (Methods for determining the navigation parameters of vehicles using the GLONASS satellite radio navigation system: monograph / V .N. Tyapkin, E.N. Garin. - Krasnoyarsk: Sib.Fede. Un., 2012, chapter 2). This accuracy of determining the coordinates allows you to implement a method of firing a guided artillery shell using the Glonass satellite navigation system.

The proposed method of firing a guided artillery shell reduces the complexity of technical performance, eliminates the presence of radio communications in the interfaces for transmitting the coordinates of the target and provides a passive mode of operation along the entire flight path of the projectile.

Claims (9)

A method of firing a guided artillery shell, which includes detecting a target through a sight with built-in calculator of its own coordinates and target coordinates, a Glonass / GPS module, a target range meter, an azimuth meter and a target elevation meter, characterized in that the target coordinates are transmitted from the sight to the projectile via a wired or electromagnetic communication interface, and the projectile contains a computer controller, a built-in eigen-coordinate locator with a Glonass / GPS module and a path corrector, yayuschy steering or brake elements of the projectile target coordinates inputted from the calculator sight through the communication interface, wherein the controller also generates calculator projectile projectile firing command from the measured range in the absence of signals from the GLONASS / GPS module, wherein the following relations: X _c = X ₀ + D⋅sin α, Y _c = Y ₀ + D⋅cosα, Z _c = Z ₀ + D⋅sinβ, wherein X _n, Y _n, Z _n - calculated target coordinates in the sight transmitted to the projectile via the communication interface; X ₀ , Y ₀ , Z ₀ - own coordinates of the sight, measured by the determinant of coordinates - Glonass / GPS module; D is the range to the target, measured by the range finder integrated in the sight; α is the target azimuth measured by the azimuth indicator integrated in the sight; β is the target elevation angle measured by the target elevation angle meter integrated in the sight.

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