Method and device for evaluating effective interference distance

Abstract

The invention relates to the technical field of communication, and provides a method and a device for evaluating an effective interference distance. The method comprises the following steps: constructing a suppression coefficient expression; performing iterative optimization on the suppression distance between the interference equipment and the target unmanned aerial vehicle according to the suppression coefficient expression so as to determine at least one suppression distance meeting requirements as an optional distance; and determining an average value of all selectable distances obtained by iteration as an interference effective distance. The random error of the suppression distance is iteratively reduced based on the suppression coefficient expression, so that the real capability value of the interference effective distance of the interference equipment is truly and accurately evaluated, and the problem that the execution effect is seriously influenced due to the fact that the real capability value of the interference effective distance cannot be obtained and an interference task cannot be implemented according to the designed steps is solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method and device for evaluating an effective interference distance. Background Art

[0002] The effective interference distance refers to the maximum distance at which the target drone can be suppressed by the interference signal under a certain observation environment for drones of different types and with different transmission powers.

[0003] The effective interference distance is mainly related to the interference performance and the communication distance between the target UAV and the remote control, as well as the distance between the interference device and the target UAV. Among them, the interference performance generally refers to the transmission power and antenna gain of the interference device. Generally, the greater the transmission power of the interference signal emitted by the interference device, the higher the antenna gain, and the longer the communication distance between the target UAV and the remote control, the longer the interference distance. At the same time, the communication distance between the target UAV and the remote control is different for different interference tasks and different target UAVs to be interfered with.

[0004] At present, manufacturers will provide the effective interference distance of the jamming equipment, which reflects the effect of the jamming equipment under the most ideal environment. However, the effective interference distance provided by the manufacturer cannot reflect the actual capability value of the effective interference distance. And the prior art only involves the solution of processing the signal of the jamming equipment itself, but does not involve the actual evaluation and measurement of the effective interference distance of the jamming equipment. When designing and executing the jamming task, since it is impossible to truly and accurately evaluate the actual capability value of the effective interference distance, the jamming task cannot be implemented according to the designed steps, which seriously affects the execution effect of the jamming task.

[0005] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an evaluation method and device for the effective interference distance, the purpose of which is to iteratively optimize the suppression distance between the interference equipment and the target UAV based on the suppression coefficient expression, so as to determine at least one suppression distance that meets the requirements as the optional distance, and determine the average value of all the optional distances obtained by iteration as the effective interference distance; through a cyclic iteration method, the random error of the suppression distance is gradually reduced according to the suppression coefficient expression, so as to truly and accurately evaluate the true capability value of the effective interference distance of the interference equipment, thereby solving the problem that the interference task cannot be implemented according to the designed steps due to the inability to obtain the true capability value of the effective interference distance, which seriously affects the execution effect.

[0007] The present invention adopts the following technical solution:

[0008] In a first aspect, the present invention provides a method for evaluating an interference effective distance, comprising:

[0009] Construct the suppression coefficient expression;

[0010] According to the suppression coefficient expression, iteratively optimize the suppression distance between the jammer and the target UAV to determine at least one suppression distance that meets the requirements as an optional distance;

[0011] The average value of all optional distances obtained through iteration is determined as the interference effective distance.

[0012] Furthermore, when the communication suppression method is adopted, the construction of the suppression coefficient expression includes:

[0013] Based on the communication interference signal power of the interference device, the communication jammer antenna gain of the interference device, the first suppression distance between the interference device and the target UAV, the radio station transmission power of the target UAV, the radio station antenna gain of the target UAV and the first communication distance between the target UAV and the remote control corresponding to the interference device, the maximum distance at which the interference device can suppress the target UAV is determined to obtain the corresponding communication suppression coefficient expression.

[0014] Furthermore, when the communication suppression method is adopted, the expression of the communication suppression coefficient is:

[0015]

[0016] Among them, K1 represents the actual communication suppression coefficient, P j represents the communication interference signal power, G j represents the communication jammer antenna gain, R j represents the first pressing distance, P t Indicates the transmission power of the station, G t represents the radio station antenna gain, R c represents the first communication distance, and L represents the total loss of signal power during the transmission process of the communication signal.

[0017] Further, when the communication suppression method is adopted, the suppression distance between the jammer and the target UAV is iteratively optimized according to the suppression coefficient expression to determine at least one suppression distance that meets the requirements as an optional distance, including:

[0018] According to the communication suppression coefficient expression, determining the actual communication suppression coefficient;

[0019] When the actual communication suppression coefficient is equal to the reference communication suppression coefficient of the jammer, the first suppression distance of the current iteration is determined as the optional distance obtained in the current iteration;

[0020] When the actual communication suppression coefficient is not equal to the reference communication suppression coefficient, adjusting the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration; adjusting the first communication distance of the current iteration to obtain the first communication distance of the next iteration; determining the total loss of the next iteration;

[0021] Determine the actual communication suppression coefficient of the next round of iteration according to the communication suppression coefficient expression, the first suppression distance of the next round of iteration, the first communication distance of the next round of iteration and the total loss of the next round of iteration; again judge whether the actual communication suppression coefficient of the next round of iteration is equal to the communication reference suppression coefficient until the number of iterations reaches a threshold and stops the iteration.

[0022] Further, when the actual communication suppression coefficient is not equal to the reference communication suppression coefficient, adjusting the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration; adjusting the first communication distance of the current iteration to obtain the first communication distance of the next iteration; and determining the total loss of the next iteration includes:

[0023] Subtract the first preset step length from the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration;

[0024] Determine the sum of the first communication distance of the current iteration and the second preset step length as the first communication distance of the next iteration;

[0025] The total loss of the next iteration is randomly selected within the preset value range.

[0026] Furthermore, when GPS suppression is adopted, the corresponding GPS suppression coefficient expression is:

[0027]

[0028] Among them, K2 represents the actual suppression coefficient of GPS, P j ' represents the GPS interference signal power of the interference device, G j ' represents the GPS jammer antenna gain of the jammer, G rj It represents the antenna gain of the GPS receiver in the direction of the interference signal, R′ t represents the second communication distance between the GPS satellite and the GPS receiver, P t ' represents the navigation signal transmission power of the GPS satellite, G t ' represents the antenna gain of the GPS satellite in the direction of the GPS receiver, G rs represents the gain of the GPS receiver in the direction of the GPS satellite, R′ jrepresents the second suppression distance between the GPS receiver and the jammer, L' represents the system loss of the GPS signal during transmission, G k Represents the gain parameter.

[0029] Further, when the GPS suppression method is adopted, the suppression distance between the jammer and the target UAV is iteratively optimized according to the suppression coefficient expression to determine at least one suppression distance that meets the requirements as an optional distance, including:

[0030] According to the GPS suppression coefficient expression, determining the GPS actual suppression coefficient;

[0031] When the actual suppression coefficient of the GPS is equal to the reference suppression coefficient of the GPS interference device, the second suppression distance of the current iteration is determined as the optional distance obtained in the current iteration;

[0032] When the GPS actual suppression coefficient is not equal to the GPS reference suppression coefficient, the second suppression distance of the current iteration is subtracted from the third preset step length to obtain the second suppression distance of the next iteration; the system loss of the next iteration is randomly selected within the preset value range;

[0033] According to the GPS suppression coefficient expression, the second suppression distance of the next round of iteration and the system loss of the next round of iteration, the GPS actual suppression coefficient of the next round of iteration is determined; and it is judged again whether the GPS actual suppression coefficient of the next round of iteration is equal to the GPS reference suppression coefficient until the number of iterations reaches a threshold and the iteration is stopped.

[0034] Furthermore, it also includes:

[0035] Initialize the suppression distance between the jammer and the target UAV; wherein the suppression distance has a value range of 6.5 km to 8 km;

[0036] Initialize the communication distance between the target UAV and the remote controller; wherein the communication distance ranges from 0.3 km to 1.5 km;

[0037] The total loss is randomly selected within a preset value range to obtain an optional distance for the first round of iteration based on the initialized suppression distance, the initialized communication distance, the randomly selected total loss, and the suppression coefficient expression; wherein the preset value range is: 15 decibels to 17 decibels.

[0038] In a second aspect, the present invention further provides an interference effective distance evaluation device, comprising:

[0039] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to execute the interference effective distance evaluation method described in the first aspect.

[0040] In a third aspect, the present invention further provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, which are executed by one or more processors to complete the interference effective distance evaluation method described in the first aspect.

[0041] In a fourth aspect, a chip is provided, comprising: a processor and an interface, for calling and running a computer program stored in a memory to execute the interference effective distance evaluation method as in the first aspect.

[0042] In a fifth aspect, a computer program product comprising instructions is provided. When the instructions are executed on a computer or a processor, the computer or the processor executes the method for evaluating the effective interference distance as described in the first to fourth aspects and any one of the aspects.

[0043] In a sixth aspect, the present invention further provides an interference effective distance evaluation system, comprising an interference effective distance evaluation device as in the second aspect, and using the interference effective distance evaluation method as described in the first aspect to complete the interaction of the interference effective distance evaluation device of the second aspect.

[0044] Different from the prior art, the present invention has at least the following beneficial effects:

[0045] The invention iteratively optimizes the suppression distance between the jamming device and the target UAV based on the suppression coefficient expression, so as to determine the suppression distance that meets the requirements as the optional distance, and determines the average value of all the optional distances obtained by iteration as the effective interference distance; the random error of the suppression distance is gradually reduced by a cyclic iteration, and based on the average value of a large number of optional distances obtained by iteration, the randomness and one-sidedness of the effective interference distance are greatly reduced, thereby achieving the purpose of obtaining the real and accurate effective interference distance of the jamming device, and solving the problem that the jamming task cannot be implemented according to the designed steps due to the inability to determine the real capability value of the effective interference distance, which seriously affects the execution effect of the jamming task. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 It is a flowchart of a method for evaluating an interference effective distance provided by an embodiment of the present invention;

[0048] Figure 2 is a flow chart of step 10 provided in an embodiment of the present invention;

[0049] Figure 3 is a flow chart of step 20 provided in an embodiment of the present invention;

[0050] Figure 4 is a flow chart of step 202a provided by an embodiment of the present invention;

[0051] Figure 5 is another flow chart of step 20 provided in an embodiment of the present invention;

[0052] Figure 6 It is a schematic diagram of the architecture of an interference effective distance evaluation device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0054] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0055] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, it is not limited to that they can be carried in combination by one embodiment or example.

[0056] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0057] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "multiple" is two or more. In addition, for example, the same type of nouns may be described as two independent individuals by adding "A" and "B" at the end. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the same type of individuals for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0058] When describing some embodiments, the expressions "coupling", "coupling" and "connection" and their derivatives may be used. For example, when describing some embodiments, the term "connection" may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term "coupling" may be used to indicate that two or more components are in direct physical or electrical contact. However, the terms "connection" or "coupling" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the contents of the present invention.

[0059] In the description of the present invention, the expression "A and / or B" (where A and B are used to formally represent specific characteristic contents) will be involved, and the corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0060] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0061] Embodiment 1:

[0062] In order to solve the above problems, Figure 1 As shown, an embodiment of the present invention provides a method for evaluating an interference effective distance, including:

[0063] Step 10: Construct the suppression coefficient expression.

[0064] The embodiment of the present invention uses a suppression coefficient to reflect the capability value of the effective interference distance, so as to facilitate the subsequent use of a suppression coefficient expression to measure whether the interference device is capable of performing suppressive interference.

[0065] Step 20: According to the suppression coefficient expression, the suppression distance between the jammer and the target UAV is iteratively optimized to determine at least one suppression distance that meets the requirements as an optional distance.

[0066] The target UAV is the object to be suppressed by the jammer to transmit the jamming signal. The embodiment of the present invention determines the requirements that the suppression distance must meet based on the suppression coefficient expression, and the specific principles will be described below.

[0067] Step 30: Determine the average value of all optional distances obtained through iteration as the interference effective distance.

[0068] The invention iteratively optimizes the suppression distance between the jamming device and the target UAV based on the suppression coefficient expression, so as to determine the suppression distance that meets the requirements as the optional distance, and determines the average value of all the optional distances obtained by iteration as the effective interference distance; the random error of the suppression distance is gradually reduced by a cyclic iteration, and based on the average value of a large number of optional distances obtained by iteration, the randomness and one-sidedness of the effective interference distance are greatly reduced, thereby achieving the purpose of obtaining the real and accurate effective interference distance of the jamming device, and solving the problem that the jamming task cannot be implemented according to the designed steps due to the inability to determine the real capability value of the effective interference distance, which seriously affects the execution effect of the jamming task.

[0069] The evaluation method of the effective interference distance of the embodiment of the present invention is used to evaluate the effective interference distance of a certain type of interference device, mainly for the situation where the interference device needs to perform suppressive interference on the target UAV. The methods of suppressive interference are divided into communication suppression and global positioning system (GPS) suppression. Among them, communication suppression refers to: a large number of clutter interference signals are generated in the target communication device (for example, a remote control) by the interference device, so that the communication receiver (for example, the target UAV) can hardly receive any effective signal within a certain period of time, thereby causing the communication to be completely interrupted or seriously affected. GPS suppression is to transmit a high-power interference signal through the interference device, so that the GPS receiver cannot receive the navigation and positioning signal transmitted by the GPS satellite in a certain area, so as to destroy the normal reception of the GPS signal and make the GPS receiver lose its positioning ability.

[0070] The following first takes communication suppression as an example to specifically describe the method for evaluating the effective interference distance of an embodiment of the present invention. Figure 2 As shown, in order to perform iterative optimization based on the suppression coefficient expression, the relevant parameters involved in the suppression coefficient expression must first be initialized. The evaluation method for the interference effective distance of the embodiment of the present invention also includes:

[0071] Step 101: Initialize the suppression distance between the jammer and the target UAV; wherein the suppression distance has a value range of 6.5 km to 8 km.

[0072] Step 102: Initialize the communication distance between the target UAV and the remote controller; wherein the communication distance ranges from 0.3 km to 1.5 km.

[0073] Step 103: Randomly select the total loss within the preset value range to obtain the optional distance for the first round of iteration based on the initialized suppression distance, the initialized communication distance and the randomly selected total loss, and the suppression coefficient expression; wherein the preset value range is: 15 decibels to 17 decibels.

[0074] The total loss is used to indicate the extent to which the signal strength of the interference signal decreases or the signal quality decreases during the transmission process.

[0075] When the communication suppression method is adopted, the suppression coefficient expression is the communication suppression coefficient expression, and the step 10 includes: based on the communication interference signal power of the interference device, the communication jammer antenna gain of the interference device, the first suppression distance between the interference device and the target UAV, the radio station transmission power of the target UAV, the radio station antenna gain of the target UAV and the first communication distance between the target UAV and the remote control corresponding to the interference device, determine the maximum distance that the interference device can suppress the target UAV to obtain the corresponding communication suppression coefficient expression.

[0076] The antenna gain is used to indicate the degree to which the interference signal is amplified during the transmission process. The size of the antenna gain directly affects the transmission distance and signal quality of the signal. When the communication suppression method is adopted, the expression of the communication suppression coefficient is:

[0077]

[0078] Among them, K1 represents the actual communication suppression coefficient, P j represents the communication interference signal power, G j represents the communication jammer antenna gain, R j represents the first pressing distance, P t Indicates the transmission power of the station, G t represents the radio station antenna gain, R c represents the first communication distance, and L represents the total loss of signal power during the transmission process of the communication signal.

[0079] The following is an explanation of the iterative optimization process. Figure 3 As shown, when the communication suppression method is adopted, the step 20 includes:

[0080] Step 201a: Determine the actual communication suppression coefficient according to the communication suppression coefficient expression.

[0081] In the first round of iteration, the initialization first suppression distance, the initialization first communication distance and the initialization total loss are used to calculate the actual communication suppression coefficient according to the communication suppression coefficient expression; the subsequent iteration process is similar.

[0082] Step 202a: When the actual communication suppression coefficient is equal to the communication reference suppression coefficient of the interference device, the first suppression distance of this round of iteration is determined as the optional distance obtained in this round of iteration.

[0083] Step 203a: When the actual communication suppression coefficient is not equal to the communication reference suppression coefficient, adjust the first suppression distance of this iteration to obtain the first suppression distance of the next iteration; adjust the first communication distance of this iteration to obtain the first communication distance of the next iteration; determine the total loss of the next iteration.

[0084] If the actual communication suppression coefficient calculated in this round of iteration is not equal to the communication reference suppression coefficient, the first suppression distance, the first communication distance and the total loss are adjusted.

[0085] Step 204a: Determine the actual communication suppression coefficient of the next round of iteration according to the communication suppression coefficient expression, the first suppression distance of the next round of iteration, the first communication distance of the next round of iteration and the total loss of the next round of iteration; again determine whether the actual communication suppression coefficient of the next round of iteration is equal to the communication reference suppression coefficient, until the number of iterations reaches a threshold, and stop the iteration.

[0086] The threshold is selected by a person skilled in the art according to a specific usage scenario; in an optional embodiment, the threshold value may range from 3,000 times to 30,000 times.

[0087] In one embodiment, the first suppression distance, the first communication distance and the total loss can be adjusted as follows: Figure 4 As shown, step 202a includes:

[0088] Step 2021: Subtract the first preset step length from the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration.

[0089] The first preset step size is selected by those skilled in the art according to a specific usage scenario and is not limited here.

[0090] Step 2022: Determine the sum of the first communication distance of the current iteration and the second preset step length as the first communication distance of the next iteration.

[0091] The second preset step size is selected by those skilled in the art according to a specific usage scenario and is not limited here.

[0092] Step 2023: Randomly select the total loss for the next iteration within a preset value range.

[0093] Among them, the preset value range is selected by technical personnel in this field according to the specific usage scenario; in an optional embodiment, the preset value range can be 3000 times to 30000 times.

[0094] After the iteration is stopped, the average of all optional distances obtained during the iteration process is taken to obtain the interference effective distance.

[0095] Taking GPS suppression as an example, the evaluation method of the interference effective distance of the embodiment of the present invention is further described in detail. In GPS suppression, the GPS satellite is equivalent to the remote control in communication suppression, the GPS receiver is equivalent to the target drone in communication suppression, and the communication distance is the distance between the GPS satellite and the GPS receiver (i.e., the second communication distance hereinafter).

[0096] Similarly, for communication suppression, when suppressing GPS, in order to perform iterative optimization based on the suppression coefficient expression, the relevant parameters involved in the suppression coefficient expression must first be initialized. Initialize the second suppression distance between the GPS receiver and the jammer; regard the second communication distance between the GPS satellite and the GPS receiver as a fixed value and initialize the second communication distance; randomly select the system loss of the GPS signal during transmission within the preset value range. Among them, the value range of the second suppression distance is: 2 kilometers to 5 kilometers.

[0097] When GPS suppression is used, the suppression coefficient expression is the GPS suppression coefficient expression; the corresponding GPS suppression coefficient expression is:

[0098]

[0099] Among them, K2 represents the actual suppression coefficient of GPS, P j ' represents the GPS interference signal power of the interference device, G j ' represents the GPS jammer antenna gain of the jammer, G rj It represents the antenna gain of the GPS receiver in the direction of the interference signal, R′ t represents the second communication distance between the GPS satellite and the GPS receiver, P t ' represents the navigation signal transmission power of the GPS satellite, G t ' represents the antenna gain of the GPS satellite in the direction of the GPS receiver, G rs represents the gain of the GPS receiver in the direction of the GPS satellite, R′ j represents the second suppression distance between the GPS receiver and the jammer, L' represents the system loss of the GPS signal during transmission, G k Represents the gain parameter.

[0100] The following is an explanation of the iterative optimization process. Figure 5 As shown, when the GPS suppression method is adopted, the step 20 includes:

[0101] Step 201b: Determine the actual GPS suppression coefficient according to the GPS suppression coefficient expression.

[0102] In the first round of iteration, the GPS actual suppression coefficient is calculated according to the GPS suppression coefficient expression using the initialized second suppression distance, the initialized second communication distance and the initialized system loss; the subsequent iteration process is similar.

[0103] Step 202b: When the actual GPS suppression coefficient is equal to the GPS reference suppression coefficient of the jammer, the second suppression distance of this round of iteration is determined as the optional distance obtained in this round of iteration.

[0104] Similarly, for communication suppression, during the iterative optimization process of GPS suppression, it is determined whether the actual GPS suppression coefficient obtained in this round of iteration is equal to the GPS reference suppression coefficient; if the actual GPS suppression coefficient is equal to the GPS reference suppression coefficient, the second suppression distance of this round of iteration is determined as one of the optional distances.

[0105] Step 203b: When the GPS actual suppression coefficient is not equal to the GPS reference suppression coefficient, subtract the third preset step length from the second suppression distance of the current iteration to obtain the second suppression distance of the next iteration; randomly select the system loss of the next iteration within the preset value range.

[0106] The third preset step size is selected by those skilled in the art according to specific usage scenarios and is not limited here. If the actual suppression coefficient of GPS is not equal to the reference suppression coefficient of GPS, the second suppression distance and system loss are adjusted.

[0107] Step 204b: Determine the GPS actual suppression coefficient for the next round of iteration according to the GPS suppression coefficient expression, the second suppression distance for the next round of iteration, and the system loss for the next round of iteration; again determine whether the GPS actual suppression coefficient for the next round of iteration is equal to the GPS reference suppression coefficient, until the number of iterations reaches a threshold, and then stop the iteration.

[0108] After the iteration is stopped, the average of all optional distances obtained during the iteration process is taken to obtain the interference effective distance.

[0109] The interference effective distance evaluation method of the embodiment of the present invention is applicable to: testing whether the interference device meets the interference effective distance required by the user in a communication interference scenario or a GPS interference scenario; the present invention uses a suppression coefficient expression to iteratively eliminate the error in evaluating the true capability value of the interference effective distance, and does not need to actually use the interference device to conduct interference experiments, so as to screen out the interference device whose true capability value meets the user's requirements.

[0110] Embodiment 2:

[0111] like Figure 6, which is a schematic diagram of the architecture of an interference effective distance evaluation device according to an embodiment of the present invention. The interference effective distance evaluation device according to this embodiment includes one or more processors 21 and a memory 22. Figure 6 A processor 21 is taken as an example.

[0112] The processor 21 and the memory 22 may be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0113] The memory 22 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs and non-volatile computer executable programs, such as the interference effective distance evaluation method in this embodiment. The processor 21 executes the interference effective distance evaluation method by running the non-volatile software programs and instructions stored in the memory 22.

[0114] The memory 22 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some embodiments, the memory 22 may optionally include a memory remotely arranged relative to the processor 21, and these remote memories may be connected to the processor 21 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0115] The program instructions / modules are stored in the memory 22, and when executed by the one or more processors 21, the interference effective distance evaluation method in the above-mentioned embodiment is executed, for example, each step of the interference effective distance evaluation method in the embodiment of the present invention described above is executed.

[0116] An embodiment of the present invention further provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are executed by one or more processors, such as Figure 6 A processor 21 can enable the above one or more processors to execute the interference effective distance evaluation method in the specific implementation of the present invention, for example, execute the various steps of the interference effective distance evaluation method in the embodiment of the present invention described above; it can also realize Figure 6 The modules and units described above; or executing the interference effective distance evaluation method in the specific implementation manner of the present invention, for example, executing the various steps of the interference effective distance evaluation method of the embodiment of the present invention described above; it can also be realized Figure 6 The various modules and units described.

[0117] It is worth noting that the information interaction, execution process, etc. between the modules and units within the above-mentioned devices and systems are based on the same concept as the processing method embodiment of the present invention. The specific contents can be found in the description of the method embodiment of the present invention and will not be repeated here.

[0118] A person skilled in the art may understand that all or part of the steps in the various methods of the embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for evaluating effective interference distance, characterized in that: include: Construct the suppression coefficient expression; According to the suppression coefficient expression, iteratively optimize the suppression distance between the jammer and the target UAV to determine at least one suppression distance that meets the requirements as an optional distance; The average value of all optional distances obtained through iteration is determined as the interference effective distance.

2. The method for evaluating the effective interference distance according to claim 1, characterized in that: When the communication suppression method is adopted, the expression for constructing the suppression coefficient includes: Based on the communication interference signal power of the interference device, the communication jammer antenna gain of the interference device, the first suppression distance between the interference device and the target UAV, the radio station transmission power of the target UAV, the radio station antenna gain of the target UAV and the first communication distance between the target UAV and the remote control corresponding to the interference device, the maximum distance at which the interference device can suppress the target UAV is determined to obtain the corresponding communication suppression coefficient expression.

3. The method for evaluating the effective interference distance according to claim 2, characterized in that: When the communication suppression method is adopted, the communication suppression coefficient expression is: Among them, K1 represents the actual communication suppression coefficient, P j represents the communication interference signal power, G j represents the communication jammer antenna gain, R j represents the first pressing distance, P t Indicates the transmission power of the station, G t represents the radio station antenna gain, R c represents the first communication distance, and L represents the total loss of signal power during the transmission process of the communication signal.

4. The method for evaluating the effective interference distance according to claim 2, characterized in that: When the communication suppression method is adopted, the iterative optimization of the suppression distance between the jammer and the target UAV according to the suppression coefficient expression to determine at least one suppression distance that meets the requirements as an optional distance includes: According to the communication suppression coefficient expression, determining the actual communication suppression coefficient; When the actual communication suppression coefficient is equal to the reference communication suppression coefficient of the jammer, the first suppression distance of the current iteration is determined as the optional distance obtained in the current iteration; When the actual communication suppression coefficient is not equal to the reference communication suppression coefficient, adjusting the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration; adjusting the first communication distance of the current iteration to obtain the first communication distance of the next iteration; determining the total loss of the next iteration; Determine the actual communication suppression coefficient of the next round of iteration according to the communication suppression coefficient expression, the first suppression distance of the next round of iteration, the first communication distance of the next round of iteration and the total loss of the next round of iteration; again judge whether the actual communication suppression coefficient of the next round of iteration is equal to the communication reference suppression coefficient until the number of iterations reaches a threshold and stops the iteration.

5. The method for evaluating the effective interference distance according to claim 4, characterized in that: When the actual communication suppression coefficient is not equal to the reference communication suppression coefficient, adjusting the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration; Adjusting the first communication distance of this round of iteration to obtain the first communication distance of the next round of iteration; Determining the total loss for the next iteration includes: Subtract the first preset step length from the first suppression distance of the current iteration to obtain the first suppression distance of the next iteration; Determine the sum of the first communication distance of the current iteration and the second preset step length as the first communication distance of the next iteration; The total loss of the next iteration is randomly selected within the preset value range.

6. The method for evaluating the effective interference distance according to claim 1, characterized in that: When GPS suppression is used, the corresponding GPS suppression coefficient expression is: Among them, K2 represents the actual suppression coefficient of GPS, P j ' represents the GPS interference signal power of the interference device, G j ' represents the GPS jammer antenna gain of the jammer, G rj Represents the antenna gain of the GPS receiver in the direction of the interference signal, R' t represents the second communication distance between the GPS satellite and the GPS receiver, P t ' represents the navigation signal transmission power of the GPS satellite, G t ' represents the antenna gain of the GPS satellite in the direction of the GPS receiver, G rs represents the gain of the GPS receiver in the direction of the GPS satellite, R' j represents the second suppression distance between the GPS receiver and the jammer, L' represents the system loss of the GPS signal during transmission, G k Represents the gain parameter.

7. The method for evaluating the effective interference distance according to claim 6, characterized in that: When GPS suppression is adopted, the iterative optimization of the suppression distance between the jammer and the target UAV according to the suppression coefficient expression to determine at least one suppression distance that meets the requirements as an optional distance includes: According to the GPS suppression coefficient expression, determining the GPS actual suppression coefficient; When the actual suppression coefficient of the GPS is equal to the reference suppression coefficient of the GPS interference device, the second suppression distance of the current iteration is determined as the optional distance obtained in the current iteration; When the GPS actual suppression coefficient is not equal to the GPS reference suppression coefficient, the second suppression distance of the current iteration is subtracted from the third preset step length to obtain the second suppression distance of the next iteration; the system loss of the next iteration is randomly selected within the preset value range; According to the GPS suppression coefficient expression, the second suppression distance of the next round of iteration and the system loss of the next round of iteration, the GPS actual suppression coefficient of the next round of iteration is determined; and it is judged again whether the GPS actual suppression coefficient of the next round of iteration is equal to the GPS reference suppression coefficient until the number of iterations reaches a threshold and the iteration is stopped.

8. The method for evaluating the effective interference distance according to any one of claims 1 to 7, characterized in that: Also includes: Initialize the suppression distance between the jammer and the target UAV; wherein the suppression distance has a value range of 6.5 km to 8 km; Initialize the communication distance between the target UAV and the remote controller; wherein the communication distance ranges from 0.3 km to 1.5 km; The total loss is randomly selected within a preset value range to obtain an optional distance for the first round of iteration based on the initialized suppression distance, the initialized communication distance, the randomly selected total loss, and the suppression coefficient expression; wherein the preset value range is: 15 decibels to 17 decibels.

9. An interference effective distance evaluation device, characterized in that: The interference effective distance evaluation device includes at least one processor and a memory, the at least one processor and the memory are connected via a data bus, the memory stores instructions that can be executed by the at least one processor, and the instructions, after being executed by the processor, are used to implement the interference effective distance evaluation method described in any one of claims 1-8.

10. A non-volatile computer storage medium, characterized in that: The computer storage medium stores computer executable instructions, and the computer executable instructions are executed by one or more processors to complete the interference effective distance evaluation method described in any one of claims 1-8.

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