Radio frequency compatible method and device, equipment and storage medium

Abstract

The invention discloses a radio frequency compatible method, device and equipment and a storage medium, and relates to the field of avionics, and the method comprises the steps: in an electronic warfare unmanned aerial vehicle system, carrying out simulation based on preset electromagnetic field simulation software, an antenna radiation model of each frequency device of an unmanned aerial vehicle and a vehicle body shape, determining a conflict source device in each frequency device by using the spatial isolation and the signal intensity obtained by simulation; wherein the conflict source device is a device of which the transmitting frequency band and the receiving frequency band among the frequency devices meet a preset frequency band similarity condition; analyzing time domain characteristics and frequency domain characteristics of the conflict source equipment to obtain an analysis result; and determining an interface design of the conflict source device by using the analysis result, and making a radio frequency management strategy based on the interface design and a current combat scene, so as to carry out corresponding radio frequency compatible management on the conflict source device based on the radio frequency management strategy. Therefore, the radio frequency compatibility of the unmanned aerial vehicle frequency equipment can be improved.

Description

Technical Field

[0001] The present invention relates to the field of avionics, and in particular to a radio frequency compatibility method, device, equipment and storage medium. Background Art

[0002] In the field of modern aviation technology, the application scope of drones is constantly expanding, especially in the process of transitioning to the special operations paradigm, drones are gradually taking on more complex and critical tasks.

[0003] When drones are equipped with electronic warfare equipment, their electromagnetic compatibility conditions become even worse. The addition of electronic warfare equipment further increases the complexity of electromagnetic signals and interference sources, making the already tight RF resources even more crowded and making RF compatibility between various devices difficult. When dealing with the special electromagnetic environment of drones, existing RF compatibility technologies are unable to effectively coordinate the frequency usage between many devices, resulting in a decline in equipment performance, which seriously affects the efficiency and reliability of drone missions.

[0004] Therefore, how to improve the RF compatibility of frequency-using equipment in electronic warfare UAV systems is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a radio frequency compatibility method, device, equipment and storage medium, which can improve the radio frequency compatibility of frequency-using equipment in electronic warfare drone systems. The specific scheme is as follows:

[0006] In a first aspect, the present invention provides a radio frequency compatibility method, comprising:

[0007] In an electronic warfare UAV system, simulation is performed based on preset electromagnetic field simulation software, antenna radiation models of various frequency-using devices of the UAV, and the body shape, and the spatial isolation and signal strength obtained by simulation are used to determine the conflict source device in each frequency-using device; wherein the conflict source device is a device whose transmission frequency band and receiving frequency band between each frequency-using device meet the preset frequency band similarity condition; the preset frequency band similarity condition is a condition that characterizes the existence of overlapping frequency bands between the transmission frequency band and the receiving frequency band;

[0008] Analyzing the time domain characteristics and frequency domain characteristics of the conflict source device to obtain an analysis result;

[0009] The analysis results are used to determine the interface design of the conflict source device, and a radio frequency management strategy is formulated based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy.

[0010] Optionally, simulating based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the unmanned aerial vehicle, and the airframe shape, and determining the conflict source devices among the frequency-using devices by using the spatial isolation and signal strength obtained from the simulation, includes:

[0011] Inputting each frequency-using device and the airframe shape in the antenna radiation model of the unmanned aerial vehicle into the preset electromagnetic field simulation software for electromagnetic simulation;

[0012] During the electromagnetic simulation process, determining the spatial isolation and signal strength of the electromagnetic wave emitted by the electromagnetic wave transmitting device to the electromagnetic wave receiving device, and determining the conflict source device from each frequency-using device based on the spatial isolation and the signal strength.

[0013] Optionally, using the analysis result to determine the interface design of the conflict source device, includes:

[0014] When the analysis result indicates that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain satisfies the first preset frequency band change condition, configuring a first latching timing interface and a first compatible parameter interface for the conflict source device;

[0015] Wherein, the first latching timing interface is used to transmit the first amplitude of the level signal to represent whether the conflict source device is radiating electromagnetic waves through the first amplitude, and the first compatible parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device;

[0016] When the analysis result indicates that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain is fixed and unchanged, configuring a second latching timing interface for the conflict source device;

[0017] Wherein, the second latching timing interface is used to transmit the second amplitude of the level signal to represent whether the conflict source device is radiating electromagnetic waves in a fixed frequency band through the second amplitude;

[0018] When the analysis result indicates that the time domain of the conflict source device is a continuous wave signal and the instantaneous working frequency band in the frequency domain satisfies the second preset frequency band change condition, configuring a second compatible parameter interface for the conflict source device;

[0019] Wherein, the second compatible parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device when the conflict source device switches the radio frequency band.

[0020] Optionally, formulating a radio frequency management strategy based on the interface design and the current combat scenario, and performing corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy, includes:

[0021] Determine the task priority of the conflict source device based on the current combat scenario;

[0022] Formulate corresponding radio frequency management strategies for the conflict source device by using the interface design of the conflict source device and the task priority, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategies.

[0023] Optionally, the step of formulating corresponding radio frequency management strategies for the conflict source device by using the interface design of the conflict source device and the task priority, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategies includes:

[0024] In the current combat scenario, determine the conflict source devices that meet the preset high-priority task conditions as the first conflict source devices based on the combat scenario;

[0025] Determine the conflict source devices that meet the preset low-priority task conditions as the second conflict source devices based on the combat scenario;

[0026] Monitor the instantaneous working frequency band of the second conflict source device and obtain the monitoring result;

[0027] If the monitoring result indicates that the instantaneous working frequency band of the second conflict source device is fixed and unchanged, determine the first time window for time-sharing operation based on the timing characteristics and the interface design of the first conflict source device, so as to determine the first radio frequency management strategy; the time-sharing operation means that the first conflict source device and the second conflict source device work in different time periods;

[0028] If the monitoring result indicates that the instantaneous working frequency band of the second conflict source device meets the current first preset frequency band change condition, send the instantaneous working bandwidth and instantaneous working frequency band of the first conflict source device to the second conflict source device based on the interface design, so that the second conflict source device works in the frequency band range other than the instantaneous working frequency band of the first conflict source device to determine the second radio frequency management strategy;

[0029] Determine the electromagnetic wave receiving device and the electromagnetic wave transmitting device in the conflict source device. If the instantaneous working frequency band of the electromagnetic wave receiving device meets the preset wideband condition, the electromagnetic wave receiving device performs notch processing on the instantaneous working frequency band of the electromagnetic wave transmitting device to determine the third radio frequency management strategy;

[0030] Perform corresponding radio frequency compatibility management on the conflict source device based on the first radio frequency management strategy, the second radio frequency management strategy, and the third radio frequency management strategy.

[0031] Optionally, in the process of sending the instantaneous working bandwidth and instantaneous working frequency band of the first conflict source device to the second conflict source device based on the interface design, the following steps are further included:

[0032] Determine the locking time sequence of the first conflict source device, and determine a second time window for time-sharing operation based on the locking time sequence.

[0033] In a second aspect, the present invention provides a radio frequency compatibility device, including:

[0034] A device determination module, configured to perform simulations in an electronic warfare unmanned aerial vehicle system based on a preset electromagnetic field simulation software, an antenna radiation model of each frequency-using device of the unmanned aerial vehicle, and the airframe shape, and determine conflict source devices among the frequency-using devices by using the spatial isolation degree and signal strength obtained from the simulations; wherein, the conflict source device is a device whose transmission frequency band and reception frequency band among the frequency-using devices satisfy a preset frequency band similarity condition; the preset frequency band similarity condition is a condition indicating that there is an overlapping frequency band between the transmission frequency band and the reception frequency band;

[0035] An information analysis module, configured to analyze the time domain characteristics and frequency domain characteristics of the conflict source device to obtain an analysis result;

[0036] A device management module, configured to determine the interface design of the conflict source device by using the analysis result, and formulate a radio frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy.

[0037] In a third aspect, the present invention provides an electronic device, including:

[0038] A memory, configured to store a computer program;

[0039] A processor, configured to execute the computer program to implement the foregoing radio frequency compatibility method.

[0040] In a fourth aspect, the present invention provides a computer-readable storage medium, configured to store a computer program; wherein, when the computer program is executed by a processor, the foregoing radio frequency compatibility method is implemented.

[0041] In the present invention, in an electronic warfare unmanned aerial vehicle (UAV) system, simulations are carried out based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the UAV, and the airframe shape, and conflict source devices in each of the frequency-using devices are determined by using the spatial isolation and signal strength obtained from the simulations; wherein, the conflict source devices are devices in which the transmission frequency band and the reception frequency band between each frequency-using device satisfy a preset frequency band similarity condition; the preset frequency band similarity condition is a condition characterizing that there is an overlapping frequency band between the transmission frequency band and the reception frequency band; the time-domain characteristics and frequency-domain characteristics of the conflict source devices are analyzed to obtain an analysis result; the interface design of the conflict source devices is determined by using the analysis result, and a radio frequency management strategy is formulated based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source devices based on the radio frequency management strategy. As can be seen from the above, in the electronic warfare UAV system of the present invention, first, with the help of a preset electromagnetic field simulation software, simulations are carried out in combination with the antenna radiation models of each frequency-using device of the UAV and the airframe shape. Through the spatial isolation and signal strength obtained from this simulation, the conflict source devices in each frequency-using device are found. And, the conflict source devices refer to devices in which there is an overlapping frequency band between the transmission frequency band and the reception frequency band among each frequency-using device. Then, the time-domain characteristics and frequency-domain characteristics of the conflict source devices are analyzed to obtain an analysis result. Finally, the interface design of the conflict source devices is determined according to this analysis result. And, according to the current combat scenario and this interface design, a radio frequency management strategy is formulated. With this radio frequency management strategy, corresponding radio frequency compatibility management is implemented on the conflict source devices. In this way, the present invention can improve the radio frequency compatibility of the frequency-using devices in the electronic warfare UAV system and, to a certain extent, enhance the user experience. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0043] Figure 1 Flowchart of a radio frequency compatibility method disclosed by the present invention;

[0044] Figure 2 Structure diagram of a radio frequency compatibility device disclosed by the present invention;

[0045] Figure 3 Structure diagram of an electronic device disclosed by the present invention. Detailed Embodiments

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] When an electronic warfare device is installed on a drone, its electromagnetic compatibility conditions become more severe. The addition of the electronic warfare device further increases the complexity of electromagnetic signals and interference sources, making the already tense radio frequency resources more crowded and making it extremely difficult to use radio frequencies compatibly among various devices. When existing radio frequency compatibility technologies are applied to such a special electromagnetic environment of drones, it is difficult to effectively coordinate the frequency usage among numerous devices, resulting in a decline in device performance and seriously affecting the efficiency and reliability of drones in performing tasks. Therefore, the present invention provides a radio frequency compatibility method, device, equipment, and storage medium, which can improve the radio frequency compatibility of frequency-using devices in an electronic warfare drone system.

[0048] As shown in Figure 1 the embodiments of the present invention disclose a radio frequency compatibility method, including:

[0049] Step S11: In an electronic warfare drone system, perform simulations based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the drone, and the airframe shape, and determine the conflict source devices among the frequency-using devices by using the spatial isolation degree and signal intensity obtained from the simulations; wherein, the conflict source devices are devices whose transmission frequency bands and reception frequency bands among the frequency-using devices meet a preset frequency band similarity condition.

[0050] In this embodiment, it should be clear first that various frequency-using devices are included in the electronic warfare drone system. Conventional reconnaissance and strike integrated drones are equipped with devices such as radars, air traffic control transponders, and communication data links, and these devices all achieve their functions by receiving and transmitting electromagnetic waves of specific frequencies. Therefore, these devices can be called frequency-using devices, and these frequency-using devices cover almost all frequency bands from VHF (i.e., Very High Frequency) to KU (i.e., K-under band).

[0051] Further, it is necessary to input each frequency-using device and the airframe shape in the antenna radiation model of the UAV into a preset electromagnetic field simulation software for electromagnetic simulation. Among them, the preset electromagnetic field simulation software can accurately solve electromagnetic field problems, provide detailed electromagnetic field distribution maps and performance parameters; the antenna radiation model details the radiation characteristics of the antennas of each frequency-using device, including parameters such as radiation patterns and gains; the airframe shape takes into account the influence of the UAV's structure on the propagation of electromagnetic waves, such as reflection and scattering.

[0052] After inputting this information into the software, start the electromagnetic simulation. During the simulation, the interaction of electromagnetic waves generated by each frequency-using device during operation and the spatial isolation will be simulated. Specifically, the software will calculate information such as the intensity, direction, and frequency of the electromagnetic waves emitted by each device according to the antenna radiation model, and consider the effects of the airframe shape on the reflection, refraction, and scattering of electromagnetic waves. Also, it is necessary to determine the signal strength of the electromagnetic wave emitting device radiated to the electromagnetic wave receiving device.

[0053] After obtaining the signal strength, determine the conflict source device from each frequency-using device based on the signal strength and the results of the electromagnetic simulation. The determination basis of the conflict source device is that the transmission frequency band and the reception frequency band between each frequency-using device meet the preset frequency band similarity condition, and meet the condition that the signal interference degree between the frequency-using devices is large enough to cause a decrease or failure in the device performance. It should be noted that the frequency band similarity in the preset frequency band similarity condition specifically refers to the existence of frequency band overlap between the transmission frequency band and the reception frequency band. That is to say, for the determination of the conflict source device, if the frequency band emitted by one device is close to the frequency band received by another device, and the signal interference generated between them has seriously affected the normal performance of at least one of the devices, causing a decrease or even failure in performance, then these two devices are considered conflict source devices. Specifically, when the frequency band emitted by one device is close to the frequency band received by another device, electromagnetic interference may occur. By calculating the signal strength of the transmitting device radiated to the receiving device, the severity of this interference can be judged. If the signal strength exceeds the anti-interference ability of the receiving device, then these two devices are very likely to be conflict source devices. Among them, the transmitting device is called the interference source, and the receiving device is called the sensitive source.

[0054] Step S12: Analyze the time-domain characteristics and frequency-domain characteristics of the conflict source device to obtain an analysis result.

[0055] In this embodiment, after determining the conflict source devices of each frequency-using device in the electronic warfare UAV system, it is necessary to analyze the time-domain characteristics and frequency-domain characteristics of the conflict source devices. As shown in Table 1, different conflict source devices have their own unique characteristics. For example, the frequency-domain characteristic of radar signals is that the frequency points are not fixed and the instantaneous working frequency band is variable; in the time domain, it appears in the form of pulses. The air traffic control transponder device presents the characteristic of a fixed working frequency band in the frequency domain and is also in the form of pulses in the time domain. The data link has a variable instantaneous working frequency band, but the change is not frequent, the bandwidth is narrow, and it is a continuous wave in the time domain. Electronic warfare has non-fixed frequency points in the frequency domain, a variable instantaneous working bandwidth, and is a pulse signal in the time domain.

[0056] Table 1

[0057]

[0058] By analyzing the spatial isolation degree, time-domain characteristics, and frequency-domain characteristics of these conflict source devices in detail, comprehensive analysis results can be obtained. These results will provide important basic data for subsequent interface design and radio frequency management strategy formulation.

[0059] Step S13: Use the analysis results to determine the interface design of the conflict source devices, and formulate a radio frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source devices based on the radio frequency management strategy.

[0060] For the analysis results obtained in step S12, in a specific embodiment, when the analysis results show that the time domain of the conflict source device is a pulse signal and the frequency change rate in the frequency domain is greater than a preset rate threshold, a first latching timing interface and a first compatibility parameter interface are configured for the conflict source device.

[0061] Specifically, the first latching timing interface is used to transmit the first amplitude of the level signal to indicate whether the conflict source device is radiating electromagnetic waves through the first amplitude. Through this interface, the system can understand the radiation state of the device in real time. When the device is in the radiation state, the level signal presents a specific amplitude value, and vice versa. In this way, other devices can judge whether they need to take corresponding measures to avoid interference based on this signal. And the first compatibility parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the instantaneous operation of the conflict source device. Since the instantaneous working frequency band of this type of conflict source device changes relatively fast, it is crucial to accurately obtain its instantaneous working radio frequency bandwidth and band information through this interface for other devices to adjust their own working states and avoid radio frequency conflicts with this device. Through this interface, the system can dynamically master the working frequency band range of the device, thus providing accurate data support for subsequent radio frequency management.

[0062] In a specific embodiment, when the analysis result indicates that the time domain of the conflict source device is a pulse signal and the instantaneous operating frequency band is fixed and unchanged, a second latching timing interface is configured for the conflict source device.

[0063] Specifically, the second latching timing interface is used to transmit the second amplitude of the level signal, so as to indicate whether the conflict source device radiates electromagnetic waves in the fixed frequency band through the second amplitude. Since the operating frequency band of such conflict source devices is relatively stable, through the second latching timing interface, the system can simply and effectively determine whether the device radiates in the fixed frequency band. When the level signal indicates that the device radiates in the fixed frequency band, other devices can adjust their own operating states according to this information to avoid conflicts with the radio frequency signals of this device.

[0064] In another specific embodiment, when the analysis result indicates that the time domain of the conflict source device is a continuous wave signal and the instantaneous operating frequency band is variable but does not change frequently, a second compatibility parameter interface is configured for the conflict source device.

[0065] Specifically, the second compatibility parameter interface is an interface for transmitting the instantaneous operating radio frequency bandwidth and radio frequency band of the conflict source device when the conflict source device switches the radio frequency band. Through this interface, the system can timely understand the frequency band switching situation of the conflict source device, so as to adjust the operating states of other devices and ensure the radio frequency compatibility of the entire system.

[0066] After completing the interface design of the conflict source device, determine the task priority of the conflict source device based on the current combat scenario. It can be understood that different combat scenarios have different requirements for each conflict source device, so it is necessary to determine the priority of the device according to the characteristics of the combat scenario. For example, in the pre-war reconnaissance stage, electronic reconnaissance and countermeasure devices may have a higher priority because they can provide important intelligence information for combat, while in the attack stage, the relevant devices of radar and weapon systems may have a higher priority to ensure accurate target strikes.

[0067] Furthermore, formulate corresponding radio frequency management strategies for the conflict source device by using the interface design and task priority of the conflict source device, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy.

[0068] Specifically, in the current combat scenario, determine the conflict source device that meets the preset task high-priority condition as the first conflict source device based on the combat scenario, and determine the conflict source device that meets the preset task low-priority condition as the second conflict source device based on the combat scenario. Furthermore, monitor the instantaneous operating frequency band of the second conflict source device and obtain the monitoring result.

[0069] If the monitoring result shows that the instantaneous operating frequency band of the second conflict source device meets the preset fixed frequency band condition, then according to the timing characteristics of the first conflict source device, a first time window for time-sharing operation is formulated, and the first conflict source device and the second conflict source device operate in a time-sharing manner according to the first time window to determine the first radio frequency management strategy.

[0070] If the monitoring result shows that the instantaneous operating frequency band of the second conflict source device meets the preset variable frequency band condition, then based on the interface design, the instantaneous operating radio frequency bandwidth and radio frequency band of the first conflict source device are sent to the second conflict source device, so that the instantaneous operating frequency band of the second conflict source device is changed to an instantaneous operating frequency band outside the instantaneous operating frequency band range of the first conflict source device to determine the second radio frequency management strategy.

[0071] It should be noted that in this case, the signal emitted by the second conflict source device is likely to interfere with the normal operation of the first conflict source device. By prohibiting the second conflict source device from radiating electromagnetic waves within the instantaneous operating frequency band of the first conflict source device and changing to other frequency bands to radiate electromagnetic waves, it is possible to effectively avoid the radio frequency interference caused by the signal radiated by the second conflict source to the first conflict source device within this section, ensuring that the first conflict source device can accurately obtain the required target signal information. For example, when an electronic jamming device jams a target in a certain frequency band, it is prohibited for devices such as radars that may cause interference to transmit signals in this section, so as to ensure that the detection of the electronic jamming device can capture the information of the target radar in this section in real time, dynamically adjust the jamming strategy, and efficiently complete the electronic jamming task. The radar operates in other frequency bands, ensuring its own normal operation. At the same time, the detection of the electronic jamming device is a wide frequency band, and notch filtering is performed on the instantaneous transmission frequency band of the radar, which can effectively avoid the interference caused by the radar radiation to the detection of the electronic jamming device and the appearance of false radar target signals in the detection. At the same time, it also ensures the normal detection work of the radar.

[0072] Determine an electromagnetic wave receiving device and an electromagnetic wave transmitting device in the conflict source device. If the instantaneous operating frequency band of the electromagnetic wave receiving device meets the preset wide frequency band condition, then the electromagnetic wave receiving device performs notch filtering on the instantaneous operating frequency band of the electromagnetic wave transmitting device to determine the third radio frequency management strategy.

[0073] In addition, during the process of sending the instantaneous operating radio frequency bandwidth and radio frequency band of the first conflict source device to the second conflict source device based on the interface design, the locking timing of the first conflict source device is sent to the second conflict source device, so that the second conflict source device determines a second time window based on the locking timing to perform corresponding preset notch filtering operations. Specifically, the locking timing reflects the radiation time law of the first conflict source device. According to this timing information, the second conflict source device can perform notch filtering on the corresponding frequency band within a specific time period to avoid interference when the first conflict source device radiates signals.

[0074] Finally, corresponding radio frequency compatibility management is performed on the conflict source device based on the first radio frequency management strategy, the second radio frequency management strategy, and the third radio frequency management strategy.

[0075] As can be seen from the above, in the electronic warfare unmanned aerial vehicle system of the present invention, first, with the help of a preset electromagnetic field simulation software, simulation work is carried out in combination with the antenna radiation model of each frequency-using device of the unmanned aerial vehicle and the body shape. The spatial isolation and signal strength obtained through this simulation are used to find the conflict source devices among the frequency-using devices. Here, the conflict source devices refer to those devices among the frequency-using devices whose transmitting frequency band and receiving frequency band meet the preset frequency band similarity conditions. Then, the time domain characteristics and frequency domain characteristics of the conflict source devices are analyzed to obtain the analysis results. Finally, based on this analysis result, the interface design of the conflict source device is determined. And, according to the current combat scenario and this interface design, a radio frequency management strategy is formulated. With this radio frequency management strategy, corresponding radio frequency compatibility management is implemented on the conflict source device. In this way, the present invention can improve the radio frequency compatibility of the frequency-using devices in the electronic warfare unmanned aerial vehicle system and to a certain extent enhance the user experience.

[0076] Next, in combination with specific application scenarios, the technical solutions of the embodiments of the present invention will be specifically described.

[0077] Specifically, during the electromagnetic simulation process, the antenna radiation model of the whole-aircraft antenna and the body shape are input into the HFSS software (an electromagnetic field simulation software) for electromagnetic simulation to determine the conflict source devices, and the spatial isolation of the conflict source devices and the signal strength of the signal radiated by the interference source to the sensitive source device are obtained.

[0078] Next, analyze the electromagnetic time-frequency domain characteristics of the conflict source devices. For conflict source devices with pulsed signals and fast frequency domain changes, such as radars, electronic reconnaissance and countermeasure devices, and self-defense protection devices, a first latching timing interface and a first compatibility parameter interface need to be designed. The first latching timing interface is an interface for transmitting high and low levels to indicate whether the device is radiating, and the first compatibility parameter interface is an interface for transmitting the radiation center frequency band and radiation radio frequency bandwidth of the device, representing the radio frequency parameters of the device's radiation.

[0079] For conflict source devices with pulsed signals but fixed instantaneous operating frequency bands, such as air traffic control transponder devices, only a second latching timing interface needs to be designed, and this interface is used to transmit high and low levels to indicate whether the device is radiating in a fixed frequency band at this time. Finally, for conflict source devices with continuous wave signals and variable but infrequently changing instantaneous operating frequency bands, such as data links, these devices start to radiate when they start working, but will switch to different radiation frequency bands when switching modes. A second compatibility parameter interface needs to be designed, and this interface can transmit the actual working radio frequency parameters of the device's radiation.

[0080] When there are two frequency - using conflict devices A and B (i.e., conflict source devices), it is necessary to determine their task priorities. If in a certain combat scenario, the priority of A (i.e., the first conflict source device) is higher than that of B (i.e., the second conflict source device), then the latching timing interface and radio - frequency compatibility interface should be designed according to the respective characteristics of A and B.

[0081] In the process of comprehensive radio - frequency management, if it is judged that the instantaneous working frequency band of the B receiving end is fixed, a prompt message will be sent to the operator: "Device B and device A work in a time - sharing manner within a certain time window". If the instantaneous working frequency band of the A receiving end is variable, then the compatibility parameters of A will be sent to B. After receiving them, B will switch to work in other frequency bands, and the receiving end of A will perform notch filtering on the instantaneous working frequency band of B. Due to a certain spatial isolation degree, after antenna coupling, the signal power reaching the receiver of the A receiving end becomes smaller and is lower than the receiver detection level. Therefore, this radio - frequency management strategy can effectively solve the radio - frequency conflict problem between A and B.

[0082] Correspondingly, as shown in Figure 2 the embodiment of the present invention provides a radio - frequency compatibility device, including:

[0083] A device determination module 11, which is used to perform simulations in an electronic warfare unmanned aerial vehicle system based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency - using device of the unmanned aerial vehicle, and the airframe shape, and determine the conflict source devices among the frequency - using devices by using the spatial isolation degree and signal strength obtained from the simulations; where the conflict source devices are devices whose transmitting frequency bands and receiving frequency bands among the frequency - using devices meet a preset frequency - band similarity condition; the preset frequency - band similarity condition is a condition indicating that there is an overlapping frequency band between the transmitting frequency band and the receiving frequency band;

[0084] An information analysis module 12, which is used to analyze the time - domain characteristics and frequency - domain characteristics of the conflict source devices to obtain an analysis result;

[0085] A device management module 13, which is used to determine the interface design of the conflict source devices by using the analysis result, and formulate a radio - frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio - frequency compatibility management on the conflict source devices based on the radio - frequency management strategy.

[0086] As can be seen from the above, in the electronic warfare UAV system of the present invention, simulation is carried out by means of a preset electromagnetic field simulation software, the antenna radiation model of the UAV, and the body shape. According to the simulation results and the signal intensity during the simulation, the conflict source devices in each frequency-using device are determined. Then, the spatial isolation of the conflict source devices is determined, and their electromagnetic time-domain and frequency-domain characteristics are analyzed to obtain the analysis results. Finally, according to the analysis results, the interfaces of the conflict source devices are designed, and a radio frequency management strategy is formulated in combination with the interface design, spatial isolation, and the current combat scenario. Through this strategy, radio frequency compatibility management of the conflict source devices is carried out. In this way, the present invention can improve the radio frequency compatibility of the frequency-using devices in the electronic warfare UAV system and, to a certain extent, enhance the user experience.

[0087] In some specific embodiments, the device determination module 11 specifically includes:

[0088] An electromagnetic simulation unit, configured to input each frequency-using device and the body shape in the antenna radiation model of the UAV into a preset electromagnetic field simulation software for electromagnetic simulation;

[0089] A conflict source device determination unit, configured to determine the spatial isolation and signal intensity of the electromagnetic wave emission device radiated to the electromagnetic wave receiving device during the electromagnetic simulation, so as to determine the conflict source device from each of the frequency-using devices based on the spatial isolation and the signal intensity.

[0090] In some specific embodiments, the device management module 13 specifically includes:

[0091] A first interface configuration unit, configured to, when the analysis result indicates that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain satisfies a first preset frequency band change condition, configure a first locking timing interface and a first compatibility parameter interface for the conflict source device;

[0092] Wherein, the first locking timing interface is used to transmit the first amplitude of the level signal to indicate whether the conflict source device is radiating electromagnetic waves through the first amplitude, and the first compatibility parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device;

[0093] A second interface configuration unit, configured to, when the analysis result indicates that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain is fixed and unchanged, configure a second locking timing interface for the conflict source device;

[0094] Wherein, the second locking timing interface is used to transmit the second amplitude of the level signal to indicate whether the conflict source device is radiating electromagnetic waves in a fixed frequency band through the second amplitude;

[0095] A third interface configuration unit, configured to, when the analysis result indicates that the time domain of the conflict source device is a continuous wave signal and the instantaneous operating frequency band in the frequency domain satisfies a second preset frequency band change condition, configure a second compatible parameter interface for the conflict source device;

[0096] Wherein, the second compatible parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device when the conflict source device switches the radio frequency band.

[0097] In some specific embodiments, the device management module 13 specifically includes:

[0098] A priority determination unit, configured to determine the task priority of the conflict source device based on the current combat scenario;

[0099] A radio frequency management unit, configured to formulate a corresponding radio frequency management strategy for the conflict source device by using the interface design of the conflict source device and the task priority, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy.

[0100] In some specific embodiments, the device management module 13 specifically includes:

[0101] A first device determination unit, configured to, in the current combat scenario, determine a conflict source device that satisfies a preset task high-priority condition as a first conflict source device based on the combat scenario;

[0102] A second device determination unit, configured to determine a conflict source device that satisfies a preset task low-priority condition as a second conflict source device based on the combat scenario;

[0103] A frequency band monitoring unit, configured to monitor the instantaneous operating frequency band of the second conflict source device and obtain a monitoring result;

[0104] A first strategy determination unit, configured to, if the monitoring result indicates that the instantaneous operating frequency band of the second conflict source device remains fixed, determine a first time window for time-sharing operation based on the timing characteristics and the interface design of the first conflict source device, so as to determine a first radio frequency management strategy based on the first time window; the time-sharing operation means that the first conflict source device and the second conflict source device operate in different time periods;

[0105] A second strategy determination unit, configured to, if the monitoring result indicates that the instantaneous operating frequency band of the second conflict source device satisfies a current first preset frequency band change condition, send the instantaneous operating bandwidth and instantaneous operating frequency band of the first conflict source device to the second conflict source device, so that the second conflict source device operates within a frequency band range other than the instantaneous operating frequency band of the first conflict source device, to determine a second radio frequency management strategy;

[0106] A third policy determination unit is configured to determine an electromagnetic wave receiving device and an electromagnetic wave transmitting device among the conflict source devices. If the instantaneous operating frequency band of the electromagnetic wave receiving device meets a preset wideband condition, the electromagnetic wave receiving device performs notch processing on the instantaneous operating frequency band of the electromagnetic wave transmitting device to determine a third radio frequency management policy.

[0107] A device management unit is configured to perform corresponding radio frequency compatibility management on the conflict source devices based on the first radio frequency management policy, the second radio frequency management policy, and the third radio frequency management policy.

[0108] In some specific embodiments, the device management module 13 further specifically includes:

[0109] A window determination unit is configured to determine the locking time sequence of the first conflict source device and determine a second time window for time-division operation based on the locking time sequence.

[0110] Furthermore, an embodiment of the present invention also discloses an electronic device. Figure 3 It is a structural diagram of an electronic device 20 shown according to an exemplary embodiment, and the content in the figure should not be considered as any limitation to the scope of use of the present invention. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input / output interface 25, and a communication bus 26. Among them, the memory 22 is used to store a computer program, and the computer program is loaded and executed by the processor 21 to implement the relevant steps in the radio frequency compatibility method disclosed in any of the foregoing embodiments. In addition, the electronic device 20 in this embodiment may specifically be an electronic computer.

[0111] In this embodiment, the power supply 23 is used to provide operating voltages for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and external devices, and the communication protocol it follows is any communication protocol applicable to the technical solution of the present invention, and no specific limitation is imposed on it here; the input / output interface 25 is used to obtain external input data or output data to the outside, and its specific interface type can be selected according to specific application needs, and no specific limitation is made here.

[0112] In addition, as a carrier for resource storage, the memory 22 may be a read-only memory, a random access memory, a magnetic disk, or an optical disc, etc. The resources stored thereon may include an operating system 221, a computer program 222, etc., and the storage method may be short-term storage or permanent storage.

[0113] Among them, the operating system 221 is used to manage and control each hardware device and computer program 222 on the electronic device 20, and it can be Windows Server, Netware, Unix, Linux, etc. In addition to the computer program that can be used to complete the radio frequency compatibility method executed by the electronic device 20 disclosed in any of the foregoing embodiments, the computer program 222 may further include computer programs that can be used to complete other specific tasks.

[0114] Furthermore, the present invention also discloses a computer-readable storage medium for storing a computer program; wherein, when the computer program is executed by a processor, the radio frequency compatibility method disclosed above is implemented. For the specific steps of this method, reference can be made to the corresponding content disclosed in the foregoing embodiments, and details will not be repeated here.

[0115] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts between the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for related parts.

[0116] Those skilled in the art can further realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed in this document can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been generally described according to their functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0117] The steps of the method or algorithm described in combination with the embodiments disclosed in this document can be directly implemented by hardware, a software module executed by a processor, or a combination of both. The software module can be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, register, hard disk, removable disk, CD-ROM, or any other form of storage medium well-known in the technical field.

[0118] The above has introduced the technical solution provided by the present invention in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A radio frequency compatibility method, characterized in that Including: In an electronic warfare UAV system, simulations are carried out based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the UAV, and the airframe shape, and conflict source devices among the frequency-using devices are determined by using the spatial isolation and signal strength obtained from the simulations; wherein, the conflict source devices are devices whose transmitting frequency bands and receiving frequency bands among the frequency-using devices meet a preset frequency band similarity condition; the preset frequency band similarity condition is a condition indicating that there is an overlapping frequency band between the transmitting frequency band and the receiving frequency band. Analyze the time-domain characteristics and frequency-domain characteristics of the conflict source devices to obtain an analysis result. Use the analysis result to determine the interface design of the conflict source devices, and formulate a radio frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source devices based on the radio frequency management strategy.

2. The RF compatibility method according to claim 1, wherein The step of performing simulations based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the UAV, and the airframe shape, and determining conflict source devices among the frequency-using devices by using the spatial isolation and signal strength obtained from the simulations includes: Input each frequency-using device and the airframe shape in the antenna radiation model of the UAV into the preset electromagnetic field simulation software for electromagnetic simulation. During the electromagnetic simulation process, determine the spatial isolation and signal strength of the electromagnetic wave emitted by the electromagnetic wave transmitting device to the electromagnetic wave receiving device, so as to determine the conflict source devices from each frequency-using device based on the spatial isolation and the signal strength.

3. The RF compatibility method according to claim 1, characterized in that The step of using the analysis result to determine the interface design of the conflict source devices includes: When the analysis result shows that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain meets the first preset frequency band change condition, configure a first locking timing interface and a first compatibility parameter interface for the conflict source device. Wherein, the first locking timing interface is used to transmit the first amplitude of the level signal to indicate whether the conflict source device is radiating electromagnetic waves through the first amplitude, and the first compatibility parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device. When the analysis result shows that the time domain of the conflict source device is a pulse signal and the instantaneous working frequency band in the frequency domain is fixed, configure a second locking timing interface for the conflict source device. Wherein, the second locking timing interface is used to transmit the second amplitude of the level signal to indicate whether the conflict source device is radiating electromagnetic waves in a fixed frequency band through the second amplitude. When the analysis result shows that the time domain of the conflict source device is a continuous wave signal and the instantaneous working frequency band in the frequency domain meets the second preset frequency band change condition, configure a second compatibility parameter interface for the conflict source device. Wherein, the second compatibility parameter interface is an interface for transmitting the radio frequency bandwidth and radio frequency band of the conflict source device when the conflict source device switches the radio frequency band.

4. The radio frequency compatibility method according to any one of claims 1 to 3, characterized in that The step of formulating a radio frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source devices based on the radio frequency management strategy includes: Determine the task priority of the conflict source devices based on the current combat scenario. Formulate corresponding radio frequency management strategies for the conflict source device by using the interface design of the conflict source device and the task priorities, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategies.

5. The RF compatibility method according to claim 4, wherein The step of formulating corresponding radio frequency management strategies for the conflict source device by using the interface design of the conflict source device and the task priorities, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategies, includes: In the current combat scenario, determine the conflict source devices that meet the preset high-priority task conditions as the first conflict source devices based on the combat scenario; Determine the conflict source devices that meet the preset low-priority task conditions as the second conflict source devices based on the combat scenario; Monitor the instantaneous operating frequency band of the second conflict source device and obtain the monitoring result; If the monitoring result indicates that the instantaneous operating frequency band of the second conflict source device remains fixed, determine the first time window for time-division operation based on the timing characteristics and the interface design of the first conflict source device, so as to determine the first radio frequency management strategy based on the first time window; the time-division operation means that the first conflict source device and the second conflict source device operate in different time periods; If the monitoring result indicates that the instantaneous operating frequency band of the second conflict source device meets the current first preset frequency band change condition, send the instantaneous operating bandwidth and the instantaneous operating frequency band of the first conflict source device to the second conflict source device based on the interface design, so that the second conflict source device operates within the frequency band range other than the instantaneous operating frequency band of the first conflict source device to determine the second radio frequency management strategy; Determine the electromagnetic wave receiving device and the electromagnetic wave transmitting device in the conflict source device. If the instantaneous operating frequency band of the electromagnetic wave receiving device meets the preset wideband condition, the electromagnetic wave receiving device performs notch filtering on the instantaneous operating frequency band of the electromagnetic wave transmitting device to determine the third radio frequency management strategy; Perform corresponding radio frequency compatibility management on the conflict source device based on the first radio frequency management strategy, the second radio frequency management strategy, and the third radio frequency management strategy.

6. The RF compatibility method according to claim 5, characterized in that In the process of sending the instantaneous operating bandwidth and the instantaneous operating frequency band of the first conflict source device to the second conflict source device based on the interface design, it further includes: Determine the locking timing of the first conflict source device and determine the second time window for time-division operation based on the locking timing.

7. A radio frequency compatibility device, characterized in that, It includes: A device determination module, which is used to perform simulations in an electronic warfare unmanned aerial vehicle system based on a preset electromagnetic field simulation software, the antenna radiation models of each frequency-using device of the unmanned aerial vehicle, and the airframe shape, and determine the conflict source devices in each of the frequency-using devices by using the spatial isolation degree and signal strength obtained from the simulations; wherein, the conflict source device is a device whose transmission frequency band and reception frequency band between each frequency-using device meet the preset frequency band similarity condition; the preset frequency band similarity condition is a condition indicating that there is an overlapping frequency band between the transmission frequency band and the reception frequency band; An information analysis module, which is used to analyze the time domain characteristics and frequency domain characteristics of the conflict source device to obtain an analysis result; The device management module is used to determine the interface design of the conflict source device by using the analysis result, and formulate a radio frequency management strategy based on the interface design and the current combat scenario, so as to perform corresponding radio frequency compatibility management on the conflict source device based on the radio frequency management strategy.

8. The RF compatibility device according to claim 7, wherein The device determination module includes: The electromagnetic simulation unit is used to input each frequency-using device and the airframe shape in the antenna radiation model of the unmanned aerial vehicle into a preset electromagnetic field simulation software for electromagnetic simulation; The device determination unit is used to determine the spatial isolation degree and signal strength of the electromagnetic wave emitted by the electromagnetic wave transmitting device to the electromagnetic wave receiving device during the electromagnetic simulation process, so as to determine the conflict source device from each of the frequency-using devices based on the spatial isolation degree and the signal strength.

9. An electronic device, characterized in that, It includes: The memory is used to store the computer program; The processor is used to execute the computer program to implement the radio frequency compatibility method according to any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that, It is used to store the computer program; wherein, when the computer program is executed by the processor, the radio frequency compatibility method according to any one of claims 1 to 6 is implemented.

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