Interception simulation method and system for multidirectional air group targets and storage medium

Abstract

The invention discloses an interception simulation method and system for a multidirectional air group target and a storage medium, and the method comprises the steps: covering the air group target in each direction through a conical radiation space region when the multidirectional air group target is monitored, and calculating the total threat degree corresponding to the air group target in each direction through a threat membership degree function; selecting a first batch of group targets and a second batch of group targets from the plurality of total threat degrees; determining a first residual steering duration and a second residual steering duration of platform steering of the first batch of group targets and the second batch of group targets; and according to the first residual steering duration, the second residual steering duration, the power density value of each target in the first batch of group targets and the power density value of each target in the second batch of group targets, carrying out interception simulation on the first batch of group targets and the second batch of group targets. According to the method, in the radiation space area, the interception simulation scheme is formulated through the total threat degree and the turning duration, and effective interception of multi-azimuth group targets is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of interception simulation, and in particular to an interception simulation method, system and storage medium for multi-directional aerial group targets. Background Art

[0002] For group targets that come randomly and densely in a short period of time, the existing technical judgment methods are mostly for independent target entities. For multi-directional group targets, they are also locked according to the time when the group targets are detected to determine the order of interception, resulting in poor interception efficiency. Therefore, how to effectively intercept multi-directional group targets has become an urgent problem to be solved.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a multi-directional aerial group target interception simulation method, system and storage medium, aiming to solve the technical problem of how to achieve effective interception of multi-directional group targets.

[0005] To achieve the above object, the present invention provides a multi-directional air group target interception simulation method, the multi-directional air group target interception simulation method comprising:

[0006] When the interception platform detects multi-directional air group targets, the radiation wave of the interception platform forms a conical radiation space area to cover the air group targets in each direction, and the total threat degree corresponding to the air group targets in each direction is calculated respectively through the threat membership function;

[0007] Selecting the maximum threat level and the second threat level from the total threat levels corresponding to the multi-directional aerial group targets, and taking the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and taking the aerial group targets corresponding to the second threat level as the second batch of group targets;

[0008] Determine a first remaining turning time for the first group of targets to perform platform turning toward the second group of targets, and determine a second remaining turning time for the second group of targets to perform platform turning toward the first group of targets;

[0009] Determining the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships;

[0010] Interception simulation is performed on the first group of targets and the second group of targets according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

[0011] Optionally, the step of respectively calculating the total threat degree corresponding to the aerial group targets in each direction by using the threat membership function includes:

[0012] Determine the distance threat membership function, the speed threat membership function, the height threat membership function and the heading angle threat membership function according to the threat membership function;

[0013] The distance threat membership function is used to calculate the distance threat membership corresponding to each target in the multi-directional aerial group target;

[0014] The speed threat membership function is used to calculate the speed threat membership corresponding to each target in the multi-directional aerial group target;

[0015] The height threat membership function is used to calculate the height threat membership corresponding to each target in the multi-directional aerial group target;

[0016] The heading angle threat membership function is used to calculate the heading angle threat membership corresponding to each target in the multi-directional aerial group target;

[0017] According to the distance threat membership, speed threat membership, altitude threat membership and heading angle threat membership corresponding to each target in the multi-directional aerial group target, the total threat degree corresponding to each directional aerial group target is obtained through the total threat degree calculation formula.

[0018] Optionally, the distance threat membership function is:

[0019]

[0020] Where y(r) is the distance threat membership corresponding to each target in the multi-directional air group target, k is the correction coefficient, D1 is the critical distance at which the threat reaches the maximum, D2 is the critical distance at which the threat disappears, and r is the distance between each target and the interception platform;

[0021] The speed threat membership function is:

[0022] y(v)=1-e -av v>0

[0023] In the formula, y(v) is the velocity threat membership corresponding to each target in the multi-directional aerial group target, v is the moving speed of each target, and a is the correction coefficient;

[0024] The high threat membership function is:

[0025]

[0026] In the formula, y(h) is the height threat membership corresponding to each target in the multi-directional aerial group target, a is the height limit, k is the correction coefficient, and h is the ground height corresponding to each target;

[0027] The heading angle threat membership function is:

[0028]

[0029] Where y(θ) is the heading angle threat membership corresponding to each target in the multi-directional aerial group target, k is the correction coefficient, and θ is the heading angle of each target.

[0030] Optionally, the step of determining a first remaining turning time for the first group of group targets to perform platform turning toward the second group of targets includes:

[0031] Determine a first remaining turning time for the first group of targets to turn the platform toward the second group of targets by a remaining time formula;

[0032] The time remaining formula is:

[0033] t m =t ni -t ai -t z

[0034] Where, t m is the remaining turning time, t ni is the arrival time of the i-th group target, t ai is the time to intercept the i-th batch of j-group targets, t z It is the ignition time.

[0035] Optionally, the step of performing interception simulation on the first batch of group targets and the second batch of group targets respectively according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first batch of group targets, and the power density value of each target in the second batch of group targets includes:

[0036] Determine the minimum power density value of the first group of targets according to the power density value of each target in the first group of targets, and determine the minimum power density value of the second group of targets according to the power density value of each target in the second group of targets;

[0037] Determine whether the expected performance level power density value is greater than the minimum power density value of the first group of targets and / or the minimum power density value of the second group of targets, and whether the first remaining turning time and / or the second remaining turning time is greater than a preset safety interception time;

[0038] If the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time and the second remaining turning time are greater than the preset safe interception time, then after intercepting the first batch of group targets, the interception platform is controlled to switch fire to the second batch of group targets for interception.

[0039] Optionally, after the step of determining whether the expected performance level power density value is greater than the minimum power density value of the first group of targets and / or the minimum power density value of the second group of targets, and whether the first remaining turning time and / or the second remaining turning time is greater than a preset safety interception time, the step further includes:

[0040] If the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time is less than or equal to the preset safe interception time, and the second remaining turning time is greater than the preset safe interception time, then after intercepting the second batch of group targets, the interception platform is controlled to switch fire to the first batch of group targets for interception.

[0041] In addition, to achieve the above-mentioned purpose, the present invention also proposes a multi-directional air group target interception simulation system, the multi-directional air group target interception simulation system comprising:

[0042] A calculation module is used to, when the interception platform monitors a multi-directional aerial group target, form a conical radiation space area through the radiation wave of the interception platform to cover the aerial group targets in each direction, and calculate the total threat degree corresponding to the aerial group targets in each direction respectively through the threat membership function;

[0043] A selection module is used to select the maximum threat level and the second threat level from the total threat levels corresponding to the multi-directional aerial group targets, and select the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and select the aerial group targets corresponding to the second threat level as the second batch of group targets;

[0044] a determination module, configured to determine a first remaining turning time for the first group of targets to perform platform turning toward the second group of targets, and to determine a second remaining turning time for the second group of targets to perform platform turning toward the first group of targets;

[0045] The calculation module is used to determine the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships;

[0046] An evaluation module is used to perform interception simulation on the first group of targets and the second group of targets according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

[0047] In addition, to achieve the above-mentioned objectives, the present invention also proposes an interception simulation device for multi-directional aerial group targets, the device comprising: a memory, a processor, and an interception simulation program for multi-directional aerial group targets stored in the memory and executable on the processor, the interception simulation program for multi-directional aerial group targets being configured to implement the steps of the interception simulation method for multi-directional aerial group targets as described above.

[0048] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which is stored an interception simulation program for multi-directional aerial group targets, and when the interception simulation program for multi-directional aerial group targets is executed by a processor, the steps of the interception simulation method for multi-directional aerial group targets as described above are implemented.

[0049] When the interception platform monitors multi-directional air group targets, the present invention first calculates the total threat degree corresponding to each direction air group target through the threat membership function, then selects the maximum threat degree and the second threat degree from the total threat degree corresponding to multiple air group targets, and takes the air group target corresponding to the maximum threat degree as the first group target, and takes the air group target corresponding to the second threat degree as the second group target, then determines the first remaining turning time for the first group target to turn the platform to the second group target, and determines the second remaining turning time for the second group target to turn the platform to the first group target, and finally determines the power density value of each target in the first group target and the power density value of each target in the second group target through the spatial geometric relationship, and respectively performs interception simulation on the first group target and the second group target according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group target and the power density value of each target in the second group target. The present invention realizes the effective interception of multi-directional group targets by formulating an interception simulation scheme in the radiation space area through the total threat degree and the turning time. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural schematic diagram of a multi-directional air group target interception simulation device of a hardware operating environment involved in an embodiment of the present invention;

[0051] Figure 2 It is a flow chart of a first embodiment of a multi-directional air group target interception simulation method of the present invention;

[0052] Figure 3A coverage cone area diagram of the first embodiment of the multi-directional air group target interception simulation method of the present invention;

[0053] Figure 4 It is a distribution diagram of the platform radiation at the target distance of the first embodiment of the multi-directional air group target interception simulation method of the present invention;

[0054] Figure 5 A geometric relationship diagram of the radiation beam and the ring of the first embodiment of the multi-directional air group target interception simulation method of the present invention;

[0055] Figure 6 A geometric relationship diagram of the radiation beam and the V-shape of the first embodiment of the multi-directional air group target interception simulation method of the present invention;

[0056] Figure 7 It is an incoming situation diagram of two group targets of the first embodiment of the multi-directional aerial group target interception simulation method of the present invention;

[0057] Figure 8 It is a structural block diagram of the first embodiment of the multi-directional aerial group target interception simulation system of the present invention.

[0058] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0060] Reference Figure 1 , Figure 1 It is a schematic diagram of the structure of a multi-directional air group target interception simulation device in the hardware operating environment involved in the embodiment of the present invention.

[0061] like Figure 1As shown, the interception simulation device for multi-directional air group targets may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage system independent of the aforementioned processor 1001.

[0062] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the interception simulation device for multi-directional aerial group targets, and may include more or less components than those shown in the figure, or a combination of certain components, or a different arrangement of components.

[0063] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a multi-directional air group target interception simulation program.

[0064] exist Figure 1 In the multi-directional aerial group target interception simulation device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the multi-directional aerial group target interception simulation device of the present invention can be set in the multi-directional aerial group target interception simulation device, and the multi-directional aerial group target interception simulation device calls the multi-directional aerial group target interception simulation program stored in the memory 1005 through the processor 1001, and executes the multi-directional aerial group target interception simulation method provided by the embodiment of the present invention.

[0065] The embodiment of the present invention provides a multi-directional air group target interception simulation method, referring to Figure 2 , Figure 2 It is a flow chart of the first embodiment of the interception simulation method of multi-directional aerial group targets of the present invention.

[0066] In this embodiment, the interception simulation method of multi-directional aerial group targets includes the following steps:

[0067] Step S10: When the interception platform monitors multi-directional aerial group targets, a conical radiation space area is formed by the radiation wave of the interception platform to cover the aerial group targets in each direction, and the total threat degree corresponding to the aerial group targets in each direction is calculated respectively by the threat membership function.

[0068] It is easy to understand that the execution subject of this embodiment can be a multi-directional air group target interception simulation system with functions such as data processing, network communication and program running, or it can be other computer equipment with similar functions, etc., and this embodiment is not limited.

[0069] In this embodiment, reference Figure 3 , Figure 3 This is a diagram of the coverage cone area of ​​the first embodiment of the interception simulation method of multi-directional aerial group targets of the present invention. The group targets include horizontal columns, vertical columns, and circular columns, all of which are based on the central target. It is assumed that the reference unit parameters of different group target structures are the same. Assume that the number of targets is n (n=5 in this example), which is composed of a central target and one target in each of the four surrounding directions. The central target and the surrounding targets maintain the same distance. The central target is numbered 1, the target in the forward direction is numbered 2, the target in the reverse direction is numbered 3, and the left and right targets are symmetrically numbered 4 and 5. Figure 1 As shown in the figure, the interception platform is at point O, the interception area is the cone area starting from point O, and the cone area covering OAB is the conical radiation space area.

[0070] It should also be noted that, assuming that a platform radiates outward in a directional manner, the beam angle θ is fixed, and the angle formed by the beam center ray and the plane where the wave source is located is the inclination angle Under the constraints of two angles, the final radiation wave forms a conical radiation space area, which can cause killing effects on targets in the area. Figure 4 , Figure 4 This is a distribution diagram of platform radiation at target distance in the first embodiment of the multi-directional aerial group target interception simulation method of the present invention.

[0071] In this embodiment, in order to cover each target in the group target by forming a conical radiation space area with radiation waves, the following conditions need to be met:

[0072] refer to Figure 5 , Figure 5This is the geometric relationship diagram of the radiation beam and the ring in the first embodiment of the interception simulation method for multi-directional airborne group targets. Geometric analysis is carried out on the common ring. The center line of the radiation beam (i.e., point A) is aimed at target No. 1. Within the height where it is located, it is necessary to ensure that 5 targets are all within the beam range. The following analysis and calculations are carried out:

[0073]

[0074] In the formula, a is the length of the semi-major axis. Usually, it can ensure covering the target. Constraint b is imposed to make b > R, that is, it is necessary to satisfy the formula:

[0075]

[0076] It should also be noted that during energy transmission, it follows a certain attenuation law. For a specific target, its damage threshold is a fixed value. To cause damage at the expected level to the corresponding target, it is necessary to be under the condition that the distance r < XX, and XX is a specific distance preset by the user.

[0077] Reference Figure 6 , Figure 6 This is the geometric relationship diagram of the radiation beam and the V shape in the first embodiment of the interception simulation method for multi-directional airborne group targets. Besides the ring, the V shape is also a common formation. Similarly, geometric analysis is carried out. Since the distance between target No. 4 and target No. 5 is the largest in the whole transverse direction, the largest short axis b in the transverse direction is used for conditional constraint to ensure that the whole is within the radiation beam. At this time From the geometric relationship, the distance from point B to point A in the long axis direction is longer than the length from target No. 1 to the bottom edge line of the V shape. Therefore, while ensuring that target No. 4 and target No. 5 satisfy the above formula, it must ensure that target No. 1, target No. 2, and target No. 3 are within the radiation beam range.

[0078] It should also be understood that due to the different shapes of the group targets, the conditions to be satisfied are different. Analysis can be carried out for different shapes to adjust the radiation wave so that each target within the group target is within the radiation beam range.

[0079] Further, the processing method of respectively calculating the total threat degree corresponding to each air group target in each orientation through the threat membership function is as follows: determining the distance threat membership function, the speed threat membership function, the height threat membership function and the heading angle threat membership function according to the threat membership function; respectively calculating the distance threat membership corresponding to each target in the multi-orientation air group target through the distance threat membership function; respectively calculating the speed threat membership corresponding to each target in the multi-orientation air group target through the speed threat membership function; respectively calculating the height threat membership corresponding to each target in the multi-orientation air group target through the height threat membership function; respectively calculating the heading angle threat membership corresponding to each target in the multi-orientation air group target through the heading angle threat membership function; and obtaining the total threat degree corresponding to the air group targets in each orientation through the total threat degree calculation formula according to the distance threat membership, speed threat membership, height threat membership and heading angle threat membership corresponding to each target in the multi-orientation air group target.

[0080] The distance threat membership function is:

[0081]

[0082] Where y(r) is the distance threat membership corresponding to each target in the multi-directional aerial target group, k is the correction coefficient, D1 is the critical distance at which the threat reaches the maximum, D2 is the critical distance at which the threat disappears, r is the distance between each target and the interception platform, k = 0.1, D1 = 10km, D2 = 200km.

[0083] It should be noted that this function is used to quantify the distance between the target and the interception platform as a threat membership. When the distance is within a certain distance D1, the distance threat reaches the maximum. Conversely, beyond a certain distance D2, the threat disappears. In the middle distance, an exponential function is used to represent the attenuation of the threat level.

[0084] The speed threat membership function is:

[0085] y(v)=1-e -av v>0

[0086] Where y(v) is the velocity threat membership corresponding to each target in the multi-directional aerial group target, v is the moving speed of each target, and a is the correction coefficient, which is a=2.

[0087] It should be understood that this function represents the target threat membership at different speeds, and the faster the speed, the higher the threat level.

[0088] The high threat membership function is:

[0089]

[0090] Where y(h) is the height threat membership corresponding to each target in the multi-directional aerial group target, a is the height limit, k is the correction coefficient, h is the ground height corresponding to each target, and a=0.1, k=0.5.

[0091] It should be noted that this function represents the relationship between the threat level and the altitude. When the altitude is lower than a certain value a, the target is difficult to detect and thus difficult to intercept, and the threat is greatest. The higher the altitude, the easier it is to be detected and tracked, and the threat level gradually decreases.

[0092] The heading angle threat membership function is:

[0093]

[0094] Where y(θ) is the heading angle threat membership corresponding to each target in the multi-directional aerial group target, k is the correction coefficient, k=1, and θ is the heading angle of each target.

[0095] In the specific implementation, the heading angle of the target is analyzed and calculated using a function. The approach speed of the attacking target can be obtained based on the heading angle. This speed is relative to its own speed. The larger the absolute value of the angle, the smaller the threat level. When the heading angle is 0°, the target threat is the greatest.

[0096] Furthermore, by accumulating the threat membership calculated by the previous functions, we can get the total threat degree of the target after considering several important indicators. The objects are all the same target, so the calculation formula of the total threat degree is:

[0097]

[0098] In this embodiment, a situation is assumed in which a group of five targets are attacking in a circular formation. Assume that the center target of the group of incoming targets is 40km away from the platform, the heading angle is 30°, the distance between each target is 1km, the flight altitude of all targets is 0.2km, and the flight speed is 0.7Ma.

[0099] According to the threat membership function, we can calculate:

[0100]

[0101] At the same time, the reaction time is calculated based on the distance and speed:

[0102]

[0103] It can be seen that the threat level of different targets in the same scene is similar. We continue to analyze the overall motion parameters.

[0104] If the target in this situation is faster, reaching 0.9 Ma, the total threat is calculated to be W总 =12.58, which is higher than before. At the same time, the reaction time is shortened to t=131 (seconds), which is consistent with the conclusion that the faster the target speed, the higher the threat level. Then analyze the distance. If the target distance is shortened to 20km in this situation, the total threat is calculated to be W. 总 =13.53, the reaction time is also shortened, at this time t=84 (seconds), and the overall threat level is more obviously improved.

[0105] Step S20: selecting the maximum threat level and the second threat level from the total threat levels corresponding to the multiple aerial group targets, and taking the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and taking the aerial group targets corresponding to the second threat level as the second batch of group targets.

[0106] In this embodiment, the group of targets may attack from two directions or in multiple waves. Multiple waves may also attack in which each wave is a group of multiple targets. The actual situation that may appear is very complicated. Below, a simple case is used as an example to illustrate:

[0107] If there are a group of incoming targets from the left and right directions respectively, factors such as priority interception targets and platform switching time need to be considered. For the priority interception selection of targets in multiple directions, it is necessary to conduct threat analysis and analysis of the remaining time for switching.

[0108] Step S30: determining a first remaining turning time for the first group of targets to perform a platform turn toward the second group of targets, and determining a second remaining turning time for the second group of targets to perform a platform turn toward the first group of targets.

[0109] In this embodiment, reference Figure 7 , Figure 7 This is an incoming situation diagram of two group targets of the first embodiment of the multi-directional aerial group target interception simulation method of the present invention. If a group of targets is attacked from the left at 30°, five targets form a ring, approach at a speed of 0.7Ma, a heading angle of 0°, and an altitude of 1km, and are 10km away from the platform when they are discovered. At the same time, another group of targets is attacked from the right at 60°, and five targets form a V shape, approach at a speed of 0.9Ma, a heading angle of 0°, and an altitude of 1km, and are 12km away from the platform when they are discovered.

[0110] Assume the platform switching time is v z =20° / s, the damage time t to the target at different distances d satisfy:

[0111] t d =e 0.2*d 0.01 <d<10

[0112] The left is designated as the first batch of targets, and the right is designated as the second batch of targets. After calculation, it is found that the threat level of the first batch of targets is W1=13.5, and the threat level of the second batch of targets is W2=12.8. At this time, the first batch of targets should be intercepted first, and then the second batch of targets should be intercepted.

[0113] If the speed parameter is adjusted from 0.9Ma to 1.2Ma, in this case, after considering the direct threat of the two batches of targets, further analysis is performed, taking into account the actual conditions such as interception time and switching time. At this time, the threat of the second batch of targets has changed. At this time, the remaining time formula is:

[0114] t m =t ni -t ai -t z

[0115] Where, t m is the remaining turning time, t ni is the arrival time of the i-th group target, t ai is the time to intercept the i-th batch of j-group targets, t z It is the ignition time.

[0116] Here, a threshold is set in time to measure whether the target can be successfully intercepted. This time is the safe time t required to intercept a batch of targets at close range. s =10s, if t m <t s , it is considered that there is not enough security to complete the interception of this batch of targets, and a new interception plan needs to be analyzed.

[0117] By analyzing the assumed situation, we can get W1=13.5, W2=13.2. Then we analyze and judge the threshold conditions and get:

[0118]

[0119] The remaining interception time is:

[0120] t m2 =t n2 -t a1 -t z =6.5s <t s

[0121] This interception plan cannot guarantee the successful interception of two batches of group targets, which will threaten the platform. The interception plan needs to be reconsidered, and the second batch of targets with low current threat level should be intercepted first. At this time, the time of each plan is calculated as:

[0122]

[0123] The remaining interception time at this time is:

[0124] t m1 =t n1 -t a2 -t z =11.5s>t s

[0125] The analysis results show that the second solution is better and can ensure the successful interception of two batches of group targets without threatening the platform.

[0126] Step S40: determining the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships.

[0127] In a specific implementation, it is also necessary to determine the power density value of each target in the first group of targets and the power density value of each target in the second group of targets.

[0128] Without considering atmospheric attenuation, the radiation power will not decay, but as the distance increases, the radiation area increases and the power density decreases accordingly. Because radiation is a cone with the radiation source as the vertex, the area at different distances satisfies the formula:

[0129] A=4πR 2

[0130] In fact, atmospheric attenuation is an important factor that cannot be ignored. For example, in common sunny weather conditions, the radiation power attenuation can be calculated by 10 -0.12R To perform exponential decay fitting, the power density calculation formula is:

[0131]

[0132] Where S is the power density at the target distance, P is the radiation power of the radiation source, G is the directional radiation antenna gain, and R is the distance between the radiation source and the target.

[0133] P and G are both known data, but R is not directly known and needs to be calculated based on the known data. In terms of target information acquisition, if the horizontal distance r between the target and the platform and the target's flight altitude h are known, the calculation formula for R is:

[0134]

[0135] The inclination is through It is concluded that the beam angle θ depends on the characteristics of the platform itself, and the radiation directivity coefficient at the edge of the beam is half of that at the center of the beam.

[0136] refer to Figure 4It can be seen that according to the spatial geometric relationship, it can be deduced that:

[0137]

[0138] In the formula, S A is the power density value of target A in the group target, S B is the power density value of target B in the group target, S C is the power density value of target C in the group target, S D is the power density value of target D in the group target, S E is the power density value of target E in the group target.

[0139] Step S50: performing interception simulation on the first group of targets and the second group of targets according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

[0140] It should be understood that Figure 4 In the figure, R is the distance between the targets. After comparing and analyzing several parameters, it can be seen that the one with the highest power density is S A The one with the smallest power density is S C . C Compared with the expected efficiency level power density, if it is greater than the minimum value, it can cause damage to all targets in the area above the expected level. If it cannot be met, S A Compare it with the expected damage effectiveness level power density. If it is lower than the maximum value, all targets in the area cannot cause the expected damage.

[0141] Furthermore, the minimum power density value of the first batch of group targets is determined according to the power density value of each target in the first batch of group targets, and the minimum power density value of the second batch of group targets is determined according to the power density value of each target in the second batch of group targets; it is judged whether the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and / or the minimum power density value of the second batch of group targets, and whether the first remaining turning time and / or the second remaining turning time are greater than the preset safe interception time; if the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time and the second remaining turning time are greater than the preset safe interception time, the first batch of group targets can be intercepted according to the threat level, and after the interception is completed (that is, the accumulated radiation energy corresponding to each target in the first batch of group targets reaches the corresponding destruction threshold of each target), the interception platform is controlled to switch fire to the second batch of group targets for interception.

[0142] It should be understood that after intercepting the first group of targets and the second group of targets, it is necessary to return to the step of selecting the maximum threat level and the second threat level from the total threat level corresponding to the multi-directional aerial group targets, and re-determine the first group of targets and the second group of targets for platform switching, etc.

[0143] It should also be noted that if the power density value of the expected effectiveness level is greater than the minimum power density value of the group targets, it means that the damage threshold can be reached at the position of minimum radiation energy, and all targets in the batch of group targets can be damaged. If the damage threshold is not reached at the position of minimum radiation energy of the targets in the first batch of group targets, it is necessary to destroy some targets in the first batch of group targets that reach the damage threshold, and then return to calculate the total threat degree corresponding to the remaining targets in the first batch of group targets and the total threat degree corresponding to other group targets in real time, and re-determine the batch and remaining turning time of the group targets, so as to judge whether to switch fire to intercept or wait based on the power density value and the remaining turning time.

[0144] It should also be understood that for targets of the same type and size, the damage threshold is a fixed estimate. When the target is of a different type, its damage threshold will change, but it is still a fixed estimate. When the target type (shape, size, components, protection level) is different, its damage threshold is different, but the damage threshold of the same type of target is the same.

[0145] If the expected efficiency level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time is less than or equal to the preset safe interception time, and the second remaining turning time is greater than the preset safe interception time, then in order to effectively intercept multi-directional group targets, it is necessary to intercept the second batch of group targets. After the interception is completed (that is, the accumulated radiation energy corresponding to each target in the second batch of group targets reaches the destruction threshold), the interception platform is controlled to switch fire to the first batch of group targets for interception.

[0146] In this embodiment, when the interception platform monitors a multi-directional air group target, the total threat degree corresponding to each air group target is first calculated by the threat membership function, and then the maximum threat degree and the second threat degree are selected from the total threat degrees corresponding to multiple air group targets, and the air group target corresponding to the maximum threat degree is used as the first group target, and the air group target corresponding to the second threat degree is used as the second group target, and then the first remaining turning time for the first group target to turn the platform to the second group target is determined, and the second remaining turning time for the second group target to turn the platform to the first group target is determined, and finally the power density value of each target in the first group target and the power density value of each target in the second group target are determined by the spatial geometric relationship, and the first group target and the second group target are intercepted and simulated according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group target and the power density value of each target in the second group target. In this embodiment, the effective interception of multi-directional group targets is achieved by formulating an interception simulation plan in the radiation space area according to the total threat degree and the turning time.

[0147] Reference Figure 8 , Figure 8 It is a structural block diagram of the first embodiment of the multi-directional aerial group target interception simulation system of the present invention.

[0148] like Figure 8 As shown, the multi-directional air group target interception simulation system proposed in the embodiment of the present invention includes:

[0149] The calculation module 8001 is used for, when the interception platform monitors the multi-directional air group targets, to form a conical radiation space area through the radiation wave of the interception platform to cover the air group targets in each direction, and to calculate the total threat degree corresponding to the air group targets in each direction respectively through the threat membership function;

[0150] The selection module 8002 is used to select the maximum threat level and the second threat level from the total threat levels corresponding to the multi-directional aerial group targets, and select the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and select the aerial group targets corresponding to the second threat level as the second batch of group targets;

[0151] The determination module 8003 is used to determine a first remaining turning time for the first group of targets to perform platform turning toward the second group of targets, and to determine a second remaining turning time for the second group of targets to perform platform turning toward the first group of targets;

[0152] The calculation module 8001 is used to determine the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships;

[0153] The evaluation module 8004 is used to perform interception simulation on the first group of targets and the second group of targets according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

[0154] In this embodiment, when the interception platform monitors a multi-directional air group target, the total threat degree corresponding to each air group target is first calculated by the threat membership function, and then the maximum threat degree and the second threat degree are selected from the total threat degrees corresponding to multiple air group targets, and the air group target corresponding to the maximum threat degree is used as the first group target, and the air group target corresponding to the second threat degree is used as the second group target, and then the first remaining turning time for the first group target to turn the platform to the second group target is determined, and the second remaining turning time for the second group target to turn the platform to the first group target is determined, and finally the power density value of each target in the first group target and the power density value of each target in the second group target are determined by the spatial geometric relationship, and the first group target and the second group target are intercepted and simulated according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group target and the power density value of each target in the second group target. In this embodiment, the effective interception of multi-directional group targets is achieved by formulating an interception simulation plan in the radiation space area according to the total threat degree and the turning time.

[0155] Other embodiments or specific implementation methods of the multi-directional aerial group target interception simulation system of the present invention can refer to the above-mentioned method embodiments, which will not be repeated here.

[0156] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0157] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0158] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory / random access memory, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0159] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-directional air group target interception simulation method, characterized in that: The interception simulation method of multi-directional aerial group targets comprises the following steps: When the interception platform detects multi-directional air group targets, the radiation wave of the interception platform forms a conical radiation space area to cover the air group targets in each direction, and the total threat degree corresponding to the air group targets in each direction is calculated respectively through the threat membership function; Selecting the maximum threat level and the second threat level from the total threat levels corresponding to the multi-directional aerial group targets, and taking the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and taking the aerial group targets corresponding to the second threat level as the second batch of group targets; Determine a first remaining turning time for the first group of targets to perform platform turning toward the second group of targets, and determine a second remaining turning time for the second group of targets to perform platform turning toward the first group of targets; Determining the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships; Interception simulation is performed on the first group of targets and the second group of targets respectively according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

2. The method according to claim 1, characterized in that The step of respectively calculating the total threat degree corresponding to the aerial group targets in various directions by using the threat membership function comprises: Determine the distance threat membership function, the speed threat membership function, the height threat membership function and the heading angle threat membership function according to the threat membership function; The distance threat membership function is used to calculate the distance threat membership corresponding to each target in the multi-directional aerial group target; The speed threat membership function is used to calculate the speed threat membership corresponding to each target in the multi-directional aerial group target; The height threat membership function is used to calculate the height threat membership corresponding to each target in the multi-directional aerial group target; The heading angle threat membership function is used to calculate the heading angle threat membership corresponding to each target in the multi-directional aerial group target; According to the distance threat membership, speed threat membership, altitude threat membership and heading angle threat membership corresponding to each target in the multi-directional aerial group target, the total threat degree corresponding to each directional aerial group target is obtained through the total threat degree calculation formula.

3. The method according to claim 2, characterized in that The distance threat membership function is: Where y(r) is the distance threat membership corresponding to each target in the multi-directional air group target, k is the correction coefficient, D1 is the critical distance at which the threat reaches the maximum, D2 is the critical distance at which the threat disappears, and r is the distance between each target and the interception platform; The speed threat membership function is: y(v)=1-e -av v>0 In the formula, y(v) is the velocity threat membership corresponding to each target in the multi-directional aerial group target, v is the moving speed of each target, and a is the correction coefficient; The high threat membership function is: In the formula, y(h) is the height threat membership corresponding to each target in the multi-directional aerial group target, a is the height limit, k is the correction coefficient, and h is the ground height corresponding to each target; The heading angle threat membership function is: Where y(θ) is the heading angle threat membership corresponding to each target in the multi-directional aerial group target, k is the correction coefficient, and θ is the heading angle of each target.

4. The method according to claim 3, characterized in that The step of determining a first remaining turning time for the first group of group targets to perform platform turning toward the second group of group targets comprises: Determine a first remaining turning time for the first group of targets to turn the platform toward the second group of targets by a remaining time formula; The time remaining formula is: t m =t ni -t ai -t z Where, t m is the remaining turning time, t ni is the arrival time of the i-th group target, t ai is the time to intercept the i-th batch of j-group targets, t z It is the ignition time.

5. The method according to any one of claims 1 to 4, characterized in that: The step of performing interception simulation on the first group of targets and the second group of targets respectively according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets includes: Determine the minimum power density value of the first group of targets according to the power density value of each target in the first group of targets, and determine the minimum power density value of the second group of targets according to the power density value of each target in the second group of targets; Determine whether the expected performance level power density value is greater than the minimum power density value of the first group of targets and / or the minimum power density value of the second group of targets, and whether the first remaining turning time and / or the second remaining turning time is greater than a preset safety interception time; If the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time and the second remaining turning time are greater than the preset safe interception time, then after intercepting the first batch of group targets, the interception platform is controlled to switch fire to the second batch of group targets for interception.

6. The method according to claim 5, characterized in that After the step of determining whether the expected performance level power density value is greater than the minimum power density value of the first group of targets and / or the minimum power density value of the second group of targets, and whether the first remaining turning time and / or the second remaining turning time is greater than a preset safety interception time, the step further includes: If the expected performance level power density value is greater than the minimum power density value of the first batch of group targets and the minimum power density value of the second batch of group targets, and the first remaining turning time is less than or equal to the preset safe interception time, and the second remaining turning time is greater than the preset safe interception time, then after intercepting the second batch of group targets, the interception platform is controlled to switch fire to the first batch of group targets for interception.

7. A multi-directional air group target interception simulation system, characterized in that: The multi-directional air group target interception simulation system comprises: A calculation module is used to, when the interception platform monitors a multi-directional aerial group target, form a conical radiation space area through the radiation wave of the interception platform to cover the aerial group targets in each direction, and calculate the total threat degree corresponding to the aerial group targets in each direction respectively through the threat membership function; A selection module is used to select the maximum threat level and the second threat level from the total threat levels corresponding to the multi-directional aerial group targets, and select the aerial group targets corresponding to the maximum threat level as the first batch of group targets, and select the aerial group targets corresponding to the second threat level as the second batch of group targets; a determination module, configured to determine a first remaining turning time for the first group of targets to perform platform turning toward the second group of targets, and to determine a second remaining turning time for the second group of targets to perform platform turning toward the first group of targets; The calculation module is used to determine the power density value of each target in the first group of targets and the power density value of each target in the second group of targets through spatial geometric relationships; An evaluation module is used to perform interception simulation on the first group of targets and the second group of targets according to the first remaining turning time, the second remaining turning time, the power density value of each target in the first group of targets, and the power density value of each target in the second group of targets.

8. A storage medium, characterized in that: The storage medium stores an interception simulation program for multi-directional aerial group targets, and when the interception simulation program for multi-directional aerial group targets is executed by the processor, the steps of the interception simulation method for multi-directional aerial group targets as described in any one of claims 1 to 6 are implemented.

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