Radar countermeasure equipment modeling method based on reconfigurable component technology

Abstract

A radar confrontation equipment modeling method based on a reconfigurable component technology adopts a modularization modeling mode to construct a radar confrontation equipment model framework required by an electronic confrontation simulation deduction system, and the main design idea is that modularization modeling is carried out on an equipment simulation model, reusable components are not repeatedly modeled any more, the development efficiency is improved, and the modeling cost is reduced. The model stability is improved. Based on the modularization modeling idea, splitting of common model components and fusion with an existing model are fully considered in the model design process, a complex equipment function model is split into independent function components, the modeling complexity of each component is reduced, the function components can be repeatedly used, the modeling workload is reduced, and meanwhile the modeling efficiency is improved. And the stability of the equipment model can be effectively improved.

Description

Technical field:

[0001] The invention belongs to the technical field of electronic countermeasures, and mainly relates to a radar countermeasure equipment modeling method based on reconfigurable component technology. Background technology:

[0002] At present, the functional-level modeling method of electronic countermeasure equipment is mainly based on the theory of electromagnetic wave space propagation, signal processing, and the tactical and technical indicators and parameters of electronic countermeasure equipment to construct the functional-level simulation model of the equipment. It can basically meet the research needs of combat simulation, effectiveness evaluation, innovation and application of electronic countermeasure reconnaissance, electronic interference, electronic defense and other equipment.

[0003] The electronic countermeasure simulation process is tightly embedded in the context of joint operations, encompassing multiple domains, including radar countermeasures, communications countermeasures, optoelectronic countermeasures, and navigation countermeasures. The electronic countermeasure equipment involved in these simulations varies in their operating systems, technical parameters, and platforms, resulting in diverse and complex countermeasure behaviors and frequent interactions with other electronic countermeasure equipment models. These requirements significantly increase the difficulty of developing electronic countermeasure simulation systems and pose challenges to the development of physical equipment models. Researchers urgently need to standardize development standards and improve the efficiency of simulation system development. The foundation of simulation systems is equipment models. Unified model development standards and standardized procedures are crucial for improving the efficiency and robustness of simulation systems. Summary of the invention:

[0004] In order to overcome the above-mentioned deficiencies, the present invention provides a radar countermeasure equipment modeling method based on reconfigurable component technology.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] A radar countermeasure equipment modeling method based on reconfigurable component technology, comprising:

[0007] 1) The airborne radar countermeasure equipment model was abstracted. Considering component reuse, reconstruction, and functional complexity, the components required for the radar countermeasure equipment model were designed and coded. The equipment was divided into different components based on its operating principle, technical system, and functional category. These components were then decomposed into three levels from high to low: functional components, composite components, and low-level components.

[0008] 2) Design the airborne radar countermeasure equipment model architecture from the perspectives of functional model, behavioral model, and data model. The equipment model architecture is characterized and described from three perspectives: working mode model, equipment functional model, and equipment component model. With the functional model as the core, the equipment model architecture integrates the functional components, composite components, and underlying components downwards. Upwards, through the working mode model, it describes the series and parallel relationships of the equipment functional model at different times. The data model stores the basic data required by the model.

[0009] The functional model integrates equipment functions in the form of components to represent the static functions of the equipment; the working mode model integrates equipment functions and represents the equipment behavior status from the perspective of behavioral modeling; the data model provides dedicated data for the functional model and behavioral model;

[0010] 3) When modeling airborne radar countermeasure equipment, select and integrate the corresponding equipment components based on the specific functional composition, technical system, and implementation method of the equipment. Within the agreed equipment model architecture, model the equipment according to its functions, operating modes, and data requirements. Alternatively, based on the underlying components, reconstruct and expand its functions, and reorganize composite components to design and reconstruct new components that meet the needs of specific equipment, thus completing the corresponding electronic countermeasure equipment modeling. The underlying components are designed and implemented according to object-oriented thinking and can represent the basic functions and attributes of the equipment.

[0011] The composite component is a collection of the underlying components, which implements the more complex functions and properties of the equipment through inheritance and reference, and is comprehensively expressed as the local functions of the equipment model;

[0012] The functional component is a collection of composite components, which are compiled by inheritance and reference to realize the top-level functions and properties of the model, and are comprehensively expressed as a certain type of function of the equipment model;

[0013] The functional component calls the composite component, indirectly calls the underlying component, and combines the functional components required for the equipment to comprehensively realize the function of the airborne radar countermeasure equipment.

[0014] Taking the modeling of airborne radar countermeasure equipment as an example, the functional models of the airborne radar countermeasure equipment include: multi-band radar warning function model, multi-band electronic support function model, networked electronic support function model, multi-band electronic attack function model, high-gain support interference function model and multi-band self-defense interference function model.

[0015] Taking the modeling of airborne radar countermeasure equipment as an example, the working mode of the airborne radar countermeasure equipment includes three working sub-modes: passive detection mode, self-defense interference mode and support interference mode; the working mode of the airborne radar countermeasure equipment is determined by behavioral state design.

[0016] The behavioral state design includes: simultaneity design of each working sub-mode and state machine design; wherein, the simultaneity design specifies which working sub-modes can work simultaneously and which working sub-modes need to work in series under each working mode; the state machine design specifies the state transition requirements of each working sub-mode when the equipment model is working.

[0017] The equipment data model design is completed by forming an equipment parameter data file through the process of function performance index setting, working mode state machine setting, and model structure setting.

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0019] The present invention provides a radar countermeasure equipment modeling method based on reconfigurable component technology. It is designed according to object-oriented thinking and can be reconfigured and reused through inheritance, derivation, reference, etc. After being instantiated, it can be independently deployed and can interact with other components through external attributes and behaviors or be reconfigured by combining with each other. The component modeling technology is used to make further high-level abstractions of the equipment model in the equipment modeling process, and the equipment model is broken down into a series of components. The development process of the equipment model is turned into a component assembly process like building blocks. Developers can directly derive or construct equipment models by reusing components or developing new components and assembling components. The equipment modeling does not need to be developed completely from scratch. The reconfigurable component modeling method greatly reduces the workload of equipment model development. Components developed by different people can be reused with each other, which increases the utilization efficiency of reusable components and effectively shortens the development cycle of the equipment model. Each component has been fully tested to ensure the robustness of the equipment model and the simulation deduction system. Description of the drawings:

[0020] Figure 1 It is a schematic diagram of the composition and calling relationship between composite components and underlying components;

[0021] Figure 2 It is a schematic diagram of the composition and calling relationship between functional components and composite components;

[0022] Figure 3 This is a schematic diagram of the airborne radar countermeasure equipment model architecture;

[0023] Figure 4 This is a schematic diagram of the composition of the airborne radar countermeasure equipment model;

[0024] Figure 5 This is a schematic diagram of the functional modeling of airborne radar countermeasure equipment;

[0025] Figure 6 This is a schematic diagram of the modeling of the working mode of airborne radar countermeasure equipment;

[0026] Figure 7 This is a schematic diagram of the state machine for self-defense jamming mode;

[0027] Figure 8 It is the design process of airborne radar countermeasure equipment model;

[0028] Figure 9 It is the interactive working principle of the airborne radar countermeasure equipment model;

[0029] Figure 10 It is the external interaction relationship of the airborne radar countermeasure equipment model;

[0030] Figure 11 It is a simulation deduction confrontation scenario diagram. Specific implementation method:

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] The attached figure shows a radar countermeasure equipment modeling method based on reconfigurable component technology. Designed according to object-oriented principles, it can be reconfigured and reused through inheritance, derivation, and reference. After instantiation, it can be independently deployed and can interact with other components through external attributes and behaviors or be reconfigured through combination. Component-based modeling technology is used to further abstract the equipment model during the equipment modeling process, breaking it down into a series of components. This transforms the equipment model development process into a component assembly process, much like building blocks. The specific steps are as follows:

[0033] 1) The airborne radar countermeasure equipment model was abstracted. Considering component reuse, reconstruction, and functional complexity, the components required for the radar countermeasure equipment model were designed and coded. The equipment was divided into different components based on its operating principle, technical system, and functional category. These components were then decomposed into three levels from high to low: functional components, composite components, and low-level components.

[0034] like Figure 1 As shown, the underlying components are designed and implemented according to object-oriented thinking, and can represent the basic functions and properties of equipment; the composite components are a collection of the underlying components, which use inheritance and reference to implement more complex functions and properties of equipment, and are comprehensively expressed as local functions of the equipment model;

[0035] like Figure 2As shown, the functional component is a collection of composite components, which are compiled through inheritance and reference to implement the top-level functions and properties of the model, and are comprehensively manifested as a certain type of function of the equipment model; the functional component calls the composite component, indirectly calls the bottom-level component, and combines the functional components required for the equipment to comprehensively realize the function of the airborne radar countermeasure equipment.

[0036] The essence of the component modeling method is to complete the digital modeling of the equipment entity through decomposition, modeling and assembly, based on the composition, function, technical and tactical indicators and parameters of the physical equipment, using the component modeling concept. The present invention adopts a top-down decomposition method to decompose the equipment into independent components according to its function. According to the principle of high cohesion and low coupling of components within the equipment, the equipment is functionally deconstructed, and component design and coding are carried out. The equipment model function is realized by integrating components. Information is transmitted between components through sharing data and control instructions. Information interaction is completed between models through message driving and function calling.

[0037] 2) In order to build an efficient and universal entity model framework, improve the convenience and simplicity of model component integration, improve the reusability and reconfigurability of model components, and reduce development workload, it is necessary to design a unified model framework. According to the agreed model architecture protocol and rules, the model components are integrated and assembled to build the airborne radar countermeasure equipment model. At the same time, it can also simplify the standards and rules for the interaction between the equipment model and the simulation engine.

[0038] The airborne radar countermeasure equipment model architecture is designed from the perspectives of functional model, behavioral model and data model. The equipment model architecture is characterized and described from three perspectives: working mode model, equipment functional model and equipment component model. The equipment model architecture takes the functional model as the core, integrates the functional components, composite components and underlying components downward, and describes the series and parallel relationship of the equipment functional model at different times upward through the working mode model. The data model saves the basic data required by the model. The airborne radar countermeasure equipment model architecture is composed of the following components: Figure 3 shown.

[0039] The functional model integrates equipment functions in the form of components to represent the static functions of the equipment; the working mode model integrates equipment functions and represents the equipment behavior status from the perspective of behavioral modeling; the data model provides dedicated data for the functional model and behavioral model;

[0040] 3) When modeling airborne radar countermeasure equipment, select and integrate the corresponding equipment components based on the specific functional composition, technical system, and implementation method of the equipment. Under the agreed equipment model architecture, model the equipment according to its functions, working mode, and data requirements. Alternatively, based on the underlying components, reconstruct and expand its functions, and reorganize the composite components to design and reconstruct new components that meet the requirements of specific equipment to complete the corresponding electronic countermeasure equipment modeling.

[0041] The airborne radar countermeasure equipment is modeled through functional modeling, working mode modeling, and data modeling. In this process, by calling the components in the component library, the relevant components can be quickly reused. The functional model indirectly calls the equipment parameter data file through the component, thereby simulating the function of the equipment at the functional level. The airborne radar countermeasure equipment model consists of the functional model, working mode, component library, and equipment data parameter file, such as Figure 4 shown.

[0042] In combination with the requirements of electronic countermeasure simulation and deduction, the airborne radar countermeasure equipment functional model designed by the present invention includes multiple working sub-modes, namely, multi-band radar warning functional model, multi-band electronic support functional model, networked electronic support (ESM, Electronic Support Measures) functional model, multi-band electronic attack functional model, high-gain support jamming functional model, and multi-band self-defense jamming functional model. Figure 5 shown.

[0043] Working mode design is also called behavioral design. Combined with the requirements of electronic countermeasure simulation, the working modes of airborne radar countermeasure equipment designed in this paper include passive detection mode, self-defense interference mode, and support interference mode. The airborne radar countermeasure equipment model starts the passive detection mode by default. The working mode of airborne radar countermeasure equipment is determined by behavioral state design. The sub-working modes under each working mode are detailed in Figure 6 shown.

[0044] Behavioral state design includes the simultaneity design of each operating sub-mode and the state machine design. The simultaneity design mainly specifies which operating sub-modes can operate simultaneously and which operating sub-modes must operate in series within each operating mode. The state machine design mainly specifies the state transition requirements of each operating sub-mode when the equipment model is operating.

[0045] Taking the self-defense jamming mode as an example, the behavioral states are designed. The self-defense jamming mode is primarily used for defensive operations. When the carrier aircraft is tracked and locked by an enemy aircraft's onboard fire control radar weapon system, or when an enemy missile is launched or approaching, the carrier aircraft employs electronic self-defense measures for self-protection. In the self-defense jamming mode, the available functions primarily include the multi-band radar warning function model and the multi-band self-defense jamming function model. Self-defense jamming = {Band 1 radar warning, Band 2 radar warning, Band 3 radar warning, Band 1 self-defense jamming, Band 2 / 3 self-defense jamming} = {WT1, WT2, WT3, WT4, WT5}. In the self-defense jamming mode, the parallelism design is shown in Table 1, where BL indicates parallel operation (can operate simultaneously) and CL indicates series operation (cannot operate simultaneously).

[0046] Table 1 Parallel design of self-defense jamming working mode

[0047] model WT1 WT2 WT3 WT4 WT5 WT1 / BL BL CL BL WT2 BL / BL BL CL WT3 BL BL / BL CL WT4 CL BL BL / BL WT5 BL CL CL BL /

[0048] The Band 1 self-defense jamming model and the Band 2 / 3 self-defense jamming model are configured with their own hardware and software resources, allowing them to operate simultaneously. Radar warning and self-defense jamming cannot operate simultaneously and are therefore configured to operate in tandem. Using the same method, the behavior states for passive detection mode and support jamming mode can be designed separately.

[0049] After the self-defense interference mode is activated, the band 1 self-defense interference function model and the band 2 / 3 self-defense interference function model are activated by default. After the band 1 self-defense interference function model and the band 2 / 3 self-defense interference function model interfere for a period of time (the default is 3 seconds), the band 1 radar warning, band 2 radar warning, and band 3 radar warning functions are activated respectively for reconnaissance. After the target is detected, the corresponding self-defense interference function is immediately activated. When no target is detected, it enters the end state. The user can also start the corresponding working mode through the equipment display and control interface. See the self-defense interference mode state machine. Figure 7 shown.

[0050] The airborne radar countermeasure equipment model is designed according to the process of functional model design, setting functional performance index parameters, working mode model design, setting working mode state machine, model synthesis, model verification, etc. In the process of functional performance index setting, working mode state machine setting, and model structure setting, the equipment parameter data file is formed to complete the equipment data model design, such as Figure 8 shown.

[0051] The physical form of the equipment model is: an equipment model parameter data file (XML format), a set of adapted components (DLL format), and the XML file + DLL file constitute the corresponding equipment model.

[0052] Taking the modeling of airborne radar countermeasure equipment as an example, the external interaction design of the airborne radar countermeasure equipment model of the present invention is analyzed below.

[0053] The airborne radar countermeasure equipment model obtains the radar signal reaching its antenna aperture from the simulation deduction system / simulation engine through the radar signal receiving buffer, and is processed by each functional model; each functional model has a corresponding antenna feed component, interference signal generation component, etc., and shares the reconnaissance target buffer and tracking interference channel buffer. All functional models are enabled or disabled through the working mode setting parameters. The interactive working principle of the airborne radar countermeasure equipment model and the radar equipment model can be found in Figure 9 shown.

[0054] According to the simulation engine scheduling architecture design of the simulation deduction system, the airborne radar countermeasure equipment model does not interact directly with other radar equipment models, but interacts with the simulation deduction system simulation engine. The airborne radar countermeasure equipment model mainly interacts with the space communication service and the message coordination service. The interaction with the space communication service is mainly to complete the transmission and reception of the equipment radiation signal propagation event, and the interaction with the message coordination service is mainly to complete the detection track reporting and intelligence reception. The external interaction relationship of the airborne radar countermeasure equipment model is as follows: Figure 10 shown.

[0055] The following experiments and verifications are conducted on the airborne radar countermeasure equipment model of the present invention:

[0056] In order to verify the effectiveness of the component-based modeling method of airborne radar countermeasure equipment in this paper, an electronic countermeasure simulation system was designed. Figure 11 As shown in the figure, a simulation scenario was constructed based on the simulation system, simulation engine, and equipment function model to verify the equipment modeling method proposed in this paper. The simulation results show that the proposed method is effective and feasible, and the constructed equipment model can meet the requirements of the electronic countermeasure simulation system construction.

[0057] 1) Verification scenario design: The confrontation simulation scenario is as follows: the blue side has an early warning aircraft equipped with an early warning radar, flying over area 2, performing alert and air command tasks. The flight route is runway-shaped, 50km long and 10km wide. Under the guidance of the ground command post, the red side dispatches 2 fighters and 1 electronic warfare aircraft (equipped with airborne radar countermeasure equipment) to form an aircraft formation, flying according to the predetermined route, to carry out the task of attacking the blue side's radar position. The electronic warfare aircraft performs accompanying support interference, interferes with the blue side's early warning aircraft, and covers the fighter's breakthrough. During this period, the blue side's early warning aircraft always monitors the red side's actions in the direction of area 1. Taking this as the confrontation simulation scenario, the equipment modeling method of the present invention is analyzed and verified. The electronic warfare aircraft's onboard radar countermeasure equipment is turned on throughout the process. After searching for the blue side's airborne early warning radar signal, it starts interference according to the simulation timing requirements to interfere with the detection and tracking of the early warning airborne radar. The specific confrontation scenario is as follows Figure 11 shown.

[0058] 2) Simulation and Countermeasure Effectiveness Analysis: During the simulation, the Red Army's aircraft formation entered the flight path from Point A. Simultaneously, the electronic warfare aircraft activated passive detection mode, with key operating parameters shown in Table 2. The airborne early warning radar operated in airborne early warning monitoring mode, with key operating parameters shown in Table 3. At Point B, 214.3 km from the Blue Army's early warning aircraft, the electronic warfare aircraft detected the airborne early warning radar signal. The signal pattern is shown in Table 4.

[0059] Table 2 Main operating parameters of electronic warfare aircraft passive detection mode

[0060]

[0061] Table 3 Main operating parameters of airborne early warning radar in airborne early warning monitoring mode

[0062]

[0063] Table 4 Parameters of early warning airborne radar signals detected by electronic warfare aircraft

[0064] Carrier frequency (MHz) Repetition rate (us) Pulse width (us) Signal power (dBw) 379.35 4000 13 -69

[0065] To facilitate the simulation process, at point B, the electronic warfare aircraft did not engage jamming mode, and the formation continued along its route. At point C, the AWACS radar detected three high-speed targets moving northwestward and randomly switched to sector-focused scanning mode, narrowing the scanning sector and focusing on that area. After identifying three high-threat targets, it switched to sector-focused tracking mode. Specific operating parameters and target tracking results are shown in Table 6.

[0066] Table 5 Main operating parameters and target tracking results of the sector-focused tracking mode of the early warning airborne radar

[0067]

[0068] Table 6 Jamming signal parameters for electronic warfare aircraft support jamming mode

[0069]

[0070] The electronic warfare aircraft arrives at point D and activates support jamming mode. The jamming signal parameters are shown in Table 7. At this point, the AWACS radar is jammed and unable to detect the target. In this example, the airborne radar countermeasure model incorporates four jamming patterns: broadband noise, dense false targets, smart noise, and intermittent sampling.

[0071] During the simulation, the main operating parameters of the electronic warfare aircraft's passive detection mode are shown in Table 2. The airborne early warning radar was able to conduct early warning monitoring of the northwest region according to the parameters set in Table 3. Table 4 shows that the electronic warfare aircraft-borne radar countermeasure equipment was able to detect the airborne early warning radar signal, and the detected signal pattern was consistent with the actual operating signal pattern of the airborne early warning radar model. Tables 5 and 6 show that the airborne radar countermeasure equipment model's operating modes were able to operate according to the pre-designed timing relationship, with correct behavior and normal functionality in each operating mode. It was able to counter the airborne early warning radar using interference patterns such as broadband noise, dense false targets, smart noise, and intermittent sampling. Restarting the simulation, the airborne early warning radar employed various anti-interference measures, including frequency agility, sidelobe cancellation, sidelobe concealment, waveform agility, and RF shielding, to counter the electronic warfare aircraft-borne radar countermeasure equipment. The airborne radar countermeasure equipment model was able to simulate the corresponding countermeasure processes.

[0072] The above simulation and deduction results show that the model architecture, equipment functional components, composite components, underlying components, functional models, working modes, behavioral models, data models, and external interactions designed in this paper are all correct, and can simulate the corresponding functions of airborne radar countermeasure equipment. The constructed model can meet the simulation and deduction requirements and support the research on countermeasure simulation and deduction, equipment application, and equipment effectiveness evaluation.

[0073] The parts not described in detail in the above content are prior art and are therefore not described in detail.

Claims

1. A radar countermeasure equipment modeling method based on reconfigurable component technology, characterized by: include: 1) The airborne radar countermeasure equipment model was abstracted. Considering component reuse, reconstruction, and functional complexity, the components required for the radar countermeasure equipment model were designed and coded. The equipment was divided into different components based on its operating principle, technical system, and functional category. These components were then decomposed into three levels from high to low: functional components, composite components, and low-level components. 2) Design the airborne radar countermeasure equipment model architecture from the perspectives of functional model, behavioral model, and data model. The equipment model architecture is characterized and described from three perspectives: working mode model, equipment functional model, and equipment component model. With the functional model as the core, the equipment model architecture integrates the functional components, composite components, and underlying components downwards. Upwards, through the working mode model, it describes the series and parallel relationships of the equipment functional models at different times. The data model stores the basic data required by the model. The functional model integrates equipment functions in the form of components to represent the static functions of the equipment; the working mode model integrates equipment functions and represents the equipment behavior status from the perspective of behavioral modeling; the data model provides dedicated data for the functional model and behavioral model; 3) When modeling airborne radar countermeasure equipment, select and integrate the corresponding equipment components based on the specific functional composition, technical system, and implementation method of the equipment. Within the agreed equipment model architecture, model the equipment according to its functions, operating modes, and data requirements. Alternatively, based on the underlying components, reconstruct and expand its functions, reorganize the composite components, and design and reconstruct new components that meet the requirements of specific equipment to complete the corresponding electronic countermeasure equipment modeling.

2. The radar countermeasure equipment modeling method based on reconfigurable component technology according to claim 1 is characterized in that: The underlying components are designed and implemented according to object-oriented concepts and can represent the basic functions and properties of the equipment; The composite component is a collection of the underlying components, which implements the more complex functions and properties of the equipment through inheritance and reference, and is comprehensively expressed as the local functions of the equipment model; The functional component is a collection of composite components, which are compiled by inheritance and reference to realize the top-level functions and properties of the model, and are comprehensively expressed as a certain type of function of the equipment model; The functional component calls the composite component, indirectly calls the underlying component, and combines the functional components required for the equipment to comprehensively realize the function of the airborne radar countermeasure equipment.

3. The radar countermeasure equipment modeling method based on reconfigurable component technology according to claim 1 is characterized in that: The functional models of the airborne radar countermeasure equipment include: a multi-band radar warning functional model, a multi-band electronic support functional model, a networked electronic support functional model, a multi-band electronic attack functional model, a high-gain support interference functional model and a multi-band self-defense interference functional model.

4. The radar countermeasure equipment modeling method based on reconfigurable component technology according to claim 1 is characterized in that: The working mode of the airborne radar countermeasure equipment includes three working sub-modes, namely: passive detection mode, self-defense interference mode and support interference mode; the working mode of the airborne radar countermeasure equipment is determined by behavioral state design.

5. The radar countermeasure equipment modeling method based on reconfigurable component technology according to claim 4 is characterized in that: The behavioral state design includes: simultaneity design of each working sub-mode and state machine design; wherein, the simultaneity design specifies which working sub-modes can work simultaneously and which working sub-modes need to work in series under each working mode; the state machine design specifies the state transition requirements of each working sub-mode when the equipment model is working.

6. The radar countermeasure equipment modeling method based on reconfigurable component technology according to claim 1 is characterized in that: The equipment data model design is completed by forming an equipment parameter data file through the process of function performance index setting, working mode state machine setting, and model structure setting.

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