An index calculation method for an airborne jamming bomb and a launching device for aircraft survivability

Abstract

The application provides an airborne jamming bomb and launching equipment index calculation method for aircraft survivability, which can use the mapping relationship between the required tactical index and the technical index reflecting the design requirement, realize the conversion and decomposition of the equipment capability requirement to the overall design scheme. The method includes the following steps: constructing a typical campaign background, establishing a typical combat task scene, determining the task effect and survivability, carrying out theoretical calculation and simulation analysis under multiple scenes, summarizing and comprehensively analyzing the simulation data, calculating the main technical and tactical indexes of the end confrontation, and determining the main indexes of the airborne jamming bomb and launching equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic countermeasures, and particularly relates to an airborne jamming bomb and launching equipment index calculation method for aircraft survivability. BACKGROUND

[0002] One of the core works in weapon equipment demonstration is to determine the main technical and tactical indexes of equipment, and the functional and performance index requirements of equipment, so as to provide basis and standards for subsequent research and development, test and inspection, etc. There is no literature found to be targeted at the aircraft survivability as a starting point, and to study the index calculation method of airborne jamming bomb and launching equipment. The existing research results mainly discuss the outline principles and methods of electronic countermeasure equipment index demonstration, and propose general steps, including: first step, military demand analysis, mainly including mission and system positioning analysis, main threat environment and combat target analysis, main use mode research; second step, capability demand and key capability index requirement analysis, requiring to propose main functions and main technical index requirements, such as jamming air space and frequency domain coverage range, jamming distance, jamming power, multi-target jamming capability and jamming pattern of jamming equipment, but rarely gives the index derivation process and forward design process. Third step, preliminary overall technical scheme analysis, mainly including preliminary overall technical scheme demonstration, key technology and feasibility analysis, mainly being to decompose and design the technical scheme according to the technical index, function and performance requirements, etc.

[0003] The airborne self-defense countermeasure equipment is mainly used for countering air defense weapon systems in combat, reducing the combat effectiveness of the air defense weapon systems on combat aircraft, and improving the survivability of the aircraft. The equipment is generally divided into two parts of warning and jamming, and the jamming device mainly includes chaff jamming bomb, infrared jamming bomb, and throwing active radar decoy, etc., which forms jamming and deception effect after being launched by the launcher. The existing literature discusses the outline principles and method steps of electronic countermeasure equipment index demonstration in principle, and no method is found to systematically demonstrate the main indexes of airborne jamming bomb and launching equipment from the overall consideration of aircraft survivability. The main tactical and technical indexes of the chaff jamming bomb, such as the RCS (Radar cross section, which is used to measure the reflection ability of radar wave of the target, unit: square meter) of the chaff cloud formed by the chaff jamming bomb, the number of launching times, the number of bombs, the radiation intensity of the infrared jamming bomb, the infrared jamming area, and the radiation power and working duration of the throwing active radar decoy, etc. are still lack of systematic and in-depth research. SUMMARY

[0004] Therefore, the application provides an airborne jamming bomb and launching equipment index calculation method for aircraft survivability, which can use the mapping relationship between the tactical indexes of the demand and the technical indexes of the reaction design demand, to realize the conversion and decomposition of the capability demand of the equipment to the overall design scheme.

[0005] The technical solutions of the present application are as follows:

[0006] An airborne jamming bomb and a launching device index calculation method for aircraft survivability, the specific process is:

[0007] Step one, a typical campaign background is constructed, the campaign background includes small-scale conflicts and frictions, small-scale battles, medium-scale wars and large-scale high-end wars;

[0008] Step two, based on the campaign background and the aircraft type, a combat mission scenario is established;

[0009] Step three, according to the aircraft type and the combat mission scenario, the task action effect is set, the action effect is the survival probability of the aircraft in completing the combat mission, and the completion of the combat mission index includes the damage probability;

[0010] Step four, for each type of aircraft, according to the combat mission scenario and the task action effect set above, the comprehensive simulation of the aircraft in each combat mission scenario is carried out, and the survival probability and the damage probability of each attack wave are iteratively adjusted and distributed;

[0011] Step five, from the simulation results of step four, the parameter set of the corresponding launching strategy model, the chaff / infrared jamming bomb and the thrown active radar decoy model is screened out when various types of threat objects implement the maximum threat and meet the set survival probability and damage probability;

[0012] Step six, based on the parameter set, the end confrontation technical index is calculated, and the technical index includes the launching frequency, the number of bombs, the RCS of the chaff jamming bomb forming a chaff cloud, the radiation intensity of the infrared jamming bomb, the infrared jamming area, the radiation power and the working duration of the thrown active radar decoy;

[0013] Step seven, for the end confrontation technical index, the single airborne jamming bomb and the single launching device index are calculated, the index includes the jamming bomb launch success rate, the size and weight, the chaff jamming bomb RCS, the radiation intensity of the infrared jamming bomb, the infrared jamming area, the jamming duration, and the supportability of the launching device.

[0014] Further, the process of setting the task action effect of the present application is:

[0015] The acceptable value P of the aircraft survival probability is set S , the relationship between the task action effect and the attack probability value of each wave is determined when the aircraft is attacked by N waves

[0016] P S =(1-P K1 )·(1-P K2 )…(1-PKN ) (Formula 1)

[0017] Wherein, P Kn is the attack probability of the nth wave.

[0018] Further, the specific process of step four of the present application is:

[0019] Based on the air defense missile seeker model and guidance control model, the air defense system radar and infrared sensor and weapon system model, the aircraft platform characteristic model and maneuvering avoidance model, the release strategy model, the chaff / infrared decoy and the thrown active radar decoy model, the battlefield environment condition model, through the simulation system, various combat situations are simulated multiple times, the combat situation parameters include the entering direction, distance, height difference, speed; the survival probability and the damage probability of each attack wave are iteratively adjusted and distributed.

[0020] Further, the specific process of step five of the present application is:

[0021] From the simulation data, the parameter set of the corresponding release strategy model, the chaff / infrared decoy and the thrown active radar decoy model when various types of threat objects implement the maximum threat.

[0022] Further, in step six of the present application, the RCS of the chaff cloud formed by the chaff decoy is not less than the maximum RCS of the aircraft:

[0023] σ=Kjb×σ max (Formula 2)

[0024] In the formula, σ is the RCS of the chaff cloud formed by single release; Kjb is the suppression coefficient, taking 3dB-10dB; σ max is the maximum RCS of the aircraft.

[0025] Further, the infrared radiation intensity of the infrared decoy of the present application cannot be lower than the maximum intensity compared with the infrared radiation characteristics of the aircraft:

[0026] J=Kjh×J max (Formula 3)

[0027] In the formula, J is the infrared radiation intensity peak rated value of the infrared decoy, Kjh is the suppression coefficient, taking 0dB-10dB; J max is the maximum infrared radiation intensity of the aircraft.

[0028] Further, the infrared interference area of the present application is not less than the infrared radiation area of the aircraft:

[0029] A=Ai×Nxs (Formula 4) In the formula, A is the shielding area formed after single launching of the infrared decoy bomb; Ai is the infrared radiation area corresponding to each pixel point at the test distance; Nxs is the total number of infrared interference pixel points formed.

[0030] Further, the radiation power of the throwing active radar decoy is not less than the maximum radar echo power reflected by the aircraft:

[0031] P = Kjt x P max (Formula 5)

[0032] In the formula, P is the equivalent radiation power of the throwing active radar decoy; Kjt is the suppression coefficient, taking 0dB-10dB; P max is the maximum radar echo power reflected by the aircraft.

[0033] Advantages

[0034] Firstly, the present application establishes the mapping relationship between the tactical index representing the use requirement and the technical index reflecting the design requirement for the airborne jamming bomb and launching equipment of the combat aircraft, realizes the conversion and decomposition of the capability requirement of the equipment to the overall design scheme.

[0035] Secondly, the present application promotes the further improvement of the demonstration theory of the aviation self-defense electronic warfare equipment, is convenient for the requirement management and the development of special software, and simultaneously provides the equipment index calculation process, can promote the improvement of the standard and improve the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0037] Figure 1 The index calculation method flow chart of the airborne jamming bomb and launching equipment facing the aircraft survivability. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in detail below with reference to the drawings.

[0039] It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict; and based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present disclosure.

[0040] It is important to note that the various aspects described throughout this disclosure can be combined in a wide variety of ways. It should be apparent that aspects described herein can be implemented in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect described herein can be implemented both as any stand-alone aspect or in combination with other aspects. In addition, a person skilled in the art will understand that any feature described herein can be implemented alone or in combination with other features.

[0041] Definitions of Terms:

[0042] Airborne self-defense countermeasure: combat aircraft through airborne electronic warfare equipment to the threat of its survival of air defense weapon system, etc. interference, suppression, deception and other combat operations.

[0043] Terminal countermeasure: refers to the electronic countermeasure in self-defense electronic warfare against incoming missiles or process weapons.

[0044] The design idea of the present application is: based on the idea of system engineering, the "battle background-task scene-capability demand-index calculation" top-down decomposition of the main index demand calculation method of the airborne jamming bomb and launching equipment for aircraft survivability, which contains several links such as constructing typical battle background, establishing typical combat task scene, clarifying task effect and survivability, carrying out theoretical calculation and simulation analysis in multiple scenes, summarizing and comprehensively analyzing simulation data, calculating terminal countermeasure main technical and tactical indexes, and clarifying the main index requirements of airborne jamming bomb and launching equipment, as shown in Figure 1 .

[0045] The embodiment of the present application provides an index calculation method of airborne jamming bomb and launching equipment for aircraft survivability, as shown in Figure 1 , and the specific process is:

[0046] First, construct small-scale conflict and friction, small-scale battle, medium-scale war, large-scale high-end war as typical battle background, and the corresponding countermeasure intensity is low intensity, medium intensity and high intensity.

[0047] This step mainly analyzes and determines the scale and intensity of combat aircraft participating in combat operations, the threat level it may face, and other factors based on the security situation. Among them, small-scale conflicts and frictions are generally random, low-intensity military operations that occur in non-war states, and the threats they face are generally single, without joint operations and system operations. For example, a two-ship formation responsible for air defense identification zone control collides with a large reconnaissance aircraft or a two-ship formation of incoming fighter aircraft, engages in a fight, and fires once, and a border patrol aircraft is attacked by an over-the-horizon ground-to-air missile. After being attacked, it is separated, etc. Small-scale battles, medium-scale wars, and large-scale high-end wars are generally different intensity combat operations that occur in a state of war, with increasing types and styles of threats, and the need to consider joint operations and system operations. Generally, it has strong planning and repetition, and small-scale battles may occur in the context of medium-scale wars, and medium-scale wars may occur in the context of large-scale high-end wars. In terms of participating forces, large-scale high-end wars generally organize forces within a country, including complete military forces, national defense mobilization forces, etc. The elements are complete, the range is large, the duration is long, and all military branches, weapons and equipment are covered, facing all types of combat targets. Small-scale battles generally occur in a local geographical space, with limited military branches, weapons and equipment, and generally do not have all combat elements, and have all or some of the following characteristics: for example, there is no complete and comprehensive intelligence support, air combat formations are not supported by land and sea forces and joint operations systems, the types and number of combat aircraft are small, the intensity of deployment is low, and the threat targets and combat targets are limited (only sporadic portable air defense missiles, no long-range air defense warning forces, weapons systems, and complete air defense systems to intercept threats, and no complete air defense system to intercept threats. Strike ground fixed targets or small groups of personnel) and other characteristics. The characteristics of medium-scale wars are generally between small-scale battles and large-scale high-end wars. The above characteristics will affect the force composition, threat type and intensity of combat, and combat support of subsequent combat mission scenario analysis.

[0048] Second, establish a typical combat mission scenario for a certain type of aircraft.

[0049] According to the aircraft type (fighter, bomber, transport, tanker, early warning, reconnaissance, jammer, various unmanned aircraft, etc.) and the task difficulty to establish a typical combat task scenario. For example, in a large-scale, high-intensity background, the equipment type of the attacking party is multi-functional fighter, fighter-bomber, the number is a two-plane formation, the task target is to attack the ground fixed target of the defending party, and the main combat object of the airborne self-defense countermeasure is the enemy interceptor, missile guidance radar, fire control and gun laying radar, radar guided missile and infrared guided missile, etc. The task target of the defending party is to intercept the incoming aircraft, and the combat object is the aircraft and the jamming bomb it drops. The equipment type includes fighter, long-range and medium-range air defense weapon system and its missile guidance radar, fire control and gun laying radar, radar guided missile and infrared guided missile, etc. The number of each type is generally not more than 2, and the total number is not more than 4. For example, the multi-functional fighter of the attacking party completes the attack task on the ground target by passing through the interception of the 1st wave of fighter of the defending party, the resistance of the 2nd wave of medium and long-range air defense missile, and the resistance of the 1st wave of portable air defense missile. The main action process is that the attacking aircraft fights with the fighter, ground-to-air missile, portable air defense missile, etc. of the defending party. In the process, according to the airborne threat warning information, etc., the aircraft is maneuvered to avoid and drop jamming bombs to interfere with the radar, infrared sensor or guided weapon, thereby reducing the combat effectiveness and improving the survivability of the aircraft. According to the aircraft type and the above data of different task difficulties, especially the scene where the attacking party needs to complete multiple target attacks and enter the combat area multiple times, the data may change significantly.

[0050] Thirdly, the task action effect is determined according to the aircraft type.

[0051] To complete the combat task of the attacking formation aircraft in a certain time and space, for example, the attack on the ground, while meeting the survivability requirements (the cost is within the acceptable range), the degree includes battle damage, task abandonment damage, slight damage, and perfect, such as one aircraft of a two-plane formation being slightly damaged, one aircraft being perfect or one aircraft being slightly damaged, and one aircraft being slightly damaged. The air threats encountered include missile guidance radar, fire control and gun laying radar, radar guided missile and infrared guided missile, etc. The total number of waves is not more than 4. When there is no jamming bomb, the single air-to-air missile kill probability is generally 75% to 85%. When the aircraft completes the combat task after multiple countermeasures (with the effect of jamming bomb), the survival probability is an acceptable value P S . The jamming bomb interference is effective in that the gun laying radar, guidance radar cannot lock the aircraft, and the radar or infrared guided missile cannot effectively kill the aircraft. Therefore, the self-defense countermeasure of the combat aircraft completing the combat task while the survival probability reaching the acceptable value is called effective jamming. Taking the second wave attack as an example, the survival probability acceptable value P S can be calculated as follows:

[0052] P S = (1-PK1 ) · (1 - P K2 ) · (1 - P K3 ) · (1 - P K4 ) (Formula 1)

[0053] In the formula, P Ki (i = 1, 2, 3, 4) are the kill probability of 1 wave of fighter jets, 2 waves of medium and long-range air defense missiles, and 1 wave of portable air defense missiles against aircraft, respectively, under the condition of ensuring P S The required conditions can be allocated and designed according to actual conditions, for example, P S Taking 80%, let each P Ki Equal, then the kill probability target value P KE = 5.4%.

[0054] Fourthly, according to the scene and combat effectiveness standard parameters set in the above steps, for each type of aircraft, the typical combat mission scene is traversed, and the test and simulation analysis method is iterated to generate corresponding test data, ensuring that the maximum capability requirement given to counter various types of threat objects has integrity and comprehensiveness, and the aircraft.

[0055] For example, the typical combat mission scene of a multi-functional fighter includes air sweeping, escort, air interception, and close-range air support, and the threat types should include radar and infrared guided weapons. The full-range counter wave low, medium, and high intensity should be no less than 1, 2, and 4, respectively, and the missile kill probability target value is the same as the above steps. Since the actual P Ki Has statistical characteristics, it needs to be based on the air-to-air missile seeker model and guidance control model, air defense system radar and infrared sensor and weapon system model, aircraft platform characteristic model and maneuvering avoidance model, launching strategy model, chaff / infrared decoy and throwing active radar decoy model, battlefield environment condition model, etc. Through professional simulation system, various combat situations (entry direction, distance, height difference, speed, etc.) are simulated multiple times; the survival probability and kill probability of each counter link are iteratively adjusted and allocated to improve and accumulate simulation data, providing a basis for comprehensive analysis and index demonstration.

[0056] Fifthly, the simulation data is summarized and analyzed comprehensively, classified and arranged according to the typical combat mission scene, key counter link aircraft survivability, etc. dimensions, completing the summary and confirmation.

[0057] The maximum capability requirement of various types of threat objects such as counter-radar and infrared guided weapons is given comprehensively, and the corresponding parameter set of the launching strategy model, the chaff / infrared jamming bomb and the thrown active radar decoy model is found out, which is the index requirement of the airborne jamming bomb and launching equipment for effectively completing the task. The launching index requirement filtered out in the above step three can meet the survival probability and kill probability requirements required in step three above, and the total effective jamming index requirement of each attack wave.

[0058] In the sixth step, the main technical and tactical indexes of the end countermeasure are calculated based on the parameter set, including the number of launches, the number of bombs, the RCS of the chaff jamming bomb forming a chaff cloud, the radiation intensity of the infrared jamming bomb, the infrared jamming area, the radiation power and working duration of the thrown active radar decoy.

[0059] Since the combat aircraft generally launches multiple jamming bombs at intervals or simultaneously through multiple launchers in one wave of countermeasure to form the required jamming effect, step six calculates the main technical and tactical indexes for the effective jamming requirement of each attack wave calculated in step five, so that the collection of these technical and tactical indexes can achieve the jamming effect.

[0060] This step gives the relationship between the core indexes in some key models:

[0061] The RCS of the chaff jamming bomb forming a chaff cloud: theoretically not less than the maximum RCS of the aircraft:

[0062] σ = Kjb x σ max (Formula 2)

[0063] In the formula, σ is the RCS of the chaff cloud formed by single launch, m2, the larger the better; Kjb is the suppression coefficient, generally 3dB-10dB; σ max is the maximum RCS of the aircraft, m2.

[0064] The radiation intensity of the infrared jamming bomb: theoretically not less than the maximum value of the infrared radiation characteristics of the aircraft:

[0065] J = Kjh x J max (Formula 3)

[0066] In the formula, J is the peak rated value of the infrared radiation intensity of the infrared jamming bomb, w / sr, the larger the better, generally kilowatt level; Kjh is the suppression coefficient, generally 0dB-10dB; J max is the maximum value of the infrared radiation intensity of the aircraft, w / sr.

[0067] The infrared jamming area: the shielding area A formed by single launch of the infrared jamming bomb should not be less than the infrared radiation area of the aircraft:

[0068] A = Ai x Nxs (Formula 4) In the formula, A is the shielding area formed after the single launch of the infrared decoy bomb, m2, the larger the better; Ai is the infrared radiation area corresponding to each pixel point at the test distance; Nxs is the total number of infrared interference pixel points formed.

[0069] Radiation power of the thrown active radar decoy: theoretically not less than the maximum radar echo power reflected by the aircraft:

[0070] P = Kjt x P max (Formula 5)

[0071] In the formula, P is the equivalent radiation power of the thrown active radar decoy, W, the larger the better; Kjt is the suppression coefficient, generally 0dB-10dB; P max is the maximum radar echo power reflected by the aircraft, W.

[0072] Number of launches: not less than 4 counter waves throughout the task, and each counter wave is calculated according to N launches, so the total number of launches is 4 x N.

[0073] Step 7: Qualitative and quantitative main function and performance index requirements are clearly proposed for single interference bomb and single launch device. The index includes interference bomb launch success rate, size and weight, foil interference bomb RCS, infrared interference bomb radiation intensity, infrared interference area, interference duration, and launch device supportability.

[0074] Step 6 mainly proposes the effectiveness requirements of single launch, and the index requirements of single interference bomb and single launch device are further decomposed accordingly:

[0075] RCS of foil interference bomb: theoretically the larger the better, in practice, combined with the constraints such as the aircraft's bomb carrying capacity, etc., to determine that when the aircraft's foil interference bomb load Nb is certain, Nb / (4 x N) foil interference bombs can be launched each time to form a foil cloud with RCS σ, so the RCS of single foil interference bomb is at least σ(4 x N) / Nb.

[0076] Radiation intensity of infrared interference bomb: same as the overall requirement in Step 6.

[0077] Infrared interference area: theoretically the larger the better, in practice, combined with the constraints such as the aircraft's bomb carrying capacity, etc., to determine that when the aircraft's infrared interference bomb load Nh is certain, Nh / (4 x N) infrared interference bombs can be launched each time to form an infrared radiation with shielding area A, so the interference area of single infrared interference bomb is at least A(4 x N) / Nh.

[0078] Interference duration: for gun laying radar, missile guidance radar, radar guided missile, etc., fighter aircraft through the deployment of chaff jamming bomb, throwing active radar decoy and maneuvering to complete the confrontation, generally time-consuming for seconds, combined with the need for a certain number of chaff jamming bomb to form the required RCS effect, so the single chaff jamming bomb interference duration should be consistent with the whole, about seconds; for infrared guided missiles, etc., the whole process is seconds, combined with the need for a certain number of infrared jamming bomb to form the required shielding area, so the single infrared jamming bomb interference duration should be consistent with the whole, about seconds; throwing active radar decoy due to different aerodynamic mechanism, the interference duration should be about 10 seconds.

[0079] The number of required chaff: the more interference bombs the aircraft carries, the better, according to the needs of the task, the total number required:

[0080] Nz = Nb + Nh + Nt (Formula 6) In the formula, Nz is the total number of required interference bombs; Nb is the number of chaff jamming bomb; Nh is the infrared jamming bomb; Nt is the number of throwing active radar decoy, and Nt: Nb = 1:3; Size and weight: the size specification of airborne jamming bomb needs to consider the performance indicators, volume and weight, standardization and support requirements, etc. Internationally, mainly square and circular caliber jamming bombs are used, such as 1" x 1" x 8", 1" x 2" x 8", Φ50mm x 200mm, etc. The weight of the material and structure design should be as light as possible.

[0081] Jamming bomb launch success rate: in engineering practice, combined with the installed conditions, etc., the total number required according to the task needs and the actual number carried usually exist certain differences, so the launch success rate should at least meet:

[0082] Pfs≥Nz / Nd (Formula 7) In the formula, Pfs is the launch success rate; Nz is the total number of required interference bombs; Nd is the total number of actual carried interference bombs.

[0083] Deployment equipment supportability: mainly considering the requirements of generalization, modularization and standardization, and adopting lightweight design, such as a magazine with 5 x 6 launches as a unit, which is convenient for the army to maintain, install, disassemble, store and transport, etc. Improve the task preparation efficiency and shorten the time of next operation, etc.

[0084] This step clearly proposes that the size specification of airborne jamming bomb should consider performance indicators, volume and weight, standardization and supportability, and the requirements of generalization, modularization and standardization of deployment equipment, and lightweight design.

[0085] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An aircraft survivability oriented airborne decoy and ejection device index calculation method, characterized in that, The specific process is: Step one, constructing a typical battle background, the battle background including small-scale conflicts and frictions, small-scale battles, medium-scale wars and large-scale high-end wars; Step two, based on the battle background and aircraft type, establishing a combat task scene; Step three, according to the aircraft type and combat task scene, setting task action effect, the action effect is the survival probability of the aircraft in completing the combat task, the completion of the combat task index includes the killing probability; Step four, for each type of aircraft, according to the combat task scene and task action effect set above, carrying out comprehensive simulation of the aircraft in each combat task scene, iteratively adjusting and distributing the survival probability and killing probability of each attack wave resistance link; Step five, from the simulation results of step four, screening out the parameter set of the corresponding deployment strategy model, chaff / infrared jamming bomb and throwing active radar decoy model when various types of threat objects implement the maximum threat; Step six, based on the parameter set, calculating the end confrontation technical index, the technical index including the number of deployments, the number of bombs, the RCS of the chaff jamming bomb forming a chaff cloud, the radiation intensity of the infrared jamming bomb, the infrared jamming area, the radiation power and working duration of the throwing active radar decoy; Step seven, for the end confrontation technical index, calculating the single launch aircraft jamming bomb and single deployment device index, the index including the jamming bomb launch success rate, size and weight, chaff jamming bomb RCS, infrared jamming bomb radiation intensity, infrared jamming area, jamming duration, deployment device support.

2. The method according to claim 1, wherein The process of setting the task action effect is: Setting the acceptable value of the aircraft survival probability P S , setting the aircraft to be attacked by N times, determining the relationship between the task action effect and the probability value of each attack as follows: P S = (1-P K1 ) · (1-P K2 ) … (1-P KN ) (Formula 1) where P Kn is the probability of attack for the nth wave.

3. The method according to claim 2, wherein the method is characterized by: The specific process of step four is: Based on the air-to-air missile seeker model and guidance control model, air defense system radar and infrared sensor and weapon system model, aircraft platform characteristic model and maneuvering avoidance model, deployment strategy model, chaff / infrared jamming bomb and throwing active radar decoy model, battlefield environment condition model, through the simulation system, multiple comprehensive simulations are carried out on various combat situations, the combat situation parameters including entering direction, distance, height difference, speed; iteratively adjusting and distributing the survival probability and killing probability of each attack wave resistance link.

4. The method according to claim 3, wherein, The specific process of step five is: From the simulation data, the parameter set of the corresponding deployment strategy model, chaff / infrared jamming bomb and throwing active radar decoy model when various types of threat objects implement the maximum threat is screened out.

5. The method of claim 1, wherein the method is characterized by: In step six, the RCS of the chaff jamming bomb forming a chaff cloud is not less than the maximum RCS of the aircraft: σ=Kjb×σ max (Formula 2) In the formula, σ is the RCS of the chaff cloud formed by single deployment; Kjb is the suppression coefficient, taking 3dB~10dB; σ max RCSmax is the maximum value of the RCS of the aircraft.

6. According to the aircraft survivability oriented airborne jamming bomb and deployment device index calculation method of claim 1, the radiation intensity of the infrared jamming bomb cannot be lower than the maximum intensity compared with the infrared radiation characteristics of the aircraft: J = Kjh x J max (Formula 3) In the formula, J is the rated value of the infrared radiation intensity peak of the infrared decoy, Kjh is the suppression coefficient, and is taken as 0dB-10dB; J max is the maximum value of the infrared radiation intensity of the aircraft.

7. According to the aircraft survivability oriented airborne jamming bomb and deployment device index calculation method of claim 1, the infrared jamming area is not less than the infrared radiation area of the aircraft: A=Ai×Nxs (Formula 4) In the formula, A is the shielding area formed after the single launch of the infrared decoy bomb; Ai is the infrared radiation area corresponding to each pixel point at the test distance; Nxs is the total number of infrared interference pixel points formed.

8. The method according to claim 1, wherein the radiation power of the jettisonable active radar decoy is not less than the maximum radar echo power reflected by the aircraft. P = Kjt x P max (Formula 5) In the formula, P is the equivalent radiated power of the active radar decoy; Kjt is the suppression coefficient, taking 0dB-10dB; P max is the maximum radar echo power reflected by the aircraft.

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