RU2588604C1 - Method for automatic detection of targets - Google Patents

Abstract

FIELD: optics; weapons and ammunition.

SUBSTANCE: method for automatic detection of targets can be used when upgrading and designing of samples of infantry military equipment. Summary of invention consists in fact that in method for automatic detection of targets using laser radar, which consists in guidance operator by means of its electro-optical sight of laser locator on expected target, its formation of probing pulse, reception and processing by receiving device of laser radiation reflected from optical-electronic target device and issuing signal about presence or absence of target, wherein probing pulse contains coded information of target requester system identification receiving device, system of identification, installed on target belonging to own troops, receives and processes obtained encoded probing pulse and sends response coded radio signal, acknowledging target belonging to own forces. Requester system state identification receives coded radio signal and informs operator on belonging of target to own forces, while with absence of target acknowledgement coded radio signal informs operator on belonging of target to the enemy.

EFFECT: realisation of simultaneous functions of automatic detection and identification of targets, which ultimately reduces time for solving the problem of fire, elimination of random fire and hitting own forces.

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Description

The invention relates to weapons and military equipment (IWT), and in particular to methods for automatically detecting ground targets, and can be used in the modernization and development of models of IWT of ground forces.

In modern combat vehicles of the ground forces (tanks, infantry fighting vehicles, armored personnel carriers, etc.), the phono-target situation on the battlefield is revealed using the complex of observation and aiming devices for the crew members.

Additionally, the fire control systems of modern combat vehicles (in the presence of an automated control system of the unit) can receive information on the background target situation from other types of military equipment and systems conducting reconnaissance of the battlefield.

At the same time, there are often situations when surveillance and aiming devices do not allow for the effective detection and recognition of quickly appearing and changing their location hidden, disguised and small-sized targets (for example, rocket launchers, ATGM calculations, etc.), which are a high danger for military vehicles.

In order to solve the problems of searching for such targets, systems for automatic target detection [1], in particular systems using:

- methods of laser location, which consist of emitting laser pulses and receiving a reflected signal from optical systems containing a reflecting surface in the focal plane (retroreflection effect or “backlight”);

- sound metering method using direction finding of the sound of a shot using several microphones and calculating the position of the firing weapon by the delay of the sound wave;

- a method of thermal location based on the detection of thermal radiation from a shot of a firearm.

The most effective are methods that use a laser location, the advantages of which are [1]:

- high noise immunity;

- a large range of target detection (up to 2 km or more);

- high accuracy in determining the coordinates of targets;

- the practical impossibility of protecting targets with optoelectronic devices from detection;

- daily work.

Currently, it is planned to install laser systems for the automatic detection of optical and optoelectronic devices on promising ground forces combat vehicles [2].

Closest to the proposed method is a method for automatically detecting enemy targets, used in optoelectronic devices such as "antisniper".

So, in the USA, for the accurate detection of a sniper with a telescopic sight, industrial laser locators SLD 500 from CILAS are used [1]. A method for detecting a sniper (the optical sight of his rifle) is as follows. Using his optical sight, the operator directs the laser beam of the anti-sniper device in the direction of the alleged location of the sniper. When the laser beam of the locator hits the objective of the target’s optical sight, it generates reflected laser radiation, which, returning in the same direction from where it came, passes through the optical system to the photodetector and then to the signal processing device, which automatically gives a signal about the presence of or lack of purpose.

This method allows you to detect the position of a sniper and quickly identify a potential threat. Subsequent recognition and identification of the detected target is made by the operator traditionally using his aiming means.

This method has also found application in Russian-made devices developed, for example, by Bezar-Imper LLC [1], designed for remote automatic detection of targets conducting counter-observation using optical and optoelectronic devices, sights, telephoto lenses conditions of both intense daylight and weak night illumination (devices "SPIN-2", "Samurai", "Luch-1M", etc.).

At the same time, the known method for automatically detecting a target using a laser locator does not provide an automatic solution to the problem of its recognition and identification (in particular, state recognition), and the optoelectronic surveillance and aiming devices that work together with the locator are not always able to solve these problems.

In this case, the time required to search for a target is significantly increased and there is a danger of shelling and destruction of one’s forces and assets.

The aim of the present invention is the provision of automatic detection of targets, including hidden, camouflaged, small, while solving the problem of their automatic state recognition.

The essence of the invention lies in the fact that in the known method for automatic target detection using a laser locator, which consists in the operator using his optoelectronic sight of the laser locator at the intended target, forming a probe pulse, receiving and processing the receiving device of the reflected laser radiation from the optic -electronic target device and issuing a signal about the presence or absence of the target, the probe pulse contains encoded information of the interrogator of the state system recognition of the target. The receiver of the state recognition system, installed on a target belonging to its troops, receives and processes the received encoded sounding pulse and transmits a coded response radio signal confirming that the target belongs to its troops. The requestor of the state identification system receives a coded radio signal and informs the operator of the target’s belonging to his troops, and if there is no confirming coded radio signal from the target, he informs the operator of the target’s belonging to the enemy.

The proposed method has the following advantages over the known:

- provides the implementation of the simultaneous implementation of the functions of automatic detection and state recognition of targets, which ultimately reduces the time it takes to solve a fire problem;

- situations of accidental shelling and destruction of one’s forces and assets are excluded.

Information sources

1. "POPULAR MECHANICS", ARMY-GUIDE.com.

2. REX News Agency, http://www.iarex.ru/articles/37660.html.

Claims (1)

A method for automatically detecting targets, which consists in guiding the operator using his optoelectronic sight of a laser locator at the intended target, forming an emitting probe pulse, receiving and processing the receiving device of the reflected laser radiation from the optoelectronic device and outputting a signal about the presence or absence of the target characterized in that the probe pulse contains encoded information of the interrogator of the state target recognition system, while the receiving device The state identification system installed on the target belonging to its troops receives and processes the received coded sounding pulse and transmits a coded response radio signal confirming that the target belongs to its troops, the state identification system interrogator receives the coded radio signal and informs the operator about the target's belonging to its troops, and if there is no confirming coded radio signal from the target, it informs the operator of the target's belonging to the enemy.