Launching method of airborne projectile infrared bait

Abstract

The invention provides a throwing method of airborne projectile type infrared bait, belongs to the technical field of bait projectile throwing, and particularly establishes mathematical models of throwing projectile seeds, throwing time, the flush launching number, the throwing time interval and the throwing group number of infrared bait projectiles aiming at blindness of interference of the current airborne infrared bait projectiles, and the throwing method of the airborne projectile type infrared bait projectiles is based on the mathematical models of the throwing projectile seeds, the throwing opportunity, the flush launching number, the throwing time interval and the throwing group number of the infrared bait projectiles. According to the intelligent throwing method of the infrared decoy projectile, a theoretical basis can be provided for an aerial carrier to resist attack of an infrared guidance target, the effect of the infrared decoy projectile is fully played, and the interference effect on the target is improved.

Description

Technical Field

[0001] The present application relates to the field of decoy bomb delivery, and in particular to a method for delivering an airborne projectile infrared decoy. Background Art

[0002] Infrared decoy flares are a crucial component of an aircraft's comprehensive self-defense capability. They aim to lure targets away from their carrier aircraft by concealing their true presence while displaying a false presence. Currently, using carrier aircraft to launch infrared decoy flares for jamming and thus protecting the aircraft platform remains the most cost-effective and widely used countermeasure. However, current deployment strategies are not rigorous, resulting in a low success rate. Summary of the Invention

[0003] In view of this, the present application provides a method for delivering an airborne projectile infrared decoy, which solves the problems in the prior art and improves the interference effect on the target.

[0004] The present application provides a method for delivering an airborne projectile infrared decoy using the following technical solutions:

[0005] A method for delivering an airborne projectile infrared decoy comprises the following steps:

[0006] Determine the distance between the target and the aircraft. When the distance between the target and the aircraft is D min and D max Infrared bait is deployed between

[0007]

[0008] Among them, v m The target's velocity, v f is the speed of the aircraft, t f is the dispenser response time, t g is the time from the release of the infrared decoy bomb to its ignition, t z is the time from ignition to reaching rated power, t c is the duration, θ is the instantaneous field of view of the seeker, L max t f +t g +t z +t c The distance between the decoy and the aircraft in the time, L min t f +t g +t z The distance between the decoy and the aircraft in the time, I j is the infrared radiation intensity of the bait, I f is the infrared radiation intensity of the aircraft;

[0009] Calculate the number of infrared decoy flares fired in a salvo;

[0010] Calculate the time interval for releasing infrared decoy flares;

[0011] Calculate the number of groups of infrared decoy bombs to be released.

[0012] Optionally, the method for calculating the number of infrared decoy flares fired includes:

[0013] The number of decoy bombs n required for one salvo is:

[0014]

[0015] Among them, K j is the anti-interference coefficient of the seeker, P j is the probability that the target is lured to the interference of the decoy bomb, is not less than The smallest integer.

[0016] Optionally, the method for calculating the time interval for releasing infrared decoy flares includes:

[0017] The optimal time interval Δt for releasing decoy bombs is:

[0018]

[0019] Where φ is the field of view of the seeker; q is the azimuth of the enemy target; D y The target attack distance.

[0020] Optionally, the method for calculating the number of infrared decoy flares released includes:

[0021] The number of decoy bomb delivery groups m is:

[0022]

[0023] in, Not greater than The maximum integer, t2 is the distance between the carrier and the target reduced to the minimum distance D min time, t1 is the time when the first decoy bomb is released.

[0024] Optionally, the intelligent delivery method further includes: selecting the type of ammunition to be delivered according to the target.

[0025] Optionally, when the distance between the aircraft and the target is greater than or equal to 2 kilometers and the target type is unknown, use multi-point source infrared decoy bombs;

[0026] When the distance between the aircraft and the target is less than 2 kilometers and the type of the target is unknown, three types of infrared decoy bombs, namely surface source, multi-point source and point-surface composite, are selected and dropped simultaneously.

[0027] In summary, this application has the following beneficial technical effects:

[0028] This application optimizes the release control parameters of infrared decoy bombs based on given missile target warning information and carrier aircraft information, improves the release decision technology, reverses the blindness of previous decoy bomb release, helps to enhance the interference effect of infrared decoy bombs, and improves the survivability of carrier aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 A schematic diagram of the flow chart of the method for deploying an airborne projectile infrared decoy according to the present application;

[0031] Figure 2 This is the relationship curve between the number of decoy missiles fired in salvo and the probability of interference;

[0032] Figure 3 This is the relationship curve between the time interval of decoy bomb release and the interference probability in this application. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0035] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0036] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0037] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0038] An embodiment of the present application provides a method for delivering an airborne projectile infrared decoy.

[0039] like Figure 1 、 Figure 2 and Figure 3 As shown, a method for delivering an airborne projectile infrared decoy comprises the following steps:

[0040] Determine the distance between the target and the aircraft. When the distance between the target and the aircraft is D min and D max Infrared bait is deployed between

[0041]

[0042] Among them, v m The target's velocity, v f is the speed of the aircraft, t f is the dispenser response time, t g is the time from the release of the infrared decoy bomb to its ignition, t z is the time from ignition to reaching rated power, t c is the duration, θ is the instantaneous field of view of the seeker, L max t f +t g +t z +tc The distance between the decoy and the aircraft in the time, L min t f +t g +t z The distance between the decoy and the aircraft in the time, I j is the infrared radiation intensity of the bait, I f is the infrared radiation intensity of the aircraft.

[0043] Calculate the number of infrared decoy flares fired in a salvo:

[0044] The number of decoy bombs n required for one salvo is:

[0045]

[0046] Among them, K j is the anti-interference coefficient of the seeker, P j is the probability that the target is lured to the interference of the decoy bomb, is not less than The smallest integer.

[0047] Calculate the time interval for releasing infrared decoy flares: The optimal time interval Δt for releasing decoy flares is:

[0048]

[0049] Where φ is the field of view of the seeker; q is the azimuth of the enemy target; D y The target attack distance.

[0050] Calculate the number of infrared decoy flares to be released:

[0051] The number of decoy bomb delivery groups m is:

[0052]

[0053] in, Not greater than The maximum integer, t2 is the distance between the carrier and the target reduced to the minimum distance D min time, t1 is the time when the first decoy bomb is released.

[0054] Choose the type of ammunition to be dropped based on the target:

[0055] There are three types of infrared decoy missiles currently in service: multi-point source, area source, and point-area combination. When deciding which type of missile to deploy, it's crucial to consider the guidance method of the incoming infrared target and make a reasonable selection based on the jamming mechanisms of different types of infrared decoy missiles.

[0056] For first-generation infrared homing targets and second-generation enhanced infrared homing targets, multi-point source infrared decoy flares are used. For third-generation targets capable of motion trajectory recognition or spectral recognition, area source, multi-point source, and point-area composite infrared decoy flares are used. For fourth-generation targets capable of imaging recognition, area source and point-area composite infrared decoy flares are used.

[0057] When the distance between the aircraft and the target is greater than or equal to 2 kilometers and the target type is unknown, use multi-point source infrared decoy bombs;

[0058] When the distance between the aircraft and the target is less than 2 kilometers and the type of the target is unknown, three types of infrared decoy bombs, namely surface source, multi-point source and point-surface composite, are selected and dropped simultaneously.

[0059] Numerous factors influence the use of infrared decoy flares. For a given aircraft, under the same mission environment, the jamming effect of its onboard infrared decoy flares is primarily related to the target's motion pattern, decoy delivery method, and the aircraft's evasion strategy. For different target types, effective jamming of incoming infrared missile targets can be achieved by improving decoy delivery strategies, such as optimizing the type of decoy delivered, delivery timing, number of salvos, delivery intervals, and number of delivery groups. Therefore, to address the deployment decision-making issue for airborne projectile infrared decoy flares, this application proposes an intelligent deployment method for airborne projectile infrared decoy flares, rationally estimating the control parameters for release given missile target warning information and carrier aircraft information. This method ensures effective jamming of incoming infrared missiles.

[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for placing an airborne projectile infrared decoy, characterized in that: The steps include: Determine the distance between the target and the aircraft. When the distance between the target and the aircraft is D min and D max In the meantime, infrared bait is deployed; Among them, v m The speed of the target, v f is the speed of the aircraft, t f is the dispenser response time, t g is the time from the release of the infrared decoy bomb to its ignition, t z is the time from ignition to reaching rated power, t c is the duration, θ is the instantaneous field of view of the seeker, L max t f +t g +t z +t c The distance of the decoy from the aircraft in time, L min t f +t g +t z The distance of the decoy from the aircraft within a certain time, I j is the infrared radiation intensity of the bait, I f is the infrared radiation intensity of the aircraft; Calculate the number of infrared decoy flares fired; Calculate the time interval for releasing infrared decoy bombs; Calculate the number of groups of infrared decoy bombs to be released.

2. The method for placing an airborne projectile infrared decoy according to claim 1, characterized in that: Methods for calculating the number of infrared decoy flares fired include: The number of decoy bombs n required for one salvo is: Among them, K j is the anti-interference coefficient of the seeker, P j is the probability of the target being lured to the interference of the decoy bomb, is not less than The smallest integer.

3. The method for placing an airborne projectile infrared decoy according to claim 1, characterized in that: The method for calculating the time interval for releasing infrared decoy bombs includes: The optimal time interval Δt for releasing decoy bombs is: Where φ is the field of view of the seeker; q is the azimuth of the enemy target; D y The target attack distance.

4. The method for placing an airborne projectile infrared decoy according to claim 1, characterized in that: The method for calculating the number of groups of infrared decoy bombs released includes: The number of decoy bomb release groups m is: in, Not greater than The maximum integer of t2 is the distance between the carrier and the target reduced to the minimum distance D min time, t1 is the time when the first decoy bomb is released.

5. The method for placing an airborne projectile infrared decoy according to claim 1, characterized in that: The intelligent delivery method also includes: selecting the type of ammunition to be delivered according to the target.

6. The method for placing an airborne projectile infrared decoy according to claim 5, characterized in that: When the distance between the aircraft and the target is greater than or equal to 2 kilometers and the type of the target is unknown, use multi-point source infrared decoy bombs; When the distance between the aircraft and the target is less than 2 kilometers and the type of the target is unknown, three types of infrared decoy bombs, namely surface source, multi-point source and point-surface composite, are selected and dropped simultaneously.

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