Multi-projectile strike damage effect calculation method and system considering task reliability

Abstract

The invention discloses a multi-projectile strike damage effect calculation method and system considering a task success rate. The multi-bomb strike damage effect calculation method comprises the following steps: determining system deviation and standard deviation of a bomb drop point corresponding to a bomb explosion point in a target coordinate system along x-axis and y-axis directions and a correlation coefficient between a horizontal coordinate and a vertical coordinate of the bomb drop point in the target coordinate system; determining an actual explosion point space distribution model of each bomb; the survival probability of each bomb before delivery, the probability of explosion after delivery to the target area and the penetration probability are obtained, so that the task reliability of each bomb is determined; and selecting a target damage model, and determining the damage effect of the combined strike of the plurality of bombs on different types of targets by utilizing the target damage model, the task reliability of each bomb and the actual explosion point spatial distribution model of each bomb. According to the method, the ammunition consumption and the damage effect of the multi-ammunition combined hitting ground target can be accurately estimated, and the feasibility of a multi-ammunition combined hitting scheme is improved.

Description

Technical Field

[0001] The present invention belongs to the field of military operations technology, and in particular relates to a method and system for calculating the damage effect of multiple projectile strikes taking mission reliability into consideration. Background Art

[0002] The damage effect of a guided bomb of a given power on a ground target is directly related to the bomb's blast effect, target destruction, and the spatial distribution of the blast point. Existing methods for calculating the damage effect of a multi-bomb joint strike fail to consider the direct impact of mission reliability factors such as the bomb's ability to explode near the target, its delivery reliability, technical reliability, and survivability. This results in inaccurate damage effects from multi-bomb strikes, making it impossible to accurately estimate bomb consumption and limiting the feasibility of multi-bomb joint strike plans. Summary of the Invention

[0003] One of the purposes of the present invention is to provide a method for calculating the damage effect of multiple missile strikes taking into account mission reliability. This method can accurately estimate the missile consumption and the damage effect of multiple missile joint strikes on ground targets, thereby improving the feasibility of the multiple missile joint strike plan.

[0004] A second object of the present invention is to provide a multi-projectile strike damage effect calculation system that takes mission reliability into consideration.

[0005] In order to achieve one of the above purposes, the present invention adopts the following technical solutions:

[0006] A method for calculating damage effects of multiple projectile strikes taking into account mission reliability, the method comprising:

[0007] Step S1: constructing a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system;

[0008] Step S2: using the system deviation, standard deviation and correlation coefficient, determine the spatial distribution model of the actual explosion point of each bomb;

[0009] Step S3: Obtain the survival probability of each bomb before delivery, the probability of explosion upon delivery to the target area, and the penetration probability to determine the mission reliability of each bomb;

[0010] Step S4: Select a target damage model, and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

[0011] Furthermore, the specific implementation process of step S1 includes:

[0012] Step S11: constructing a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation, and lateral standard deviation of the bomb landing point in the delivery coordinate system;

[0013] Step S12: construct a target coordinate system with the center of the target area as the origin, and east and north as the x-axis and y-axis, respectively, to determine a third angle between the bomb delivery direction and the x-axis in the target coordinate system;

[0014] Step S13: Calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation, the lateral standard deviation, and the third angle of the bomb drop point in the delivery coordinate system.

[0015] Furthermore, the specific implementation process of step S2 includes:

[0016] Step S21, obtaining a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding explosion height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding explosion height is located;

[0017] Step S22: Calculate the equivalent aiming point of the bomb in the target coordinate system using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb;

[0018] Step S23: Determine the spatial distribution model of the actual explosion point of each bomb using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop points along the x-axis and y-axis in the target coordinate system.

[0019] Furthermore, in step S4, the specific process of determining the damage effect of the joint attack of multiple bombs on different types of targets includes:

[0020] Step S41: Determine the damage probability function of each bomb explosion on the point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the actual explosion points of the bombs, and further determine a first damage effect function of the joint attack of multiple bombs on the point target represented by the damage probability;

[0021] Step S42: performing length integration processing on the first damage effect function along the length direction of the line target to obtain a second damage effect function of the multiple bombs jointly striking the line target represented by the average damage length;

[0022] Step S43: performing area integration processing on the first damage effect function along the surface target area to obtain a third damage effect function of a joint attack of multiple bombs on the surface target represented by an average damage area;

[0023] Step S44: Using the first damage effect function, the second damage effect function, and the third damage effect function, evaluate the damage effect of a joint attack by multiple bombs.

[0024] In order to achieve the second of the above objectives, the present invention adopts the following technical solutions:

[0025] A multi-projectile strike damage effect calculation system considering mission reliability, the multi-projectile strike damage effect calculation system comprising:

[0026] A construction module is used to construct a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system;

[0027] A first determination module is used to determine a spatial distribution model of the actual explosion point of each bomb using the system deviation, standard deviation and correlation coefficient;

[0028] The acquisition module is used to obtain the survival probability of each bomb before delivery, the probability of explosion after delivery to the target area, and the probability of penetration, so as to determine the mission reliability of each bomb;

[0029] The second determination module is used to select a target damage model and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

[0030] Furthermore, the building blocks include:

[0031] The first construction submodule is used to construct a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, so as to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation and lateral standard deviation of the bomb landing point in the delivery coordinate system;

[0032] The second construction submodule is used to construct a target coordinate system with the center of the target area as the origin and the east and north as the x-axis and y-axis respectively, so as to determine the third angle between the bomb delivery direction and the x-axis in the target coordinate system;

[0033] The first calculation submodule is used to calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, by using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation and the lateral standard deviation and the third angle of the bomb drop point in the delivery coordinate system.

[0034] Furthermore, the first determining module includes:

[0035] an acquisition submodule, for acquiring a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding burst height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding burst height is located;

[0036] The second calculation submodule is used to calculate the equivalent aiming point of the bomb in the target coordinate system by using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb;

[0037] The first determination submodule is used to determine the spatial distribution model of the actual explosion point of each bomb by using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop point along the x-axis and y-axis directions in the target coordinate system.

[0038] Furthermore, the second determining module includes:

[0039] A second determination submodule is configured to determine a damage probability function of each bomb's successful explosion on a point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the bomb's actual explosion points, and further determine a first damage effect function of the multiple bombs' joint attack on the point target represented by the damage probability;

[0040] a length integral processing submodule, configured to perform length integral processing on the first damage effect function along the length direction of the linear target to obtain a second damage effect function of a plurality of bombs jointly striking the linear target represented by an average damage length;

[0041] an area integral processing submodule, configured to perform area integral processing on the first damage effect function along the surface target area to obtain a third damage effect function of a joint attack of multiple bombs on the surface target represented by an average damage area;

[0042] The damage effect evaluation submodule is used to evaluate the damage effect of a joint attack of multiple bombs using the first damage effect function, the second damage effect function and the third damage effect function.

[0043] In summary, the technical solution of the present invention has the following technical effects:

[0044] The present invention uses system deviation, standard deviation and correlation coefficient to determine the spatial distribution model of the actual explosion point of each bomb, thereby ensuring the consistency between the spatial distribution model of the actual explosion point of each bomb and the spatial distribution of explosion points in the actual scene, and improving the accuracy of the spatial distribution model of the actual explosion point of each bomb; through the pre-selected target damage model, the mission reliability of each bomb and the spatial distribution model of the actual explosion point of each bomb, the damage effect of a joint attack of multiple bombs on different types of targets is calculated taking into account the mission reliability of each bomb, further ensuring the accuracy of the damage effect of the joint attack of multiple bombs on the target, improving the accuracy of the calculation of the bomb consumption in the attack plan, and ensuring the feasibility of the multi-bomb joint attack plan. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 2 is a flow chart of a method for calculating damage effects of multiple projectile strikes taking into account mission reliability according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0048] This embodiment provides a method for calculating the damage effect of multiple missile strikes taking into account mission reliability. Figure 1 The calculation method of the damage effect of multiple projectile strikes includes:

[0049] Step S1: constructing a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system.

[0050] With the aiming point of the i-th bomb as the origin, the delivery coordinate system of the i-th bomb is established, and the coordinate axes are selected as the delivery direction L of the i-th bomb i (longitudinal direction) and its vertical direction H i(horizontally), determine the longitudinal system deviation σ of the bomb drop point in the delivery coordinate system L i. Lateral system deviation σ Hi , longitudinal standard deviation σ Li and the horizontal standard deviation σ Hi .

[0051] With the center of the target area as the origin, establish the target coordinate system, with the x-axis and y-axis generally pointing to the east and north respectively. i The angle relative to the x-axis of the target coordinate system is β i (i.e., the third angle between the delivery direction of the i-th bomb and the x-axis in the target coordinate system), the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis corresponding to the bomb explosion point in the target coordinate system, as well as the correlation coefficient between the horizontal and vertical coordinates of the bomb drop point in the target coordinate system can be obtained. The specific implementation process includes:

[0052] Step S11: constructing a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation, and lateral standard deviation of the bomb landing point in the delivery coordinate system;

[0053] Step S12: construct a target coordinate system with the center of the target area as the origin, and east and north as the x-axis and y-axis, respectively, to determine a third angle between the bomb delivery direction and the x-axis in the target coordinate system;

[0054] Step S13: Calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation, the lateral standard deviation, and the third angle of the bomb drop point in the delivery coordinate system.

[0055] In this embodiment, the systematic deviation, standard deviation and correlation coefficient of the bomb drop point along the x-axis and y-axis in the target coordinate system are:

[0056] μ xi =μ Li cosβ i —μ Hi sinβ i

[0057] μ yi =μ Li sinβ i +μ Hi cosβ i

[0058]

[0059] Among them, μ xi and μ yi are the system deviations of the i-th bomb landing point along the x-axis and y-axis in the target coordinate system; σ xi and σ yi are the standard deviations of the i-th bomb landing point along the x-axis and y-axis in the target coordinate system; ρ i is the correlation coefficient between the horizontal and vertical coordinates of the i-th bomb landing point in the target coordinate system; μ Li and μ Hi are the longitudinal system deviation and lateral system deviation of the i-th bomb landing point in the delivery coordinate system; σ Li and σ Hi are the longitudinal standard deviation and lateral standard deviation of the i-th bomb landing point in the delivery coordinate system; β i is the third angle between the delivery direction of the i-th bomb and the x-axis in the target coordinate system.

[0060] Step S2: using the system deviation, standard deviation and correlation coefficient, determine the spatial distribution model of the actual explosion point of each bomb.

[0061] In this embodiment, the aiming point of the i-th bomb is at the corresponding binding explosion height h ti On the horizontal plane, the position of the aiming point of the i-th bomb in the target coordinate system is Because the bomb has deviation in the explosion height direction, the actual explosion height h i With binding explosion high h ti The explosion point is not on the same horizontal plane, which means the actual explosion point is not on the horizontal plane where the binding height is. The spatial position of the bomb explosion point is W. hi (X hi , h i ).

[0062] Assume that the i-th bomb is bound at a height h ti The velocity vector of the i-th bomb is approximately in a straight line near the binding explosion height h. ti The angle between the projection of the horizontal plane and the x-axis of the target coordinate system is γ i (i.e. the first angle between the projection of each bomb's velocity vector on the horizontal plane where the binding height is located and the x-axis of the target coordinate system at the bomb explosion point), the angle between each bomb's velocity vector and the horizontal plane where the binding height is located is θ i (i.e. the second angle between the velocity vector of each bomb and the horizontal plane where the binding burst height is located). i There is an equivalent aiming point X on the horizontal plane ti .

[0063] Assume that the binding height of the i-th bomb is h ti, only the explosion effect of the bomb in the air above the target is considered. Since the explosion height and the landing point control are independent of each other, the system error in the height direction can be ignored (i.e., μ hi =0). The height of the explosion point of the i-th bomb (i.e., the actual explosion height) h i is a normally distributed random variable with a probability density of:

[0064]

[0065] Among them, σ hi is the standard deviation of the explosion height of the i-th bomb.

[0066] Assume that the actual explosion height of the i-th bomb is h i Given the given conditions, the horizontal position of the (actual) explosion point of the i-th bomb (i.e. the bomb landing point) is X hi The conditional probability density is:

[0067]

[0068] According to probability theory, the i-th bomb falls at point X hi The conditional probability density can also be expressed as:

[0069]

[0070] In fact, the actual explosion height of the i-th bomb is h i is an unknown random quantity, the explosion point of the i-th bomb is W hi is a three-dimensional random variable. Substituting equations (2) and (3) into equation (4), we can obtain W hi Spatial distribution model (i.e. the spatial distribution model of the actual explosion point of each bomb).

[0071] In summary, the specific implementation process of this step includes:

[0072] Step S21: Obtain a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding burst height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding burst height is located.

[0073] Step S22: Calculate the equivalent aiming point of the bomb in the target coordinate system using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb.

[0074] The equivalent aiming point of each bomb in the target coordinate system in this embodiment is:

[0075]

[0076] Among them, (x ti ,y ti) is the equivalent aiming point X of the i-th bomb in the target coordinate system ti The location coordinates of is the aiming point of the i-th bomb in the target coordinate system The position coordinates of h i and h ti are the actual explosion height and binding explosion height of the i-th bomb respectively; γ i and θ i are the first angle and the second angle of the i-th bomb, respectively (i.e., the first angle between the projection of the i-th bomb velocity vector at the bomb explosion point on the horizontal plane where the binding burst height is located and the x-axis of the target coordinate system, and the second angle between the i-th bomb velocity vector and the horizontal plane where the binding burst height is located).

[0077] Step S23: Determine the spatial distribution model of the actual explosion point of each bomb using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop points along the x-axis and y-axis in the target coordinate system.

[0078] The spatial distribution model of the actual explosion point of each bomb in this embodiment is:

[0079]

[0080] in, is the spatial distribution model of the actual explosion point of the i-th bomb; W hi is the spatial position of the explosion point of the i-th bomb; is the aiming point of the i-th bomb in the target coordinate system; (x hi ,y hi ) is the landing point X of the i-th bomb in the target coordinate system hi The position coordinates of (x ti ,y ti ) is the equivalent aiming point X of the i-th bomb in the target coordinate system ti The position coordinates of σ hi is the standard deviation of the explosion height of the i-th bomb; h i and h ti are the actual explosion height and binding explosion height of the i-th bomb respectively.

[0081] Step S3: Obtain the survival probability of each bomb before delivery, the probability of explosion upon delivery to the target area, and the penetration probability to determine the mission reliability of each bomb.

[0082] Considering the damage effects of air-blast bombs hitting three types of targets: point, line, and surface, the damage effect of hitting point targets is expressed by damage probability, the damage effect of hitting line targets is expressed by average damage length, and the damage effect of hitting surface targets is expressed by average damage area. Bind the explosion point for the i-th bomb, including the aiming point And binding explosion high hti Consider n bombs attacking the same target together, and assume that n bombs are fired and delivered independently, without considering the impact of the explosion effect between bombs. If the probability that the i-th bomb can be successfully delivered, fly normally, break through the defense and explode in the target area, then the mission reliability of the i-th bomb is p ti for:

[0083] p ti =p si p ri p Pi ; (7)

[0084] Among them, p si 、p ri 、p Pi They are respectively the survival probability of the i-th bomb before delivery, the probability of explosion after delivery to the target area, and the penetration probability, which can generally be obtained through the bomb's combat technical indicators.

[0085] Step S4: Select a target damage model, and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

[0086] The target damage model in this embodiment is selected as the step-type target damage function D[d(X,X hi )]for:

[0087]

[0088] Among them, h i is the actual explosion height of the i-th bomb in the target coordinate system; d(X, X hi ) is the landing point X of the i-th bomb in the target coordinate system hi The distance from the target point X; R d (X, h i ) is the determined damage threshold of target X; Δpd ( X) is the shock wave overpressure threshold corresponding to the damage to target X; Y is the bomb power, in equivalents; It is the inverse function of the shock wave overpressure effect generated by the bomb air explosion on the ground point.

[0089] In summary, the specific process of determining the damage effect of a joint attack by multiple bombs on different types of targets includes:

[0090] Step S41: Determine the damage probability function of each bomb explosion on the point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the actual explosion points of the bombs, and further determine a first damage effect function of multiple bombs jointly attacking the point target represented by the damage probability.

[0091] An air-burst bomb strikes a ground point target X, and the explosion point of the i-th bomb is W. hi (X hi , h i ) obeys the three-dimensional spatial distribution defined by equation (6). If the mission reliability is not considered, the probability of damage to a point target X by a single bomb explosion is:

[0092]

[0093] Substitute (8) and (6) into (9) and replace the variables to get

[0094]

[0095] △x i =x-μ xi -x ti

[0096] △y i =y-μ yi -y ti

[0097]

[0098] Where (x, y) is the position coordinate of point target X; Δx i , Δy i 、a(α), b(α), c(α), z(α, R) and erf(x) are all intermediate variables.

[0099] Consider the bomb mission reliability p ti In this case, the probability of damage to point target X by the i-th bomb (i.e., the probability function of damage to point target by each bomb explosion) is: ti ·p i (X, W ti ). The probability of no damage is 1-p ti ·p i (X, W ti ), then the probability that none of the n bombs damages the point target X is:

[0100]

[0101] The first damage effect function of multiple bombs jointly attacking a point target is:

[0102]

[0103] Among them, p n (X, W t1 ,....,W tn) is the first damage effect function of multiple bombs jointly attacking a point target; p i (X, W ti ) is the damage probability function of the i-th bomb explosion to the point target; X is the point target; W ti Bind the spatial position of the explosion point for the i-th bomb; p ti is the mission reliability of the i-th bomb, i = 1, 2, ..., n, and n is the number of bombs.

[0104] Step S42: performing length integration processing on the first damage effect function along the length direction of the line target to obtain a second damage effect function of the joint strike of multiple bombs on the line target represented by the average damage length.

[0105] The line target Γ contains countless point targets. When n bombs jointly attack the line target, considering the mission reliability of each bomb, the second damage effect function of multiple bombs jointly attacking the line target is:

[0106] L(Γ,W t1 ,....,W tn )=∫ X∈Γ p n (X, W t1 ,....,W tn )dl(X); (13)

[0107] Where L(Γ, W t1 ,....,W tn ) is the second damage effect function of multiple bombs jointly attacking the linear target; dl(X) is the length element at X∈Γ,

[0108] Step S43: performing area integration processing on the first damage effect function along the surface target area to obtain a third damage effect function of the joint attack of multiple bombs on the surface target represented by the average damage area.

[0109] The surface target S contains countless point targets. When n bombs jointly attack the surface target, considering the reliability of each bombing mission, the third damage effect function of multiple bombs jointly attacking the surface target is:

[0110] A(S,W t1 ,....,W tn )=∫∫ X∈S p n (X, W t1 ,....,W tn )ds(X); (14)

[0111] Among them, A(S,W t1 ,....,W tn) is the third damage effect function of multiple bombs jointly attacking point and surface targets; ds(X) is the infinitesimal area at point X∈S, ds(X)=dxdy.

[0112] Step S44: Using the first damage effect function, the second damage effect function, and the third damage effect function, evaluate the damage effect of a joint attack by multiple bombs.

[0113] This embodiment uses system deviation, standard deviation and correlation coefficient to determine the spatial distribution model of the actual explosion point of each bomb, ensuring the consistency of the spatial distribution model of the actual explosion point of each bomb with the spatial distribution of explosion points in the actual scene, and improving the accuracy of the spatial distribution model of the actual explosion point of each bomb; through the pre-selected target damage model, the mission reliability of each bomb and the spatial distribution model of the actual explosion point of each bomb, the damage effect of a joint strike of multiple bombs on different types of targets is calculated taking into account the bomb mission reliability condition, further ensuring the accuracy of the damage effect of the joint strike of multiple bombs on the target, improving the accuracy of the calculation of the bomb consumption in the strike plan, and ensuring the feasibility of the multi-bomb joint strike plan.

[0114] The above embodiment can be implemented by adopting the technical solutions given in the following embodiments:

[0115] Another embodiment provides a multi-projectile strike damage effect calculation system that takes mission reliability into consideration. The multi-projectile strike damage effect calculation system includes:

[0116] A construction module is used to construct a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system;

[0117] A first determination module is used to determine a spatial distribution model of the actual explosion point of each bomb using the system deviation, standard deviation and correlation coefficient;

[0118] The acquisition module is used to obtain the survival probability of each bomb before delivery, the probability of explosion after delivery to the target area, and the probability of penetration, so as to determine the mission reliability of each bomb;

[0119] The second determination module is used to select a target damage model and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

[0120] Furthermore, the building blocks include:

[0121] The first construction submodule is used to construct a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, so as to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation and lateral standard deviation of the bomb landing point in the delivery coordinate system;

[0122] The second construction submodule is used to construct a target coordinate system with the center of the target area as the origin and the east and north as the x-axis and y-axis respectively, so as to determine the third angle between the bomb delivery direction and the x-axis in the target coordinate system;

[0123] The first calculation submodule is used to calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, by using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation and the lateral standard deviation and the third angle of the bomb drop point in the delivery coordinate system.

[0124] Furthermore, the first determining module includes:

[0125] an acquisition submodule, for acquiring a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding burst height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding burst height is located;

[0126] The second calculation submodule is used to calculate the equivalent aiming point of the bomb in the target coordinate system by using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb;

[0127] The first determination submodule is used to determine the spatial distribution model of the actual explosion point of each bomb by using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop point along the x-axis and y-axis directions in the target coordinate system.

[0128] Furthermore, the second determining module includes:

[0129] A second determination submodule is configured to determine a damage probability function of each bomb's successful explosion on a point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the bomb's actual explosion points, and further determine a first damage effect function of the multiple bombs' joint attack on the point target represented by the damage probability;

[0130] a length integral processing submodule, configured to perform length integral processing on the first damage effect function along the length direction of the linear target to obtain a second damage effect function of a plurality of bombs jointly striking the linear target represented by an average damage length;

[0131] an area integral processing submodule, configured to perform area integral processing on the first damage effect function along the surface target area to obtain a third damage effect function of a joint attack of multiple bombs on the surface target represented by an average damage area;

[0132] The damage effect evaluation submodule is used to evaluate the damage effect of a joint attack of multiple bombs using the first damage effect function, the second damage effect function and the third damage effect function.

[0133] The principles, formulas and parameter definitions involved in the above embodiments are all applicable and will not be described in detail here.

[0134] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A method for calculating the damage effect of multiple projectile strikes taking into account mission reliability, characterized in that: The method for calculating the damage effect of multiple bomb strikes includes: Step S1: constructing a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system; Step S2: using the system deviation, standard deviation and correlation coefficient, determine the spatial distribution model of the actual explosion point of each bomb; Step S3: Obtain the survival probability of each bomb before delivery, the probability of explosion upon delivery to the target area, and the penetration probability to determine the mission reliability of each bomb; Step S4: Select a target damage model, and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

2. The method for calculating the damage effect of multiple projectile strikes according to claim 1, characterized in that: The specific implementation process of step S1 includes: Step S11: constructing a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation, and lateral standard deviation of the bomb landing point in the delivery coordinate system; Step S12: construct a target coordinate system with the center of the target area as the origin, and east and north as the x-axis and y-axis, respectively, to determine a third angle between the bomb delivery direction and the x-axis in the target coordinate system; Step S13: Calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation, the lateral standard deviation, and the third angle of the bomb drop point in the delivery coordinate system.

3. The method for calculating the damage effect of multiple projectile strikes according to claim 2, characterized in that: The specific implementation process of step S2 includes: Step S21, obtaining a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding explosion height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding explosion height is located; Step S22: Calculate the equivalent aiming point of the bomb in the target coordinate system using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb; Step S23: Determine the spatial distribution model of the actual explosion point of each bomb using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop points along the x-axis and y-axis in the target coordinate system.

4. The method for calculating the damage effect of multiple projectile strikes according to claim 3, characterized in that: In step S4, the specific process of determining the damage effect of a joint attack of multiple bombs on different types of targets includes: Step S41: Determine the damage probability function of each bomb explosion on the point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the actual explosion points of the bombs, and further determine a first damage effect function of the joint attack of multiple bombs on the point target represented by the damage probability; Step S42: performing length integration processing on the first damage effect function along the length direction of the line target to obtain a second damage effect function of the multiple bombs jointly striking the line target represented by the average damage length; Step S43: performing area integration processing on the first damage effect function along the surface target area to obtain a third damage effect function of a joint attack of multiple bombs on the surface target represented by an average damage area; Step S44: Using the first damage effect function, the second damage effect function, and the third damage effect function, evaluate the damage effect of a joint attack by multiple bombs.

5. A multi-projectile strike damage effect calculation system taking into account mission reliability, characterized in that: The multi-bomb strike damage effect calculation system includes: A construction module is used to construct a bomb delivery coordinate system and a target coordinate system to determine the systematic deviation and standard deviation of the bomb drop point corresponding to the bomb explosion point in the target coordinate system along the x-axis and y-axis directions, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system; A first determination module is used to determine a spatial distribution model of the actual explosion point of each bomb using the system deviation, standard deviation and correlation coefficient; The acquisition module is used to obtain the survival probability of each bomb before delivery, the probability of explosion after delivery to the target area, and the probability of penetration, so as to determine the mission reliability of each bomb; The second determination module is used to select a target damage model and use the target damage model, the mission reliability of each bomb, and the spatial distribution model of the actual explosion point of each bomb to determine the damage effect of a joint attack by multiple bombs on different types of targets.

6. The multi-bullet strike damage effect calculation system according to claim 5, characterized in that: The building blocks include: The first construction submodule is used to construct a bomb delivery coordinate system with the aiming point as the origin, the bomb delivery direction and its corresponding vertical direction as the x-axis and y-axis respectively, so as to determine the longitudinal systematic deviation, lateral systematic deviation, longitudinal standard deviation and lateral standard deviation of the bomb landing point in the delivery coordinate system; The second construction submodule is used to construct a target coordinate system with the center of the target area as the origin and the east and north as the x-axis and y-axis respectively, so as to determine the third angle between the bomb delivery direction and the x-axis in the target coordinate system; The first calculation submodule is used to calculate the systematic deviation and standard deviation of the bomb drop point along the x-axis and y-axis directions in the target coordinate system, as well as the correlation coefficient between the horizontal coordinate and the vertical coordinate of the bomb drop point in the target coordinate system, by using the longitudinal systematic deviation, the lateral systematic deviation, the longitudinal standard deviation and the lateral standard deviation and the third angle of the bomb drop point in the delivery coordinate system.

7. The multi-bullet strike damage effect calculation system according to claim 6, characterized in that: The first determining module includes: an acquisition submodule, for acquiring a first angle between the projection of the velocity vector of each bomb at the bomb explosion point on the horizontal plane where the binding burst height is located and the x-axis of the target coordinate system, and a second angle between the velocity vector of each bomb and the horizontal plane where the binding burst height is located; The second calculation submodule is used to calculate the equivalent aiming point of the bomb in the target coordinate system by using the actual burst height, the bound burst height, the aiming point corresponding to the bound burst height, the first angle, and the second angle of each bomb; The first determination submodule is used to determine the spatial distribution model of the actual explosion point of each bomb by using the bomb equivalent aiming point and the systematic deviation, standard deviation and correlation coefficient of the bomb drop point along the x-axis and y-axis directions in the target coordinate system.

8. The multi-bullet strike damage effect calculation system according to claim 7, characterized in that: The second determining module includes: A second determination submodule is configured to determine the damage probability function of each bomb explosion on the point target based on the target damage model, the mission reliability of each bomb, and the corresponding spatial distribution model of the actual explosion points of the bombs, and further determine a first damage effect function of the joint attack of multiple bombs on the point target represented by the damage probability; a length integral processing submodule, configured to perform length integral processing on the first damage effect function along the length direction of the linear target to obtain a second damage effect function of a plurality of bombs jointly striking the linear target represented by an average damage length; an area integral processing submodule, configured to perform area integral processing on the first damage effect function along the surface target area to obtain a third damage effect function of a joint attack of multiple bombs on the surface target represented by an average damage area; The damage effect evaluation submodule is used to evaluate the damage effect of a joint attack by multiple bombs using the first damage effect function, the second damage effect function and the third damage effect function.

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