Damage effect calculation method and system considering explosion height distribution

Abstract

The invention discloses a damage effect calculation method and system considering explosion height distribution, and belongs to the technical field of military operation. The method comprises the following steps: S1, selecting a target damage model according to a scene task requirement; s2, according to the actual explosion height condition of the bomb, a bomb explosion point space distribution model is determined; and S3, determining the damage effect of the bomb on different target types by using the bomb explosion point spatial distribution model and the target damage model. The method can accurately evaluate the damage effect of the air explosion of the guided bomb on the ground target, and is suitable for the application scene when the explosion points are highly dispersed or the explosion effect of the bomb is highly sensitive.

Description

Technical Field

[0001] The present invention belongs to the field of military operations technology, and in particular relates to a damage effect calculation method and system considering blast height distribution. Background Art

[0002] When guided bombs of a certain power are used to damage ground targets using airbursts, the damage effect is closely related to the height and horizontal position of the explosion point. Existing techniques for calculating the damage effect on point, line, and surface targets under these conditions simply convert the error in the explosion point height into a hit accuracy deviation, without considering the impact of the explosion point height distribution on the damage effect. This theoretical model is subject to bias, especially when the explosion point heights are widely dispersed or the bomb's blast effect is sensitive to altitude, resulting in inaccurate damage effect calculations. Summary of the Invention

[0003] One of the objectives of the present invention is to provide a damage effect calculation method that takes into account the blast height distribution. This method can accurately evaluate the damage effect of guided bomb airburst on ground targets and is suitable for evaluating application scenarios when the explosion point height dispersion is large or the bomb blast effect is sensitive to height.

[0004] A second object of the present invention is to provide a damage effect calculation system that takes into account the blast height distribution.

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

[0006] A damage effect calculation method considering blast height distribution, the damage effect calculation method comprising:

[0007] Step S1: Select the target damage model according to the scenario task requirements;

[0008] Step S2: Determine the bomb explosion point spatial distribution model based on the actual explosion height condition of the bomb;

[0009] Step S3: using the bomb explosion point spatial distribution model and the target damage model, determine the damage effects of the bomb on different target types.

[0010] Furthermore, in step S2, the specific process of determining the bomb explosion point spatial distribution model includes:

[0011] Step S21: construct a 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 standard deviation of the bomb landing point;

[0012] Step S22: 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, to determine the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system;

[0013] Step S23, obtaining a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located;

[0014] Step S24: Determine a spatial distribution model of bomb explosion points using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle, and the second angle.

[0015] Furthermore, in step S3, when the actual blast height of the bomb is determined, the specific process of determining the damage effect of the bomb on different target types includes:

[0016] Step S311: Determine a first point target damage effect function represented by damage probability using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model;

[0017] Step S312: performing length integration processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function represented by an average damage length;

[0018] Step S313: performing area integration processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function represented by an average damage area;

[0019] Step S314: perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function, and the first surface target damage effect function.

[0020] Furthermore, in step S3, when the actual explosion height of the bomb is not determined, the specific process of determining the damage effect of the bomb on different target types includes:

[0021] Step S321: Determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model;

[0022] Step S322: performing length integration processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function represented by an average damage length;

[0023] Step S323: performing area integration processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by an average damage area;

[0024] Step S324: perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function, and the second surface target damage effect function.

[0025] In order to achieve the second of the above objectives, the present invention adopts the following technical solutions:

[0026] A damage effect calculation system considering blast height distribution, the damage effect calculation system comprising:

[0027] The selection module is used to select the target damage model according to the scenario mission requirements;

[0028] The first determination module is used to determine the spatial distribution model of the bomb explosion point according to the actual explosion height condition of the bomb;

[0029] The second determination module is used to determine the damage effects of the bomb on different target types by using the bomb explosion point spatial distribution model and the target damage model.

[0030] Furthermore, the first determining module includes:

[0031] The first construction submodule is used to construct a 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 standard deviation of the bomb landing point;

[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 horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system;

[0033] An acquisition submodule, for acquiring a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located;

[0034] The first determination submodule is used to determine the spatial distribution model of the bomb explosion point by using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle and the second angle.

[0035] Furthermore, when the actual explosion height of the bomb is determined, the second determination module includes:

[0036] The second determination submodule is used to determine the first point target damage effect function represented by the damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model;

[0037] A first integral processing submodule is configured to perform length integral processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function represented by an average damage length;

[0038] A second integral processing submodule is configured to perform area integral processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function represented by an average damage area;

[0039] The first evaluation submodule is used to perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function and the first surface target damage effect function.

[0040] Furthermore, when the actual explosion height of the bomb is not determined, the second determination module includes:

[0041] The third determination submodule is used to determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model;

[0042] a third integral processing submodule, configured to perform length integral processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function represented by an average damage length;

[0043] a fourth integral processing submodule, configured to perform area integral processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by an average damage area;

[0044] The second evaluation submodule is used to perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function and the second surface target damage effect function.

[0045] In summary, the technical solution of the present invention has the following technical effects:

[0046] The present invention accurately evaluates the damage effect of guided bomb airburst on ground targets through the spatial distribution model of bomb explosion points under the actual explosion height conditions of the bomb (including both certain and uncertain actual explosion heights of the bomb) and the selected target damage model. It is suitable for evaluating application scenarios when the explosion point height dispersion is large or the bomb explosion effect is sensitive to height. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] 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.

[0048] Figure 1 The figure is a flowchart of a method for calculating damage effects considering blast height distribution according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] 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.

[0050] This embodiment provides a method for calculating the damage effect taking into account the blast height distribution. Figure 1 , the damage effect calculation method includes:

[0051] Step S1: Select the target damage model according to the scenario task requirements.

[0052] With the center of the target area as the origin, a rectangular coordinate system is established. The spatial position of the bomb explosion point can be determined by its actual explosion height h relative to the target and the horizontal landing point position X h (x h ,y h ) describes the shock wave overpressure effect produced by the bomb airburst on the ground. p [·] description, the overpressure action distance can be expressed as:

[0053]

[0054] Among them, d(X, X h ) is the bomb's landing point X h The distance from the target point X; E p [·] is the shock wave overpressure effect function generated by the bomb air explosion on the ground point; Y is the bomb power; Δ p (X) is the shock wave overpressure value at target X; h is the actual explosion height of the bomb.

[0055] The target damage models in this embodiment include a step damage model, a continuous damage model, and a broken line damage model.

[0056] Target X at overpressure Δp Under the action of (X), the probability of being damaged is described by the target damage function D[·], which can be converted into a function with distance as the independent variable by formula (1).

[0057] 1. The step damage model is:

[0058]

[0059] Among them, R d (X, h) is the determined damage threshold of target X, Δp d (X) is the shock wave overpressure threshold corresponding to the determined damage of target X.

[0060] 2. Continuous damage model

[0061] The continuous damage model is closer to the actual situation when the explosion effect of the bomb is greater than or equal to the damage threshold R of the target X. d (X, h) when the target X is completely damaged, when the explosion effect of the bomb is less than the target X's determination of no damage threshold R nd When (X, h), target X is not damaged. When the bomb's blast effect is between the two, the damage level is between 0 and 1, and increases monotonically. Taking η as a given constant, the continuous damage model can be expressed as the following continuous function:

[0062]

[0063] 3. Broken Line Damage Model

[0064]

[0065] Step S2: Determine the bomb explosion point spatial distribution model based on the actual explosion height condition of the bomb.

[0066] Bomb binding explosion high h t , only considering the explosion effect of the bomb above the ground where the target is located, the height direction system deviation μ h =0, the bomb explosion point height is a normally distributed random variable, and the probability distribution model of the bomb explosion point height h is:

[0067]

[0068] Among them, σ h is the standard deviation of the bomb's explosion height; h t is the binding explosion height of the bomb; h is the actual explosion height of the bomb.

[0069] 1. Spatial distribution model of bomb explosion points when the actual explosion height of the bomb is determined

[0070] With the bomb's aiming point as the origin, a delivery coordinate system is established. The coordinate axes x and y are selected as the bomb's delivery direction L (vertical) and its perpendicular direction H (horizontal), respectively. L and H are independent of each other and conform to the normal distribution. For guided bombs, if CEP is the bomb's hit accuracy, the vertical and horizontal landing point standard deviation σ can be considered. L =σ H =σ=CEP / 1.17741, longitudinal and lateral system errors μ L =μ H =0.

[0071] The target coordinate system is established with the center of the target area as the origin, and the x and y axes generally point to the east and north respectively. Assuming that the actual blast height deviation is not considered, the horizontal position corresponding to the explosion point (i.e., the landing point) in the target coordinate system is expressed as express, It obeys the normal distribution, and its probability density is:

[0072]

[0073] in, is the probability density of the bomb's impact point when the actual blast height is determined; σ is the standard deviation of the bomb's impact point, σ = CEP / 1.17741; CEP is the bomb's hit accuracy; is the aiming point position of the bomb in the target coordinate system; is the coordinate of the bomb's aiming point in the target coordinate system; is the bomb's landing point in the target coordinate system; is the bomb's landing point coordinate in the target coordinate system.

[0074] When the actual explosion height of the bomb is a given value, the bomb landing point will be different from the binding explosion height. The explosion point and the explosion point are located in the horizontal plane of the bound burst height and the actual burst height, respectively. Therefore, there is a difference between the explosion point and the landing point. Assuming that the bomb is flying in an approximately straight line near the bound burst height, the first angle between the projection of its velocity vector on the horizontal plane of the bound burst height and the x-axis of the target coordinate system is γ, and the second angle between the velocity vector and the horizontal plane of the bound burst height is θ. Then the actual explosion point position (i.e., the corrected landing point) in the horizontal plane of the actual burst height of the bomb is X h (x h ,y h ) and the landing point position in the horizontal plane where the binding burst height is located There is a bias The deviation for:

[0075]

[0076] Similarly, there is an equivalent aiming point at the actual explosion height of the bomb:

[0077]

[0078] When the actual explosion height of the bomb is determined, the spatial distribution of the actual explosion point of the bomb can be expressed as a two-dimensional normal distribution. According to formulas (6) and (7), the explosion point spatial distribution model when the actual explosion height of the bomb is determined can be derived:

[0079]

[0080] Among them, f Xh (X h , W t |h) is the explosion point spatial distribution model when the actual explosion height of the bomb is determined; W t Binding explosion point for the bomb; X h is the corrected landing point of the bomb; σ is the standard deviation of the bomb landing point; Δh is the actual explosion height h and the binding explosion height h of the bomb t The difference, Δh=hh t ;(x h ,y h ) is the corrected impact point coordinate of the bomb in the target coordinate system; is the coordinate of the aiming point of the bomb in the target coordinate system; γ and θ are the first angle and the second angle respectively.

[0081] 2. Spatial distribution model of bomb explosion points when the actual explosion height of the bomb is uncertain

[0082] In more general cases, the actual explosion height is an uncertain random quantity, the actual explosion point is a three-dimensional random variable, and the joint probability density is expressed as According to probability theory, the actual explosion point of the bomb is W when the actual explosion height is known. h The horizontal position (i.e., the corrected landing point) X h The conditional probability density can be expressed as:

[0083]

[0084] Among them, f Xh (Xx,W t |h) is the same as (9), but here Δh is replaced by a random quantity; f h (h) is the probability density of the explosion height in formula (5). Substituting formulas (5) and (9) into formula (10), we can obtain the spatial distribution model of the actual explosion point when the actual explosion height of the bomb is uncertain:

[0085]

[0086] in, is the spatial distribution model of the explosion point when the actual explosion height of the bomb is not determined; h and h tare the actual explosion height and binding explosion height of the bomb respectively; (x h ,y h ) is the corrected impact point coordinate of the bomb in the target coordinate system; is the coordinate of the bomb's aiming point in the target coordinate system; γ and θ are the first and second angles respectively; σ h is the standard deviation of the bomb's explosion height; σ is the standard deviation of the bomb's landing point.

[0087] In summary, the specific process of determining the spatial distribution model of bomb explosion points in this embodiment includes:

[0088] Step S21: construct a 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 standard deviation of the bomb landing point;

[0089] Step S22: 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, to determine the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system;

[0090] Step S23, obtaining a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located;

[0091] Step S24: Determine a spatial distribution model of bomb explosion points using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle, and the second angle.

[0092] Step S3: using the bomb explosion point spatial distribution model and the target damage model, determine the damage effects of the bomb on different target types.

[0093] The damage effect of bomb hitting point target is expressed as damage probability, the damage effect of hitting line target is expressed as average damage length, and the damage effect of hitting surface target is expressed as average damage area. Depending on whether the actual explosion height can be determined, the explosion points follow different spatial distributions. The damage effects on the target are calculated separately below.

[0094] When the actual blast height of the bomb is determined, the specific process of determining the damage effect of the bomb on different target types in this embodiment includes:

[0095] Step S311: Determine a first point target damage effect function represented by damage probability using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model;

[0096] The first point target damage effect function in this embodiment is:

[0097]

[0098] Among them, q(X,W t , h) is the probability of damage to point target X by the bomb when the actual explosion height of the bomb is determined (i.e., the first point target damage effect function); f Xh (X h , W t |h) is the explosion point spatial distribution model when the actual explosion height of the bomb is determined; D[d(X, X h ), h] is the target damage model; h is the actual explosion height of the bomb; X is the target point; W t Binding explosion point for the bomb; X h is the corrected landing point of the bomb; (x h ,y h ) is the corrected landing point coordinate of the bomb.

[0099] When D[d(X,X h ), h) is the formula (2), substitute formula (2) and formula (9) into formula (12), and after replacing the variables, we can get:

[0100]

[0101] Among them, q(X,W t , h) is the first point target damage effect function; I0(·) is the zero-order first-kind deformed Bessel function; u is the equivalent distance of any point on the plane where the point target X is located relative to the coordinate origin of the target coordinate system; (x t ,y t ) is the equivalent aiming point X in the target coordinate system t The location coordinates of Aiming point in the target coordinate system The position coordinates of d(X,X t ) is the distance between the bomb's equivalent aiming point and the target X; R d (X, h) is the determined damage threshold of target X.

[0102] When D[d(X,X h ), h] is formula (3), substitute formula (3) and formula (9) into formula (12), and after replacing the variables, we can get:

[0103]

[0104] Among them, q(X,W t , h) is the first target damage effect function; d(X, X t) is the distance between the bomb's equivalent aiming point and target X.

[0105] When D[d(X,X h ), h] is formula (4), substitute formula (4) and formula (9) into formula (12), and after replacing the variables, we can get:

[0106]

[0107] Among them, q(X,W t ,h) is the first target damage effect function; d(X,X t ) is the distance between the bomb's equivalent aiming point and target X.

[0108] Step S312: performing length integration processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function characterized by an average damage length.

[0109] The first-line target damage effect function of this embodiment (i.e., the average damage length of the bomb on the line target Γ) is:

[0110] L(Γ,W t )=∫ X∈Γ q(X,W t ,h)d l (X); (16)

[0111] Where L(Γ, W t ) is the first-line target damage effect function; dl(X) is the length element at X∈Γ,

[0112]

[0113] When calculating formula (16), D[d(X,X h ),h] can be selected from formula (2) to formula (4), and the corresponding q(X,W t ,h) Select from formula (13) to formula (15).

[0114] Step S313: performing area integration processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function characterized by an average damage area.

[0115] The first surface target damage effect function of this embodiment (i.e., the average damage area of ​​the bomb on the opposite target S) is:

[0116] A(S,W t )=∫∫ X∈S q(X,W t ,h)ds(X); (17)

[0117] Among them, A(S,W t ) is the first surface target damage effect function; ds(X) is the area element at point X∈S, ds(X)=dxdy.

[0118] When calculating formula (17), D[d(X, X h ), h] can be selected from formula (2) to formula (4), and the corresponding q(X, W t , h) Select from formula (13) to formula (15).

[0119] Step S314: perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function, and the first surface target damage effect function.

[0120] When the actual blast height of the bomb is not determined, the specific process of determining the damage effect of the bomb on different target types in this embodiment includes:

[0121] Step S321: Determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model;

[0122] When the actual explosion height of the bomb is an uncertain quantity, the explosion point W h (X h , h) obeys the three-dimensional distribution of formula (11), then the second point target damage effect function (the probability of the bomb damaging the point target X) is:

[0123]

[0124] Among them, p(X,W t ) is the probability of the bomb damaging point target X when the actual blast height of the bomb is not determined (i.e., the second point target damage effect function); is the explosion point spatial distribution model when the actual explosion height of the bomb is not determined; D[d(X, X h ), h] is the target damage model; h is the actual explosion height of the bomb; X is the target; W t Binding explosion point for the bomb; X h is the corrected landing point of the bomb; (x h ,y h ) is the corrected impact point coordinate of the bomb; The aiming point of the bomb.

[0125] When D[d(X,X h ), h] is formula (2), substitute formula (2) and formula (11) into formula (18), and after replacing the variables, we can get:

[0126]

[0127] Among them, p(X,W t ) is the second point target damage effect function; f h (h) is the probability distribution model of the bomb explosion point height in formula (5); I0(·) is the zero-order first-kind deformed Bessel function; u is the equivalent distance of any point on the plane where the point target X is located relative to the coordinate origin of the target coordinate system; (x t ,y t ) is the equivalent aiming point X in the target coordinate system t The location coordinates of Aiming point in the target coordinate system The position coordinates of d(X, X t ) is the distance between the bomb's equivalent aiming point and the target X; R d (X, h) is the determined damage threshold of target X.

[0128] When D[d(X,X h ), h] is formula (3), substitute formula (3) and formula (11) into formula (18), and after replacing the variables, we can get:

[0129]

[0130] Among them, p(X,W t ) is the damage effect function of the second point target; d(X, X t ) is the distance between the bomb's equivalent aiming point and target X.

[0131] When D[d(X,X h ), h] is the formula (4), substitute the formula (4) and formula (11) into the formula (18), and after replacing the variables, we can get:

[0132]

[0133] Among them, p(X,W t ) is the damage effect function of the second point target; d(X, X t ) is the distance between the bomb's equivalent aiming point and target X.

[0134] Step S322: performing length integration processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function characterized by an average damage length.

[0135] The second line target damage effect function of this embodiment (i.e., the average damage length of the bomb to the line target Γ) is:

[0136]

[0137] Where L(Γ, W t ) is the second-line target damage effect function; dl(X) is the length element at X∈Γ,

[0138] When calculating formula (22), D[d(X, X h ), h] can be selected from formula (2) to formula (4), and the corresponding p(X, W t ) Select from formula (19) to formula (21).

[0139] Step S323: Perform area integration processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by the average damage area.

[0140] The second surface target damage effect function of this embodiment (i.e., the average damage area of ​​the bomb on the opposite target S) is:

[0141] A(S,W t )=∫∫ X∈S p(X,W t )ds(X); (23)

[0142] Among them, A(S,W t ) is the damage effect function of the second surface target; ds(X) is the area element at point X∈S, ds(X)=dxdy.

[0143] When calculating formula (23), D[d(X, X h ), h] can be selected from formula (2) to formula (4), and the corresponding p(X, W t ) Select from formula (19) to formula (21).

[0144] Step S324: perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function, and the second surface target damage effect function.

[0145] This embodiment accurately evaluates the damage effect of guided bomb airbursts on ground targets through the spatial distribution model of bomb explosion points under the actual explosion height conditions of the bomb (including both cases where the actual explosion height of the bomb is determined and uncertain) and the selected target damage model. It is suitable for evaluating application scenarios when the explosion point height dispersion is large or the bomb explosion effect is sensitive to height.

[0146] The technical solutions of the above embodiments can be implemented by adopting the technical solutions given in the following embodiments:

[0147] Another embodiment provides a damage effect calculation system that considers blast height distribution, the damage effect calculation system comprising:

[0148] The selection module is used to select the target damage model according to the scenario mission requirements;

[0149] The first determination module is used to determine the spatial distribution model of the bomb explosion point according to the actual explosion height condition of the bomb;

[0150] The second determination module is used to determine the damage effects of the bomb on different target types by using the bomb explosion point spatial distribution model and the target damage model.

[0151] Furthermore, the first determining module includes:

[0152] The first construction submodule is used to construct a 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 standard deviation of the bomb landing point;

[0153] 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 horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system;

[0154] An acquisition submodule, for acquiring a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located;

[0155] The first determination submodule is used to determine the spatial distribution model of the bomb explosion point by using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle and the second angle.

[0156] Furthermore, when the actual explosion height of the bomb is determined, the second determination module includes:

[0157] The second determination submodule is used to determine the first point target damage effect function represented by the damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model;

[0158] A first integral processing submodule is configured to perform length integral processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function represented by an average damage length;

[0159] A second integral processing submodule is configured to perform area integral processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function represented by an average damage area;

[0160] The first evaluation submodule is used to perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function and the first surface target damage effect function.

[0161] Furthermore, when the actual explosion height of the bomb is not determined, the second determination module includes:

[0162] The third determination submodule is used to determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model;

[0163] a third integral processing submodule, configured to perform length integral processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function represented by an average damage length;

[0164] a fourth integral processing submodule, configured to perform area integral processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by an average damage area;

[0165] The second evaluation submodule is used to perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function and the second surface target damage effect function.

[0166] The principles, formulas and parameter definitions involved in the above embodiments are all applicable and will not be described in detail here.

[0167] 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 damage effects taking into account blast height distribution, characterized in that: The damage effect calculation method includes: Step S1: Select the target damage model according to the scenario task requirements; Step S2: Determine the bomb explosion point spatial distribution model based on the actual explosion height condition of the bomb; Step S3: using the bomb explosion point spatial distribution model and the target damage model, determine the damage effects of the bomb on different target types.

2. The damage effect calculation method according to claim 1, characterized in that: In step S2, the specific process of determining the spatial distribution model of bomb explosion points includes: Step S21: construct a 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 standard deviation of the bomb landing point; Step S22: 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, to determine the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system; Step S23, obtaining a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located; Step S24: Determine a spatial distribution model of bomb explosion points using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle, and the second angle.

3. The damage effect calculation method according to claim 1 or 2, characterized in that: In step S3, when the actual blast height of the bomb is determined, the specific process of determining the damage effect of the bomb on different target types includes: Step S311: Determine a first point target damage effect function represented by damage probability using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model; Step S312: performing length integration processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function represented by an average damage length; Step S313: performing area integration processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function represented by an average damage area; Step S314: perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function, and the first surface target damage effect function.

4. The damage effect calculation method according to claim 1 or 2, characterized in that: In step S3, when the actual blast height of the bomb is not determined, the specific process of determining the damage effect of the bomb on different target types includes: Step S321: Determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model; Step S322: performing length integration processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function represented by an average damage length; Step S323: performing area integration processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by an average damage area; Step S324: perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function, and the second surface target damage effect function.

5. A damage effect calculation system considering blast height distribution, characterized in that: The damage effect calculation system includes: The selection module is used to select the target damage model according to the scenario mission requirements; The first determination module is used to determine the spatial distribution model of the bomb explosion point according to the actual explosion height condition of the bomb; The second determination module is used to determine the damage effects of the bomb on different target types by using the bomb explosion point spatial distribution model and the target damage model.

6. The damage effect calculation system according to claim 5, characterized in that: The first determining module includes: The first construction submodule is used to construct a 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 standard deviation of the bomb landing point; 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 horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system; An acquisition submodule, for acquiring a first angle between the projection of the bomb velocity vector 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 and the horizontal plane where the binding burst height is located; The first determination submodule is used to determine the spatial distribution model of the bomb explosion point by using the actual explosion height and the bound explosion height of the bomb, the standard deviation of the bomb drop point, the horizontal position coordinates corresponding to the aiming point of the bomb in the target coordinate system, the first angle and the second angle.

7. The damage effect calculation system according to claim 5 or 6, characterized in that: When the actual explosion height of the bomb is determined, the second determination module includes: The second determination submodule is used to determine the first point target damage effect function represented by the damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is determined and the selected target damage model; A first integral processing submodule is configured to perform length integral processing on the first point target damage effect function along the line target length direction to obtain a first line target damage effect function represented by an average damage length; A second integral processing submodule is configured to perform area integral processing on the first point target damage effect function along the surface target area to obtain a first surface target damage effect function represented by an average damage area; The first evaluation submodule is used to perform damage effect evaluation using the first point target damage effect function, the first line target damage effect function and the first surface target damage effect function.

8. The damage effect calculation system according to claim 7, characterized in that: When the actual explosion height of the bomb is not determined, the second determination module includes: The third determination submodule is used to determine a second point target damage effect function represented by damage probability by using the bomb explosion point spatial distribution model when the actual explosion height of the bomb is not determined and the selected target damage model; a third integral processing submodule, configured to perform length integral processing on the second point target damage effect function along the line target length direction to obtain a second line target damage effect function represented by an average damage length; a fourth integral processing submodule, configured to perform area integral processing on the second point target damage effect function along the surface target area to obtain a second surface target damage effect function represented by an average damage area; The second evaluation submodule is used to perform damage effect evaluation using the second point target damage effect function, the second line target damage effect function and the second surface target damage effect function.

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