RU2310152C1 - Method for firing of fighting vehicle at a target and system for its realization - Google Patents

Abstract

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

Description

The invention relates to the field of weapons and military equipment, in particular to firing a combat vehicle (BM) at a target, for example, using machine-gun (cannon) installations.

An analysis of the literature shows that there is a method of firing at the target of artillery weapons of armored vehicles (tanks, infantry fighting vehicles, etc.), which consists in detecting and identifying targets, tracking the target and calculating angular corrections in the computer, taking into account the temperature and air pressure, ballistic wind, obtained from the results of meteorological sounding, and firing taking them into account on the target / 1, Firing tables for lowland and mountainous conditions 100-mm guns - launchers installed in a combat vehicle Infantry BMP-3, Moscow, Military Publishing, 1992 /.

To implement this method on combat vehicles (BM), there is a firing system that includes a sighting and navigation system, a calculator, a stabilizer (power drive) installation, a cannon (machine gun) installation / 8, Uch. "Theory of shooting from tanks", ed. N.I. Romanova, M., Academy of Armored Forces named after Marshal Malinovsky R.Ya., 1973 /.

на отклонение i-ого фактора ΔХ_i The staffing tables for the firing of artillery weapons of armored vehicles, which are the documentary basis for the development of algorithmic and information support for on-board computer systems BM, contain corrections, as a rule, of the range, for changes in air pressure Н _В and temperature Т _В, respectively, by 10 mm Hg and 10 ° C as a function of range / 1, Firing tables for lowland and mountainous conditions of a 100-mm gun - launcher installed in infantry fighting vehicle BMP-3, Moscow, Military Publishing, 1992, 2, Ze itnye shooting table 30-mm high-explosive, incendiary and fragmentation tracer for the AP-18KD gun, Tula, 2001 /. And the total range correction ΔD _{Σ is} obtained as the algebraic sum of the products corresponding to the sensitivity

the deviation of the i-th factor ΔX _i

where ΔD is the range correction for changing the ith factor (when changing it in the range of ± 10 mmHg, ± 10 ° C, etc., respectively),

n is the number of recorded deviations,

- отклонение i-ого фактора на 10 ед. (±10 мм рт.ст., ±10°С и т.п.).

- deviation of the i-th factor by 10 units. (± 10 mmHg, ± 10 ° C, etc.).

Thus, it is assumed a linear dependence of deviations of externally ballistic parameters, for example, range, from the above disturbing factors and in the range of factors changing (for example, 460 mm Hg <H <820 mm Hg, -50 ° C <T <+ 50 ° C).

Such an assumption may lead to the appearance of significant systematic errors of firing (see FIGS. 1-5 / 3, Russian Patent No. 2234045. The method of firing a combat vehicle at a target and a system for its implementation. Bull. No. 22 dated 10.8.2004 /) and, accordingly to ineffective target shooting.

The disadvantage of this method and the system that implements it are large systematic errors that occur when deviations of meteorological factors, such as temperature and air pressure, from their normal values significantly exceed (in accordance with the statement of work) respectively ΔT _B = ± 10 ° C, ΔН _B = ± 10 mmHg

This leads to a decrease in accuracy and, accordingly, efficiency, especially when shooting at high-speed targets, in difficult meteorological conditions. This factor is especially emphasized when firing from closed positions with a new 100-mm projectile (ZUOF19) with an increased firing range.

и по температуре

, в обнаружении и распознавании цели, взятии на сопровождение и сопровождении цели, определении кинематических поправок на движение цели и носителя, включающем в том числе полетное время t_пол и дальность стрельбы D_у, определении фиктивной дальности стрельбы D_Ф с учетом отклонения температуры Т_В и давления Н_В воздуха от их нормальных значений, определении баллистических поправок: углов прицеливания α и деривации β_д для полученной фиктивной дальности D_Ф, определении поправок на скорость бокового W_Z и продольного W_Х баллистического ветра, на параллакс прицела и пушечной или пулеметной установки ПУ из математических выражений, постоянном отклонении с учетом их стволов ПУ относительно линии визирования и стрельбе по цели /3, Патент России №2234045. Способ стрельбы боевой машины по цели и система для его реализации. Бюл. №22 от 10.8.2004/.The closest technical solution, selected as a prototype, is a method of firing BM at a target, which consists in preliminary, before firing, calculating the adjusted over the entire range of temperature changes T _B and air pressure N _B for all firing ranges of the range correction table ΔD, and selecting approximating coefficients according to pressure

and in temperature

, in detecting and recognizing the target, taking for tracking and tracking the target, determining kinematic corrections for the movement of the target and carrier, including including flight time t _floor and firing range D _y , determining the fictitious firing range D _F taking into account temperature deviations T _B and _The air pressure H from their normal values, determining ballistic corrections: aiming angles α and β _d for the derivation obtained fictitious distance d _F, the determination of corrections for the speed of lateral and longitudinal W _Z W _X ballistic vet and, on the parallax of the sight and cannon or machine gun PU of mathematical expressions, constant rejection based on their trunks PU with respect to the line of sight and shooting at targets / 3, Russian Patent №2234045. A method of firing a combat vehicle at a target and a system for its implementation. Bull. No. 22 dated 10.8.2004 /.

The well-known BM target shooting system, selected as a prototype of the claimed system, contains a sighting and navigation system, a data unit on the external environment, the unit’s power drives and machine-gun or cannon launcher, an on-board computer system (AC), which includes the number of series-connected unit for accounting for amendments to the angle of aiming for temperature and air pressure, the first and second inputs of which are connected to the outputs of the environmental data unit, the third input - with the output of the forward unit range D _U , the unit for generating aiming angles α and derivation β _d , the outputs of which are connected to the inputs of the roll angle meter, the outputs of which are connected to the inputs of the power drives, as well as the device for determining lead angles, which in turn includes a block formation of the lead angle Δβ, correction block for ballistic wind along the horizontal channel, block for correction for parallax along the horizontal channel, block for formation of the lead angle Δε, correction block for longitudinal wind along the vertical channel, block pop avki parallax in the vertical channel generating unit preemption distance D _from, the flight time generating unit t _floor whose inputs are connected via respective inputs onboard aircraft with outputs observation-sighting, navigation systems and the data block of the external environment, as well as to the outputs of the respective blocks included in the device for determining lead angles / 3, Russian Patent No. 2234045. A method of firing a combat vehicle at a target and a system for its implementation. Bull. No. 22 dated 10.8.2004 /.

However, as further calculations showed, the dependences proposed in the method give acceptable accuracy only if the corresponding disturbing deviations are not simultaneous. Moreover, the greatest influence on each other is exerted by corrections in pressure and air temperature. The disadvantage of the above method and the system that implements it are large systematic errors arising from simultaneous (joint) deviations of meteorological ballistic factors, for example, air temperature and pressure, from their normal values, especially when deviations significantly exceed (in accordance with the statement of work) ΔТ _B = ± 10 ° С, ΔН _В = ± 10 mm Hg

The objective of the proposed method and its implementing system is to increase the firing efficiency of BM by increasing the accuracy of firing due to the fact that a correction is introduced for the combined effect of parameters, such as temperature and air pressure.

и по температуре

, в обнаружении и распознавании цели, взятии на сопровождение и сопровождении цели, определении кинематических поправок на движение цели и носителя, включающем в том числе полетное время t_пол и дальность стрельбы D_У, определении фиктивной дальности стрельбы D_Ф с учетом отклонения температуры Т_В и давления Н_В воздуха от их нормальных значений, определении баллистических поправок: углов прицеливания α и деривации β_д для полученной фиктивной дальности D_Ф, определении поправок на скорость бокового W_Z и продольного W_X баллистического ветра, на параллакс прицела и пушечной или пулеметной установки ПУ из математических выражений, постоянном отклонении с учетом их стволов ПУ относительно линии визирования и стрельбе по цели, согласно изобретению дополнительно одновременно с коэффициентами

,

подбирают коэффициент взаимного влияния параметров

, определяют поправку в дальность на совместное действие параметров ΔD_H,T и с учетом ее определяют суммарную поправку при расчете фиктивной дальности D_Ф.The problem is solved in that in the known method of firing BM, which consists in preliminary, before firing, calculating the corrected over the entire range of changes in temperature T _B and air pressure N _B for all firing ranges, the range correction table ΔD, the selection of approximating coefficients according to pressure

and in temperature

, in detecting and recognizing the target, taking for tracking and tracking the target, determining kinematic corrections for the movement of the target and carrier, including including flight time t _floor and firing range D _U , determining the fictitious firing range D _F taking into account temperature deviations T _B and pressure Н _{В of} air from their normal values, determination of ballistic corrections: aiming angles α and derivation β _d for the obtained fictitious range D _Ф , determination of corrections for lateral speed W _Z and longitudinal W _X ballistic wind a, on the parallax of the sight and the cannon or machine-gun mount of the PU from mathematical expressions, the constant deviation taking into account their barrels of the PU relative to the line of sight and shooting at the target, according to the invention, additionally simultaneously with

,

select the coefficient of mutual influence of the parameters

, determine the range correction for the combined action of the parameters ΔD _{H, T} and taking into account it determine the total correction in the calculation of the fictitious range D _f .

The range correction for the combined action of the parameters ΔD _{H, T} is determined from the relation

Where

and the total correction is from the relation

ΔD _Σ = ΔD _H + ΔD _T + ΔD _{H, T.}

The problem is solved in the same way that in the well-known BM firing system for a target containing a sighting, navigation, navigation system, a block of data on the external environment, power drives of the installation and a machine gun or cannon mount, an on-board computer system (AF), which includes including a series-connected unit for recording amendments to the angle of aiming for temperature and air pressure, the first and second inputs of which are connected to the outputs of the environmental data unit, the third input - with the output of the formation unit range D _y , the unit for generating the aiming angle α and derivation β _d , the roll angle meter, the outputs of which are connected to the inputs of the power drives, as well as the lead angle determination device, which in turn includes, in turn, a lead angle forming unit Δβ, a block for correcting ballistic wind along a horizontal channel, a block for correcting for parallax along a horizontal channel, a block for generating a lead angle Δε, a block for correcting for longitudinal wind along a vertical channel, a block for correcting for parallax along a vertical channel, the unit of formation of the anticipated range D _y , the unit of formation of flight time t _floor , the inputs of which are connected through the corresponding inputs of the aircraft with the outputs of the sighting, navigation systems and data block on the external environment, as well as with the outputs of the respective blocks included in the device for determining angles anticipations, according to the invention, an additional metering unit for the mutual influence of parameters is introduced, the first and second inputs of which are connected to the outputs of the metering unit for amendments to the aiming angle for temperature and pressure ozduha, the third - the first output of the block forming feedforward range, the output - to the input of boresight angles generation unit α and the derivation β _d, the first or second outputs are connected to first and second inputs accounting unit elevation angle, a third input connected (via sun inputs ) with the second output of the survey and sighting system unit, and the first or second outputs of the elevation metering unit are connected to the seventh-eighth inputs of the roll angle metering unit.

.In a particular case, the unit for taking into account the mutual influence of the parameters includes a series-connected multiplier and an adder, the first or second inputs of which are connected respectively to the first or second outputs of the unit for recording corrections in the angle of aiming for air temperature and pressure, and the third input of the adder is connected to the output of the unit and its output is connected to the input of the block for generating aiming and derivation angles, and the third input of the multiplying device is connected to the setpoint of the reciprocal of the accounting coefficient Impact of parameters

.

,

- соответственно по давлению и температуре дополнительно определяют коэффициент взаимного влияния параметров

и с учетом его определяют поправку при расчете фиктивной дальности D_Ф, например из соотношенияComparative analysis of the inventive solutions with prototypes demonstrated that the method differs from the known fact that previously before firing after calculating refined throughout the range of change of the temperature T _B and pressure H _in air for all ranges of firing tables range correction ΔD and selection of the approximating function coefficients ΔD ^{H ( T)} = ΔD ^{H (T)} (D, ΔH (ΔT)) -

,

- respectively, the pressure and temperature additionally determine the coefficient of mutual influence of the parameters

and taking into account it determine the correction when calculating the fictitious range D _f , for example, from the relation

ΔHΔT,ΔD _{H, T} =

ΔHΔT,

and fictitious firing range is determined taking into account this correction from the ratio

D _f = D + ΔD _H + ΔD _T + ΔD _{H, T.}

In the prototype / 3 /, the necessity of taking into account the nonlinear dependence of range deviations from disturbing factors is proved, since when using the linear dependences ΔD (ΔН _В ), ΔD (ΔТ _В ), large systematic errors can occur when calculating corrections. So, for a 3UOF19 projectile at a firing range of D = 7 km at an air pressure of 460 mm Hg. (ΔН = -290 mm Hg), the error in generating the correction reaches 200 m (ΔD = 1150 m in the nonlinear dependence and ΔD = 950 m in the linear approximation), see Figures 2-5 / 3 /.

The sufficiency of the proposed quadratic dependence is confirmed by the test (verification) tables displayed in FIGS. 6, 7/3 /, where the specified tabular and approximating dependences ΔD (ΔН _B ), ΔD (ΔТ _B ) are given. As follows from the graphs, a systematic approximation error is absent when considering the values of pressure and air temperature in the entire range of their change in accordance with the TOR. However, it should be noted that in this case, cases of independent deviation of the parameters were considered: either by temperature or by air pressure.

Errors will increase significantly with the combined action of two or more disturbing factors, for example, at low pressure and high temperature, low temperature and high pressure.

Figure 1-4 shows the errors of neglecting the mutual influence of corrections in pressure and air temperature under extreme conditions (1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg, T = -50 ° C, 3 - H = 460 mm Hg, T = + 50 ° C, 4 - H = 460 mm Hg, T = -50 ° C).

As follows from the graphs, the errors in determining the range of D _f can reach tens or even hundreds of meters at the maximum deviations of the parameters. Moreover, the largest deviations are observed with the following critical combination of deviations of the parameters: N = 460 mm Hg, T = -50 ° C. In this case, for example, for a ZUOF19 projectile at a range of D = 6000 m, the error δΔD reaches 335 m.

Let us summarize the methodological base for the dependencies proposed in the method.

As was shown in / 3 /, external ballistic characteristics, for example, the aiming angle and flight time, are generally nonlinear functions of several variables, primarily, range.

при заданном угле прицеливания как функцию вектора независимых переменных

в ряд Тейлора, получаем:Then, decomposing the external ballistic characteristic, for example, the firing range

for a given aiming angle as a function of the vector of independent variables

in the Taylor series, we get:

Where

R is the residual term.

, ее линеаризованным приближениемHowever, in the existing theory of corrections, they are based on the assumption that the deviations Δα _{i are} small from their nominal values and, up to second-order values, replace the original function, for example, the distance to the target

, its linearized approximation

The artillery weapons firing tables (TS) so far used in military technology, for example, / 1, 2 /, suggest such an allowance for linear deviations of the firing conditions (air temperature and pressure, charge temperature, wind speed). Moreover, when calculating the vehicle range deviations were considered in the deviation ranges of the parameters, respectively, from +10 to -10 mm Hg, from +10 to -10 ° C, from +10 to -10 m / s.

However, an analysis of the conditions for the combat use of modern military equipment, in particular armored vehicles, shows a significant excess of the ranges of changes in environmental conditions declared in the technical specifications (TK) and tactical and technical requirements (TTT) compared with the above table ones. According to the statement of work, the control system of combat vehicles provides for work in various climatic conditions: atmospheric pressure from 460 to 820 mm Hg, air temperature from minus 50 to plus 65 ° С.

Thus, the earlier assumptions about the linear dependence, symmetry and mutual independence of range corrections from the above disturbing factors become incorrect in real conditions of combat use. The first two assumptions are investigated in detail in / 3 / and methods for eliminating the considered type of errors are also proposed there.

Imagine the dependence (1) in the following form:

Comparing the above dependence (3) with the dependencies proposed in / 3 /, it can be noted that during decomposition we leave three terms and, thus, neglect the mutual influence of the parameters.

. Коэффициент

является функцией дальности, давления и температуры воздуха. Целесообразнее переписать четвертый член зависимости (4), характеризующий взаимное влияние давления и температуры воздуха, в виде

, ΔD_H ΔD_T. В этом случае зависимость от давления и температуры воздуха в основном сосредотачивается в ΔD_H и ΔD_T, а коэффициент

зависит в основном от дальности, что позволяет усреднить его на всем диапазоне изменения давления и температуры с минимальной погрешностью и представить, например, в виде полинома от дальностиObviously, the mutual influence of the deflecting parameters is characterized by the fourth term in dependence (4), in our case, when the deviation in pressure and air temperature is

. Coefficient

is a function of range, pressure and air temperature. It is more expedient to rewrite the fourth term of dependence (4), characterizing the mutual influence of pressure and air temperature, in the form

, ΔD _H ΔD _T. In this case, the dependence on pressure and air temperature is mainly concentrated in ΔD _H and ΔD _T , and the coefficient

depends mainly on the range, which allows it to be averaged over the entire range of pressure and temperature with a minimum error and presented, for example, as a polynomial in range

And the correction for the simultaneous deviation of pressure and air temperature is proposed to be calculated according to the dependence

where D is the firing range;

ΔD _H , ΔD _T - correction for range due to deviations, respectively, of pressure and air temperature,

- коэффициенты аппроксимации коэффициента взаимного влияния параметров

полиномом третьей степени от дальности.

- coefficients of approximation of the coefficient of mutual influence of parameters

third degree polynomial in range.

And the aiming angle α is determined for the fictitious range D _f from the main dependence

α = α (D _Ф ),

where D _Ф = D + ΔD _Σ .

Figure 5-8 shows the corrections for the simultaneous effect of pressure and air temperature for 3UOF19, 3UOF17, 3UOF8, ZUBR6 shells actual (obtained by calculating on a complete standardized system of differential equations), as well as obtained by the proposed method under extreme conditions: 1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg, T = -50 ° C, 3 - H = 460 mm Hg, T = + 50 ° C 4 - N = 460 mm Hg, T = -50 ° C.

The additional introduction of a correction for the joint deviation of weather conditions (dependences (5)) allows us to reduce the error in determining the range correction: due to averaging of the corrections, an error of not more than 1-2 m occurs, and due to approximation, no more than 5 m for 100 mm shells and not more than 9 m for 30 mm shells.

Thus, a technique has been developed to take into account the combined effect of pressure and air temperature on external ballistic characteristics. It is intended, first of all, for the implementation of combat vehicles in the firing algorithm.

The analysis of known methods of firing BM at targets in this technical field does not allow us to identify in them the totality of signs that disconnect the claimed solution from the prototype.

The individual operations included in the inventive method are widely known. However, when they are introduced into the method in the indicated sequence (connection) according to the proposed ratios, the desired effect is achieved - increasing the efficiency of shooting at the target.

When studying technical solutions in other areas of technology, the features that distinguish the claimed invention — the BM firing system for the target — were also not revealed.

This allows us to conclude that the proposed solutions meet the criteria of novelty and inventive step.

Figure 1 shows the errors of neglecting the mutual influence of corrections in pressure and air temperature δΔD _{H, T} under extreme conditions: 1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg ., Т = -50 ° С, 3 - Н = 460 mm Hg, T = + 50 ° С, 4 - Н = 460 mm Hg, Т = -50 ° С for 3UOF19 shells.

Figure 2 shows the errors of neglecting the mutual influence of corrections in pressure and air temperature under extreme conditions: 1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg, T = -50 ° С, 3 - Н = 460 mm Hg, Т = + 50 ° С, 4 - Н = 460 mm Hg, Т = -50 ° С for 3UOF17 shells.

Figure 3 shows the errors of neglecting the mutual influence of corrections in pressure and air temperature under extreme conditions: 1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg, T = -50 ° С, 3 - Н = 460 mm Hg, Т = + 50 ° С, 4 - Н = 460 mm Hg, Т = -50 ° С for ZUOF8 shells.

Figure 4 shows the errors of neglecting the mutual influence of corrections in pressure and air temperature under extreme conditions: 1 - N = 800 mm Hg, T = + 50 ° C, 2 - H = 800 mm Hg, T = -50 ° С, 3 - Н = 460 mm Hg, Т = + 50 ° С, 4 - Н = 460 mm Hg, Т = -50 ° С for 3UBR6 shells.

Figure 5 presents the dependences of the resulting correction for pressure and air temperature ΔD _{H, T} on the firing range for the 3UOF19 projectile after introducing the correction on the mutual influence of temperature and air pressure.

For comparison, the curves ΔD _{H, T are given} for calculation using the complete standardized system of differential equations / 9 / (actual) and reproduced using approximating dependences (calculated).

Figure 6 presents the dependence of the resulting correction for pressure and air temperature ΔD _{H, T} on the firing range for 3UOF17 projectile.

Figure 7 presents the dependences of the resulting correction for pressure and air temperature ΔD _{H, T} on the firing range for 3UOF8 projectile.

On Fig presents the dependence of the resulting correction for pressure and air temperature ΔD _{H, T} on the firing range for the projectile 3UBR6.

Figure 9 (a, b) shows a structural diagram of the firing contour of artillery weapons BM (paragraph 2 of the claims).

Figure 10 presents an example implementation of a unit for accounting the mutual influence of parameter amendments (paragraph 4 of the claims).

To confirm the technical feasibility of the proposed method (and system) below is an example of its functioning.

,

в прицельной системе координат X_DY_DZ_D, а также дискретные замеры дальности D (см. фиг.9). С навигационной системы в ВС поступают также данные о носителе: скорость носителя, углы тангажа, крена и т.п.After tracking the target from the sighting system, the computer system (BC) continuously receives signals about the angles of the line of sight of the target β and ε in two planes of the coordinate system associated with the carrier X _N Y _N Z _N , angular velocities

,

in the aiming coordinate system X _D Y _D Z _D , as well as discrete measurements of the range D (see Fig.9). From the navigation system, the aircraft also receives data about the carrier: carrier speed, pitch, roll, etc.

.Previously, the approximation coefficients of nonlinear dependencies ΔD (D, ΔH _B ), ΔD (D, ΔT _B ), ΔD (D, ΔН _B , ΔТ _B ) of the adjusted amendment tables should be entered (calculated)

.

Data on the external environment (air pressure, its temperature, longitudinal and transverse wind speed) comes from a block of data on the external environment, for example, from a single universal atmospheric sensor.

Based on the information received, the corrections caused by the movement of the target and the carrier Δβ, Δε, as well as other corrections, in particular ballistic corrections, for the base (parallax), for longitudinal and transverse winds, etc., are calculated in the device for determining lead angles. A sufficiently detailed calculation of them is given in the literature / 3 /.

Before computing ballistic corrections: boresight angle a and β _d derivation block accounting corrections in sighting angle block and the mutual influence parameters determined fictitious firing distance D _F, taking into account the perturbations due to meteorological conditions -? H _B? T _B.

And, entering the main ballistic dependence α (D) already with D = D _Ф , the aiming angles α = α (D, ΔН _В , ΔТ _В ) = α (D _Ф ) and derivation β = β (α) in the generation block are determined angles of aiming and derivation, which are then adjusted taking into account the elevation angle ε.

Next, the combination of the worked out corrections for each of the channels goes to the inputs of the roll angle meter γ, and the control signals generated taking into account γ go to the input of the power drive.

The power drives of the turret and weapons, working out the control signals taking into account the feedback, at each moment of time deploy launchers in the right direction.

The unit of accounting for the mutual influence of the parameters (in the angle of aim) works as follows (see figure 10).

. Полученное произведение ΔD_Н,Т поступает на четвертый вход сумматора СУМ, где суммируется с поправками по дальности ΔD_Н и ΔD_Т, а также с упрежденной дальностью D_У, поступающей с блока формирования упрежденной дальности.The first and second inputs of MU and SUM are received from the output of the correction metering unit into the angle of aiming of the correction to the range for pressure ΔD _N and air temperature ΔD _T. In MU, these two signals are multiplied, and their product is multiplied by the coefficient of consideration of the mutual influence of the parameters

. The resulting product ΔD _{Н, Т} enters the fourth input of the SUM adder, where it is summed with corrections in range ΔD _Н and ΔD _Т , as well as with the anticipated range D _U coming from the unit of formation of the anticipated range.

A unit for taking into account the mutual influence of parameters can be built on well-known devices such as a multiplying device (MU), an adder (CS), etc., logical elements “and”, “or”, examples of which are widely given in the relevant literature, for example / 6 , 7 /.

Using the claimed method and the system implementing it will provide the following advantages over existing ones.

1. Elimination of systematic errors in the entire range of changes in temperature and air pressure (in accordance with the statement of work) and, accordingly, improving the accuracy of firing at targets in conditions of disturbances by meteorological factors exceeding, respectively, ΔТ _В = ± 10 ° С and ΔН _В = ± 10 mm Hg, including in the case of their simultaneous (joint) action.

2. A more accurate determination of the ultimate ballistic firing range will allow more rational use of ammunition and, accordingly, increase the effectiveness of firing given ammunition.

3. Improving the ergonomic characteristics of systems due to more reliable information about the fact that the target was in the shooting zone.

INFORMATION SOURCES

1. Shooting tables for lowland and mountainous conditions 100-mm guns - launchers installed in the infantry fighting vehicle BMP-3, Moscow, Moscow, Military Publishing, 1992.

2. Antiaircraft firing tables for a 30-mm high-explosive incendiary and fragmentation tracer shell for the AP-18KD gun, Tula, 2001.

3. Patent of Russia No. 2234045. A method of firing a combat vehicle at a target and a system for its implementation. Bull. No. 22 dated 10.8.2004 (prototype).

4. A.A. Konovalov, Yu.V. Nikolaev. External ballistics. M., Central Research Institute of Information, 1979.

5. A.G. Postnikov, B.C. Chuyko. External ballistics of unguided aircraft missiles and shells. Moscow, "Engineering", 1985.

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Claims (4)

1. The method of firing a combat vehicle (BM) on a target, which consists in preliminary, before firing, calculating the air temperature corrections specified for the entire range of temperature changes Т _В and air pressure Н _В for all firing ranges ΔD, selecting approximating coefficients according to pressure

and in temperature

for determining the fictitious firing range, in detecting and recognizing the target, taking for tracking and tracking the target, determining kinematic corrections for the movement of the target and carrier, including flight time and firing range, determining the fictitious firing range D _F taking into account the temperature deviation T _B and pressure N _The air from their normal values, determining ballistic corrections - and aiming angles for the derivation obtained fictitious distance D _F, the determination of corrections for the speed of lateral and longitudinal ball ation wind parallax gun sight or a machine-gun unit (PU) of mathematical expressions, constant deviation with regard to their relative shafts PU line of sight and firing at a target, characterized in that it further simultaneously with coefficients

,

calculate the coefficient of mutual influence of temperature and air pressure

, determine the range correction for the combined effect of temperature and air pressure ΔD _{H, T,} and taking it into account, determine the total correction when calculating the fictitious range D _f . 2. The method according to claim 1, characterized in that the range correction for the combined action of the parameters ΔD _{H, T} is determined from the ratio

Where

and the total correction is from the relation ΔD _Σ = ΔD _H + ΔD _T + ΔD _{H, T} , where D is the firing range; ΔD _N , ΔD _T - correction for range due to deviations, respectively, of pressure and air temperature;

- coefficients of approximation of the coefficient of mutual influence

third degree polynomial in range. 3. BM firing system for a target, containing a sighting, navigation, navigation system, data block on the external environment, power drives, machine-gun or cannon launcher, on-board computer system (BC), containing a unit for recording corrections in the angle of aim for temperature and air pressure , the first and second inputs of which are connected to the outputs of the environmental data unit, the third input - with the output of the pre-range formation unit, the unit for generating aiming and derivation angles, the roll angle meter, the outputs of which are connected inputs of power drives, as well as a device for determining lead angles, including a block for generating a lead angle, a block for correcting ballistic wind along a horizontal channel, a block for adjusting for parallax along a horizontal channel, a block for forming an angle of lead for a heading, a block for correcting longitudinal wind along a vertical channel, and a correction block to parallax along the vertical channel, the unit of formation of the anticipated range, the unit of formation of flight time, the inputs of which are connected through the corresponding inputs of the aircraft from the output and survey-sighting, navigation systems and a block of data on the external environment, as well as with the outputs of the corresponding blocks included in the device for determining lead angles, characterized in that an additional block is introduced for the mutual influence of the parameters, the first or second inputs of which are connected to the first the second outputs of the block accounting corrections in the angle of aiming for temperature and air pressure, the third input - with the unit of formation of the anticipated range, and its output is connected to the input of the block generating angles of aiming and derivation, per first-second outputs are connected to second inputs of the first-unit accounting elevation angle, the third input of which is connected via a sun inputs to the second output of the observation-sighting system and the outputs of which are connected to the inputs accounting unit roll angle. 4. The system according to claim 3, characterized in that the unit for taking into account the mutual influence of the parameters contains a series-connected multiplier and an adder, the first and second inputs of which are connected respectively to the first second outputs of the unit for accounting for amendments to the angle of aiming for temperature and air pressure, the third input the adder is connected to the output of the unit of formation of the anticipated range, and its output is connected to the input of the block generating angles of aiming and derivation, and the third input of the multiplying device is connected to the master factor This takes into account the mutual influence of the parameters.

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