Method of automatic armaments homing at moving target

FIELD: weapon and ammunition.

SUBSTANCE: method of automatic armaments homing at moving target according to which the periodic image of the field of military operations is formed with a frame frequency, and after target detection, determination of its range, speed of movement and an altitude the lead angles of the weapon for the subsequent shot, differs by that, for the purpose of increase of probability of target destruction and safety of a shooter, after detection of the target the shooter by means of remote control moves the target image to such area of the field of vision of the optical-electronic system (OES) of the sight which would allow at stable position of the line of vision (LV) of OES to observe the target during the time sufficient for the first aiming operation; at this operation the position of LV OES is stabilised spatially; the marker is placed over the image of OES target; the sight operating mode is switched to automatic one at which OES marker moves together with the target, and OES at the beginning of each shot transfers the data (an azimuth and a angle of a place) of the target angular coordinates to the range finder; the range finder is automatically rotated towards the coordinates supplied by OES and as the target enters the sight of the range finder marker it sends an impulse of radiation and determined the range of the target which it transmits to the sight, providing the first triad of data (location angle, an azimuth and range of the target) which are saved in the sight memory; after the time Δt0, multiple to the period of OES frame sweep, the range finder again measures the target range and again transfers the information on the target range to memory of the sight which automatically forms the second triad of data on the target position with reference to the sight; the calculator of the sight using both triads of data and the known time interval Δt0, predicts the target position at the given moment TP; and at calculation of TP the following is taken into account: target speed; range and angle of the target altitude; time of shell flight taking into account the target altitude; dynamic parameters of the sight drive (time of rotation of the sight to the rated point); size of differential coordinates of the second and first triads of data; ambient temperature; wind direction and speed; then LV OES stabilisation is removed and the sight with the weapon stock is rotated towards the direction of the predicted position; after installation of the sight into the rated position at the given time TP the shot is made automatically.

EFFECT: improvement of aiming accuracy taking into account parameters and target motion conditions, homing of the weapon to the rated direction with automatic providing the required lead angle, and the shot at the rated moment without participation of the shooter.

1 cl, 5 dwg

 

The technical field TO WHICH the INVENTION RELATES

The present invention relates to the field of military technology and can be used in automatic defeat moving target given its location and motion parameters, and taking into account the parameters of the weapon.

CHARACTERISTIC of the PRIOR art AND ITS DISADVANTAGES

A method of guided weapons release devices (PU) with opto-electronic systems (OES), type Kornet-e" and "Quartet" [1, 2], which are:

- easy to handle, does not require maintenance personnel of high qualification;

- versatility of use, damage to both ground and air targets outside the effective return fire of the enemy;

- combat job in the provisions of "lying", "kneeling", "standing in the trenches", with prepared and unprepared firing positions;

- modular principle of construction of PU, its low weight and dimensions, the versatility of the attachment, giving the opportunity to put PU on a variety of media, including jeep.

The rocket complex "Kornet-e" is controlled either visually, with the use of the scope - of a homing device, or by using a laser beam channel stabilized sight combat vehicle, thus:

- in the viewfinder of a complex display the crosshair and the target;

<> - bring an image of crosshairs on the target by turning weapons;

- determine the range of the purpose using a rangefinder;

- use the value range for position correction crosshair;

- put the crosshairs on the estimated target position, given the range and speed of movement [1, 2].

The known method does not provide the necessary speed and precision aiming because aiming marker on the target and follow-up after the missile launch tracking is carried out visually or by means of the control laser radiation beam path, unmasking the launcher; in addition, the method is not taken into account automatically the speed and elevation of the target and therefore the method does not provide the most likely and quick defeat, in addition, the shooter put himself in danger by throwing laser and shot his location.

Also known method [3] automatic aiming when firing at high-speed low-flying targets (prototype). In the known method is carried out a review of the specified sector, the target detection and weapon guidance (grenade launcher) coordinates issued by the surveillance and targeting system (OPS), which includes two sights that are installed at a predetermined basic distance from each other, each of the sights SN�been XY rotary device, and the way the sight is electrically coupled to an output of OPS coordinator and input on the monitor multiplexer.

The known method has several disadvantages, which reduce the accuracy of guided weapons:

- the error between the real position of the barrel of the weapon and two-axis rotary device, the position of which depends on the operating temperature;

- systematic two-axis angular error between the coordinates of the OPS sensors and weapons, the readings of which are also dependent on the operating temperature;

- dynamic XY error when pointing weapons at a moving target.

In addition, in the known system are not eliminated dynamic errors associated with the actuator servo system and a trigger device (due to their hysteresis, backlash, dynamic lag), as well as static errors of the position sensors of the barrel of the weapon.

The TECHNICAL PROBLEM SOLVED by the INVENTION

The aim of the invention is to improve the accuracy of aiming with the given parameters and conditions of target motion (for example, distance, elevation, and the operating temperature environment), weapon guidance in the estimated direction with automatic securing the necessary lead angles, and shot in the estimated time without the participation of the arrow. In this case, the error of aiming and arrow risk of electric shock min�misroute.

In the claimed method at the stage of aiming, there are no internal displacements ECO relative to external landmarks, as well as reciprocal movement of nodes within the ECO; this eliminates almost all dynamic errors of sight and to minimize the angular error of the coordinates of the target during the encounter with the weapon to the angular resolution of the ECO.

In addition, in the present method eliminates the constant unmasking of the target tracking sight, for example the actions of the shooter (the shooter may be in the shelter throughout the cycle against the objective), using single (or pair) pulse emitter (radar or laser), this drastically reduces the energy and time contact order between the time it is discovered and shot.

Summary of the INVENTION

A method of aiming a weapon with a scope, containing rangefinder and optical-electronic system (IPS) with a photodetector matrix (FPA), in which:

1. Form periodic, with a refresh rate of ECO thermal image of the Gaza hostilities, after the detection of a target operator (shooter) its task:

- using the control panel and two-coordinate drive ECO to change the position of the line of sight (LV) ECO, translating the image of the target in the field of view of the ECO, in which cellbody be observed over time, sufficient for aiming;

- to throw a marker of the UES to the target image, then zastabilizirovat position LV ECO for a few (~ 10-20 frames ECO);

2. Marker ECO gives the evaluator the angular coordinates of the target (azimuth - βiand elevation - εiat the beginning of each frame. As the target moves LV ECO stationary, the ECO evaluator periodically issues a current angular coordinates of the target to the rangefinder, the axis of which is translated in the direction of the objective marker.

3. After a certain time interval, sufficient to the optical axis of the finder reached the goal, the rangefinder sends a pulse synchronized with the vertical sweep of the ECO, the first time determines the range of the target (D1and sends the data to the evaluator sight, providing together with the angular coordinates of the target receiving the first triad data (angle of elevation β1, azimuth ε1and distance D1). This triad of data stored in the memory of the ECO evaluator.

4. After a certain time Δt0multiple frame scanning period, the rangefinder again measure the distance the target and transmits information about the distance to the ECO, which forms the second triad data (ε2, β2and D2) on the position of the target relative to the ECO.

5. Using both triad data and the known time interval Δt0vychislitel� ECO predicts the target location (β3, ε3, D3at the time of her meeting with the weapon TPand when you set the value of TPtake into account:

- dynamic ECO drive parameters, defined by the delay of the actuator;

- the value of the differential coordinate of the second and the first triad data;

- the speed and range performance goals;

- flight time of the weapon with account:

a) elevation of the target;

b) the ambient temperature;

b) the direction and velocity of wind.

6. After this stabilization BGN removed the ECO, the ECO together with the barrel rotates in the direction of the estimated position of the target at angles Δβ=β3-β1 and ∆ Ε=ε3-ε1; the center of the field of view of the ECO, (i.e. LV ECO) and the barrel remain collinear in the process of aiming and routed to a point with A projected angular coordinates (β3, ε3).

7. After installing LV ECO in the direction T. A, calculated in the time TPthe sight automatically gives the command to shoot.

BRIEF description of the DRAWINGS

Fig. 1 shows the phases of the works of ECO, a rangefinder and sight:

Fig. A1:

1 - the original field of view of the ECO;

2 - the original field of view of the rangefinder;

Fig. A2-1 and A2-2:

3 - the location of the detected target;

4 - sight ECO 1 together with a field of view of finder turn 2 (on the angles Δβ0and Δε0to goal 3 as long as possible remained in sight of the ECO 1, with a fixed field of vision� ECO 1;

Fig. A3 shows the location of the target, after stabilization of the line of sight of the ECO 1;

Fig. A4 shown:

- turn the rangefinder on the corners according to ECO 1 towards the target 3 and, after reaching a predetermined angular coordinates, finder 2 for the first time defines range goal D1; at the same time ECO 1 determines the angular coordinates of the target 3 (β1, ε1);

- the angular displacement of the target to the coordinates (β2, ε2); according to the UES 1 and measuring its distance D2in a calibrated time Δt=n·TC, where n is a calibrated number of frames ECO 1, TC - frame scanning period;

- target offsets to the coordinates (β3, ε3) at the estimated time of the start of the weapon and see weapons for the purpose;

Fig. A5 shown required for meetings to proactively offset the line of sight of the ECO 1 in the coordinates (β3, ε3), at the time of starting weapons. The calculated coordinates (β3, ε3) issued for the ECO drives 1 with the time of their turn. Drives rangefinder fixed.

Fig. 2 shows the spatial arrangement of the fields of view of the UES 1 and 2 rangefinder:

1 - ECO;

2 - rangefinder;

5 - two-axis rotator sight, the angles of rotation of LV rangefinder relative to the LV ECO 1 teams are set ECO 1;

6 - XY rotary device rangefinder 2;

7 - hard sight base.

Fig. 3 shows the b�OK-scheme of the sight. Here:

1 - ECO

1-1 lens with the FPA ECO;

1-2 - ERI and the evaluator;

8 is a control block sight;

8-1 Monitor;

8-2 remote control

9 - sensors working conditions of sight:

- t0- operating temperature environment;

- V is the wind speed;

- ε0- the elevation angle.

Notes:

a) typical beam divergence of the rangefinder of 0.5×to 2.0 mrad;

b) the required pointing accuracy of the rangefinder 2 point goal is not worse than the 0.25×1.0 mrad;

b) the range of angles of rotation of the rangefinder 2 - within the field of view of ECO 1.

Fig. 4 shows a timing diagram of a sight.

A - time ECO 1 from the moment of target detection 3 to start weapons;

B - time interval of operation of the rangefinder 2;

In the time interval of issuance rangefinder 2 two triples of coordinates of the target 3;

G - the time interval Δt0for the issuance of pairs of triples of coordinates ECO 1 rangefinder 2.

t1- detection of target UES 1,

t2-t1- the optical axis of the UES 1 and 2 rangefinder is translated to the desired point of sight 1 ECO,

t4-t1active motors finder 2 teams on OES 1,

t3-t2- rotate 2 rangefinder and delivery of the first three coordinates of the target on ECO 1 at time t3;

t4-t3- estimated delay Δt0pulse 2 rangefinder to establish the second of the three coordinates of the target;/p>

t4- issuance of the second triplet of coordinates of the target;

t5-t4- calculations that predict the position of the target on the line of sight of the ECO at the time t7;

ΔTP- the calculated time for resetting LV ECO to the calculated position;

T0- the estimated time of the shot.

ΔTP- the calculated time of flight of the projectile before meeting with a calculated point;

Fig. 5 shows the spatial panorama for air targets 3. All notations are equivalent shown in Fig. 2 and 3.

An EXAMPLE of carrying out the INVENTION

Destination search is performed by the operator or manually by using the control unit or by automatic scan of the field of view of the UES for a given program.

In the case of moving target detection (Fig. 1 (A2-1 and A2-2)), at time t1the operator sequentially performs the following operations:

- exercises on the trajectory of the target installation LV ECO so that in its motion the goal of the field of view of the ECO (the time interval t1-t2);

- switches the operation mode of the sight on automatic, with the transfer of the current angular coordinates of the target from the transmitter ECO rangefinder (t2);

- at time t3the field of view of the finder reaches the angular coordinates, the data of the UES and PE occurs�boe determination target range range finder; this range is passed to the transmitter ECO, which defines a three-dimensional target coordinates (ε1, β1, D1);

- as the movement target angular coordinates are changed, the optical axis of the rangefinder is constantly induced by the current angular coordinates of the target, defined ECO sight on the target position in the field of view of the ECO and the ECO line of sight remains stationary;

- after a certain time interval Δt0at the time t4rangefinder secondarily transfers the data (D2) on the target range; the magnitude of Δt0is selected from the following conditions:

(a) the ratio Δt0the frame scanning period TK;

b) the total duration Δt0should not be too small, as the reduction increases, the error in range; but cannot be too high, since the goal can change the parameters of movement. The most appropriate value of Δt0≈(5...10)*TK;

- at time t4ECO also throws in the memory of the computer corner coordinates ε2, β2that , together with a range of D2provide a second triad of numbers (ε2, β2, D2) determining a second position of the target (Fig. 1 A4), then the determination of target range and its angular coordinates on the rangefinder stops and the transmitter goes into ECO mode analysis of the likely provisions of the TSE�and through the calibrated time T P; given:

- necessary time TPon LV twist in ECO coordinates ε3, β3;

- waiting time of appearance of the target in current frame number in the center of TAbout;

- then automatically at time TPthe shot is made.

Benefits and features of the proposed method are as follows:

1. The shooter may sit in the shelter and does not detect your location even if you miss the shot.

2. Fixed ECO the initial installation of LP (when receiving the first and second triads of target data) improves the accuracy of targeting, since the current angular coordinates of the target are counted in the field of view of the ECO with the matrix detector in a stationary mode; thus, there are no systematic errors inherent in the prototype with a mechanical pointing weapons at consecutive target tracking.

3. The total number of frames from the moment of detection of a target before the shot can be reduced to 5 to 10 frames, then the delay from the moment of detection to shot with automatic guidance will be 0.2...0.5 s, i.e. much less than with manual pointing.

4. XY rotation LV ECO (with the barrel) must ensure that the error is not more than half of the instantaneous angle of view of the ECO and can be implemented with the help of� stepper drive mode in the crushing step.

5. The pointing accuracy of the optical axis of the finder can be low, the pointing error can be comparable with the width of the directional diagram of the probing beam of the range finder; quick and independent rotation of its optical axis (within the field of view ECO) can be solved by a simple method.

LITERATURE

1. Carry-portable anti-tank missile complex "Kornet-e".

2. Launcher the Quartet.

3. Patent No. 2292005, CL F41H 11/02.

A method of automatically aiming at a moving target, at which carry out the formation of periodic, with the frame rate, image of the field of hostilities, and after the detection of a target, determine its distance and speed of travel and elevation angles are set to forestall the weapon for subsequent shots, characterized in that, for the purpose of increasing the probability of hitting a target and ensure the safety of the shooter, after the detection of a target shooter:
- using the remote control switches the target image in the field of view of optical-electronic systems (OES) of the sight, which would at a stable position of the line of sight (LV) OES to observe a target for a sufficient time for the first operation aiming;
- in this operation the position of the LV ECO stabilized in space;
- on the image of the target MA� throw a marker;
- transferred mode of operation of the sight in automatic, in which the token ECO moves with purpose, and the ECO at the beginning of each frame transmits data about the angular coordinates of the target (azimuth and elevation) to the rangefinder;
- rangefinder automatically rotated in the direction of the coordinates issued by the ECO, and as a target entering into the field of view of the marker of rangefinder it sends a pulse of radiation and determines the distance to the goal, which transmits to the sight, providing access to a first triad data (elevation, azimuth and range targets), which are stored in the memory of the sight;
- after a time Δt0multiple of the period of the vertical scan ECO, rangefinder again measures the distance of the goal and secondarily transmits information about the target range in the memory of the sight, which automatically generates a second triad of data on the position of the target relative to the reticle;
- the evaluator sight, using both triad data and the known time interval Δt0that predicts the target's position at some time TP; moreover, when calculating the value of TPtake into account:
- target speed;
- the range and elevation angle of the target;
the time of flight of the projectile because of the elevation of the target;
- dynamic parameters of the actuator of sight (a sight design point);
- the value of the differential coordinate of the second and the first triad of data;
- �emperature environment;
- the direction and speed of wind;
then stabilization LV ECO removed, and the sight with rifle barrel is rotated in the direction predicted position; after mounting the scope in the estimated position at some time TPautomatically the shot.



 

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1 dwg

FIELD: guided missile optical guidance systems, applicable in guided weapon systems with teleorientation in a laser beam.

SUBSTANCE: the optical sight of the guided missile guidance system has a coaxially installed sight and a projector including two injection lasers, whose emitting areas are positioned perpendicularly to the axes of the measured co-ordinates, system of laser emission ejection to a single optical axis, an optical scanner in the form of a rotating prism and a zoom lens installed in succession in this axis. The axis of prism rotation is matched with the lens optical axis. The sight has also a nontransparent shutter installed on the cell of the rotating prism, two optronic sensors fixed in parallel with one of the measured co-ordinates in the plane perpendicular to the projector optical axis, the angle between the lines connecting each sensor to the axis of rotation of the prism makes up 90 deg. The outputs of the first and second optronic sensors are connected respectively to the inputs of the first and second delay circuits, whose outputs are connected respectively to the first and second inputs of the exclusive OR circuit, as well as to the first and second inputs of the permanent storage, the output of the exclusive OR circuit is connected to the first inputs of the time counter of the channel switch. The output of the time counter is connected to the third input of the permanent storage, whose output is connected to the first input of the code-to-time converter, whose second input is connected to the output of the frequency standard and the second input of the time counter. The output of the code-to-time converter is connected to the second input of the channels switch, whose outputs are connected respectively to the inputs of the first and second lasers, use is made of the first and second pulse counters, whose first clock inputs are connected to the output of the frequency standard, the carry output of the first pulse counter is connected to the clearance input of the second pulse counter, whose information outputs are connected to the fourth input of the permanent storage.

EFFECT: enhanced range of guidance of the guided missile.

3 dwg

FIELD: means for measurement of psychological characteristics, in particular, devices for determination of the degree of eye fatigue at sighting of various objects.

SUBSTANCE: the device has an operator's control panel, optical forming system, the first and second control units, screening unit, series-connected power source, brightness variation unit, adder, low-frequency filter, sighting index illumination unit, light filters unit and a sighting index forming unit, as well as a generator of periodic signals with their adjustment unit, transducers and indicators of amplitude and frequency. The device has an additional screening unit, deviation sensor, light interference sensor, frequency comparison unit, and a unit for production of a point light source, and a drive of the pint light source with respective couplings.

EFFECT: enhanced truth of estimation of the state of operators.

1 dwg

Sighting device // 2287760

FIELD: devices for sighting of various objects, for example, targets at firing.

SUBSTANCE: the device has an operator's control panel, optical forming system, first and second control units, screening unit, series-connected power supply source, brightness varying unit, adder, low-frequency filter, sighting index illumination unit, light filter unit and a sighting index forming unit, as well as a periodic signal generator with their adjustment unit, transducers and amplitude and frequency indicators. The device uses also an additional index forming unit, ammunition type transducer, transducer of ammunition initial distance from the target and a transducer of variation of this distance at movement of the carrier all connected to the first, second and third inputs respectively, index illumination frequency mismatch indicator, unit for input of images to the field of vision of the sighter-operator, whose first input is connected to the output of the additional index forming unit, and the second input-to the output of the index mismatch indicator. The introduced elements and couplings provide for expansion of the device functional potentialities, in particular, enhancing of the sighting accuracy, which makes it possible to enhance the device efficiency by 15 to 17%, and timely take the respective measures for correction of the characteristics both of the device and operators. Besides, opportunities are enhanced in estimation of the influence of various environmental conduits on the efficiency of operations of the sighting device and operators.

EFFECT: predicted variations of indications of the functional activity of the operator.

1 dwg

FIELD: safety means of passenger and passenger and freight aircraft.

SUBSTANCE: hi-jacking of an aircraft standing on the ground is prevented by detection of the terrorist and annihilation of him with the acid of small arms. Laying of the small arms an the terrorist is accomplished by computation of the terrorist location co-ordinates and the co-ordinates of the remote-controlled small arms and estimation of installation of the small arms. The terrorist is detected with the aid of at least one, controlled video camera installed in the aircraft cabin and connected via the an-board computer to the aircraft transmitter. The terrorist is annihilated by shooting from remote-controlled small arms through the aircraft skin with employment of the control computer.

EFFECT: enhanced accuracy of weapon laying on terrorists.

5 cl, 6 dwg

FIELD: armament and military equipment, in particular, fighting vehicle firing at a target, for example, with the aid of machine-gun (gun) mountings.

SUBSTANCE: according to the invention, range correction tables verified for the whole range of temperature and air pressure variation are calculated before firings. Approximating coefficients for pressure and temperature are selected. The target is detected and identified and taken for tracking. Kinematic corrections for motion of the target and carrier are determined. The dummy firing range with due account made for the temperature and air pressure deviation from the normal values is determined. Ballistic corrections: elevation and drift angles for obtaining the dummy range, correction for cross and range ballistic winds, for the parallax of the sight and gun or submachine gun mounting are determined. Simultaneously with the approximating coefficients for pressure and temperature the coefficient of mutual effect of pressure and temperature is selected. The range correction for the joint effect of pressure and temperature is determined and with due account made for it the total correction is determined at calculation of the dummy range. The barrels of the gun (machine gun) mount are constantly deflected relative to the sighting line with due account made for the corrections, and firing at the target is carried out.

EFFECT: enhanced efficiency of firing of the fighting vehicle due to the enhanced accuracy of fire.

4 cl, 10 dwg

FIELD: FOR TELEORIENTATION OF GUIDED OBJECTIVES, OPTICAL SIGHT OF GUIDED MISSILE GUIDANCE SYSTEM AND PULSE SHAPER.

FIELD: remote control of flight vehicles.

SUBSTANCE: the invention consists in bringing the searchlight emission in the sighting channel, formation of elision only at the moments when the time intervals between the pulses are equal to the reference values, visualization of the emission that has passed through the sighting channel. Besides, defection of the emission that has passed through the sighting channel. Besides, deflection of the searchlight optical flux in two mutually perpendicular directions is accomplished, which provides for alignment of the sight optical axis and the searchlight information axis. A rotary prism is introduced in the guidance optical sight, and the sighting channel is made on the basis of a TV camera, monitor, sighting mark forming unit, and a sighting mark position control panel. Two AMD circuits and a series-connected decoder and an OR circuit with respective couplings are introduced in the pulse shaper.

EFFECT: enhanced accuracy of guidance of the controlled objective.

4 cl, 4 dwg, 1 ex

FIELD: armament and military equipment, in particular, fire of fighting vehicle by rocket projectiles from sheltered fire positions.

SUBSTANCE: according to the obtained data on the position and type of separate targets from the composition of the multiple target, assigned consumption of projectiles, depending on the characteristics of the used ammunition, accuracies of account of meteorological and ballistic conditions of fire and determination of the co-ordinates of the separate targets and fighting vehicle, a symmetrical fire zone is assigned for each separate target, locating the aiming points so that the function of the fire density would have the maximum in the pointed with the co-ordinates of the given separate target. Then, the possible unifications of the aiming points, located in the zones of intersection of the fire zones of the separate targets are performed, the summary construction of projectiles is calculated so that the calculated so that the calculated and assigned constructions of projectiles would coincide, after that the multiple target is subjected to fire.

EFFECT: reduced construction of ammunition at a guaranteed level of probability of target destruction.

3 cl, 7 dwg

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