Ground cluster target-oriented damage efficiency rapid evaluation method

Abstract

The invention discloses a ground cluster target-oriented damage efficiency rapid evaluation method. The method can realize rapid and accurate solving of cluster target-oriented damage efficiency. The method specifically comprises the following steps: carrying out grid division on the area of a region where a cluster target is located according to a certain length-width ratio, enabling each grid to represent one or more unit targets, and regarding each grid as a composition unit of the cluster target; after grid division is completed, it can be assumed that unit targets are evenly distributed in the section, the center point of each grid is the coordinate point of the unit targets, and the average damage probability of single-round strike of each grid is calculated through a Monte-Carlo method; grouping the grids in the cluster target distribution area by taking the average damage probability of single-round strike of each grid in the cluster target distribution area as a standard, and dividing the grids with similar damage probabilities into one group; adopting binomial distribution grouping to calculate the average damage probability of each group of grids and the cluster target damage probability of multi-round strike; and calculating the bullet consumption required by the cluster target to reach a certain damage level.

Description

Technical Field

[0001] The invention belongs to the technical field of damage theory analysis, and in particular relates to a method for quickly evaluating damage effectiveness of ground cluster targets. Background Art

[0002] Damage effectiveness assessment belongs to the damage theory and technology category of weapons science and technology. It refers to the function or ability of the warhead, weapon (ammunition) or weapon system to damage the target and achieve a certain degree of damage or effect. The purpose is to give a quantitative description and evaluation of the combat capability of the weapon / ammunition system under certain constraints, and to obtain the influencing laws of ballistic characteristics, hit accuracy, fuze activation rules and warhead performance.

[0003] With the rapid development of military science and technology, ground cluster targets have become the main ground combat force in modern battlefields, so the attack on ground cluster targets has become an inevitable problem. The research on the damage effectiveness evaluation of ground enemy cluster targets will help commanders to flexibly organize fire coordination and quickly decide on fire strike plans during combat.

[0004] Since ground cluster targets have the characteristics of large area and large number of unit targets, when the number of unit targets in the cluster target is large, the damage assessment model based on the full probability formula will exceed the computer computing power, resulting in a long calculation time or even difficulty in calculation. It has poor applicability to ground cluster targets, so there is a lack of fast and accurate damage assessment model for ground cluster targets. Summary of the invention

[0005] The purpose of the present invention is to provide a method for rapid evaluation of the killing effectiveness of cluster targets. The method can achieve rapid and accurate solution of the killing effectiveness of cluster targets, can be applied to the precise prediction of the killing effectiveness of cluster targets, and can also provide technical support and data reference for weapon design and battlefield command decision-making.

[0006] The technical solution adopted by the present invention is:

[0007] A method for quickly evaluating the damage effectiveness of ground cluster targets includes discretization of cluster target areas, calculation of damage probability within regional units, grouping of single-shot damage probability intervals, statistics of the number of unit areas in the interval groupings, and calculation of the amount of ammunition used for different damage degrees. The method is characterized in that the evaluation method is completed by the following steps:

[0008] Step 1: Divide the area where the cluster target is located into grids according to a predetermined aspect ratio, where each grid unit has a shape and size that conforms to the aspect ratio, so that each grid can represent one or more unit targets, and each grid is regarded as a component unit of the cluster target;

[0009] Step 2: After completing the grid division, it can be assumed that the unit targets are evenly distributed in the area, then the center point of each grid is the coordinate point of the unit target, and the Monte-Carlo method is used to calculate the average damage probability of a single round of strikes on each grid;

[0010] Step 3: Group the grids in the cluster target distribution area based on the average damage probability of each grid in a single round of strikes in the cluster target distribution area, and divide the grids with similar damage probabilities into one group;

[0011] Step 4: Use binomial distribution to calculate the average damage probability of each group of grids and the damage probability of cluster targets in multiple rounds of strikes;

[0012] Step 5: Calculate the amount of ammunition required to achieve the predetermined level of damage to the cluster target.

[0013] Furthermore, the process of gridding the cluster target is as follows: the area where the cluster target is located is simply gridded according to a certain aspect ratio, so that each grid can represent one or more unit targets, and each grid is regarded as a component unit of the cluster target. The number of grids is recorded as n. a , the total number of unit targets is recorded as N a The grid size affects the accuracy of the damage effectiveness assessment model. The calculation results have a large deviation under large-size grids. When the grid size is less than 2m×2m, the amount of ammunition used tends to converge with the change of grid size.

[0014] Furthermore, the damage probability calculation process under the single-round attack is: using the covering fire suppression attack method to determine the aiming point, using the Monte-Carlo method to randomly extract the bombing point coordinates, and obtaining the damage probability of all grids.

[0015] Furthermore, the calculation process of the ammunition consumption for the cluster targets at a certain damage level is as follows: grouping the cluster targets according to the single-shot damage probability of each grid in the distribution area of ​​the cluster targets, calculating the damage probability of the targets in each grid grouping interval under multiple rounds of strikes, and finally obtaining the ammunition consumption for the cluster targets at a certain damage level.

[0016] The present invention proposes a method for rapidly evaluating the damage effectiveness of ground cluster targets based on binomial distribution. The method discretizes the ground cluster target area into multiple target area units, calculates the damage probability of the target in different area units, groups them according to the interval range of the single-shot damage probability of each area unit, counts the number of unit areas in different damage probability ranges, and uses binomial distribution grouping to calculate the damage probability of cluster targets under multiple rounds of strikes. This method can improve the problem of poor applicability of the damage assessment model based on the full probability formula to ground cluster targets, and can realize rapid evaluation of the damage effectiveness for cluster targets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Grid division map for group target area;

[0018] Figure 2 The flowchart of the method for evaluating the damage effectiveness of cluster targets is shown in FIG. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by those of ordinary skill in the art to which the present application belongs.

[0020] A rapid evaluation method for the damage effectiveness of ground cluster targets can calculate the terminal damage effectiveness of ammunition based on the cluster target vulnerability information and ammunition information. The cluster target vulnerability information includes the cluster target area size, the number of unit targets and the target damage criterion, and the ammunition information includes the ammunition power characterization parameters, ammunition terminal ballistic parameters and ammunition guidance accuracy.

[0021] The specific process of the present invention is: cluster target information input; ammunition information input; cluster target area grid division; grid single-round strike damage probability calculation; grid group average damage probability calculation; multi-round strike damage probability calculation; complete ammunition usage calculation under different damage levels.

[0022] See below Figure 1-Figure 2 , the present invention is further described in detail:

[0023] Step 1: Analyze the target characteristics of ground cluster targets, determine the damage level, damage tree, damage criteria and other vulnerability data of ground cluster targets, and input the position size and number of single targets of ground cluster targets;

[0024] Step 2: Analyze the power characteristics of the selected strike ammunition, input the power characterization parameters of the ammunition (such as the number of fragments, initial velocity of fragments, fragment dispersion angle, etc.) and terminal ballistic parameters (such as falling angle, falling speed, etc.);

[0025] Step 3: Divide the area where the ground cluster target is located into grids according to a predetermined aspect ratio, wherein each grid unit has a shape and size that conforms to the aspect ratio, so that each grid can represent one or more unit targets;

[0026] Step 4: Assuming that the unit targets are evenly distributed in the grid, the Monte-Carlo method is used to calculate the missile-target intersection and obtain the average damage probability of a single-round strike in each grid;

[0027] Step 5: Group the grids in the cluster target distribution area based on the average damage probability of each grid in a single round of strikes, and group the grids with similar damage probabilities into one group;

[0028] Step 6: Use binomial distribution to calculate the average damage probability of each group of grids and the damage probability of cluster targets in multiple rounds of strikes;

[0029] Step 7: Calculate the amount of ammunition required to achieve the predetermined level of damage to the cluster target.

[0030] The present invention proposes a rapid evaluation method for the damage effectiveness of ground cluster targets based on Monte-Carlo and binomial distribution methods. Based on this method, the situation in which the calculation time of the damage effectiveness is too long or even difficult to calculate when the number of unit targets in the cluster target is large can be overcome. The calculation time of the damage effectiveness can be greatly reduced, the calculation efficiency can be improved, and the cost can be saved.

[0031] The present invention takes ground cluster targets as the research object, determines the grid division method of the cluster target area, groups and merges the single-shot average damage probability of each grid, and uses binomial distribution to calculate the damage probability of cluster targets after multiple rounds of strikes, so as to realize the rapid solution of the damage efficiency for ground cluster targets.

[0032] In summary, the above are only preferred implementation examples of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for rapid evaluation of damage effectiveness of ground cluster targets, including discretization of cluster target areas, calculation of damage probability within regional units, grouping of single-shot damage probability intervals, statistics of the number of unit areas in the interval groupings, and calculation of the amount of ammunition used for different damage degrees, characterized in that: The evaluation method is completed by the following steps: Step 1: Divide the area where the cluster target is located into grids according to a predetermined aspect ratio, where each grid unit has a shape and size that conforms to the aspect ratio, so that each grid can represent one or more unit targets, and each grid is regarded as a component unit of the cluster target; Step 2: After completing the grid division, it can be assumed that the unit targets are evenly distributed in the area, then the center point of each grid is the coordinate point of the unit target, and the Monte-Carlo method is used to calculate the average damage probability of a single round of strikes on each grid; Step 3: Group the grids in the cluster target distribution area based on the average damage probability of each grid in a single round of strikes in the cluster target distribution area, and divide the grids with similar damage probabilities into one group; Step 4: Use binomial distribution to calculate the average damage probability of each group of grids and the damage probability of cluster targets in multiple rounds of strikes; Step 5: Calculate the amount of ammunition required to achieve the predetermined level of damage to the cluster target.

2. According to claim 1, a method for rapid evaluation of damage effectiveness of ground cluster targets is characterized in that: The process of cluster target grid division is as follows: the area where the cluster target is located is simply grid-divided according to a certain aspect ratio, so that each grid can represent one or more unit targets, and each grid is regarded as a component unit of the cluster target. The number of grids is recorded as n. a , the total number of unit targets is recorded as N a The grid size affects the accuracy of the damage effectiveness assessment model. The calculation results have a large deviation under large-size grids. When the grid size is less than 2m×2m, the amount of ammunition used tends to converge with the change of grid size.

3. The method for rapid evaluation of damage effectiveness of ground cluster targets according to claim 1 is characterized in that: The damage probability calculation process under the single-round attack is as follows: the aiming point is determined by using the covering fire suppression attack method, and the coordinates of the bombing point are randomly extracted using the Monte-Carlo method to obtain the damage probability of all grids.

4. The method for rapid evaluation of damage effectiveness of ground cluster targets according to claim 1 is characterized in that: The process of calculating the amount of ammunition used for a certain damage level of the cluster targets is as follows: grouping the cluster targets according to the single-shot damage probability of each grid in the distribution area of ​​the cluster targets, calculating the damage probability of the targets in each grid grouping interval under multiple rounds of strikes, and finally obtaining the amount of ammunition used for the cluster targets at a certain damage level.

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