A multi-interference site automatic location method

Abstract

The application discloses a kind of multi-interference site automatic siting method, comprising: obtaining data, delimiting graphical rule task defense area;Determine the ECEF frame coordinate of each vertex of defense zone graph, calculate the coordinates of the 8 points of circumscribed circle of task defense zone graph;Calculate the horizontal angle and pitch angle of each interference site and target center point;Construct the space structure of task defense zone graph, calculate the straight line distance of each interference site and each vertex of space structure;Calculate and analyze the coverage range of directional antenna beam;Calculate and analyze the angle of adjacent interference site to the farthest point;Complete the confirmation of the position of each site of distributed interference, in turn navigate to deployment site and carry out the deployment task of site. Compared with prior art, in the present application, through the distributed 8 site deployment mode, the problem of site automatic siting during distributed site deployment is solved, and according to the site automatic siting and navigation to the task site, the effective countermeasure to the four-element and seven-element anti-jamming unmanned aerial vehicle is formed.

Description

Technical Field

[0001] This invention belongs to the field of drone countermeasures, and in particular, it is a method for automatic site selection for multiple interference sites. Background Technology

[0002] With their strong survivability, high cost-effectiveness, long endurance, and low cost of manufacture and operation, unmanned aerial vehicles (UAVs) possess strong all-domain penetration capabilities, battlefield survivability, and sustained combat capabilities. They are force multipliers, crucial for gaining and maintaining information superiority and achieving battlefield victory, and have gradually evolved from a supporting role to one of the main combat forces. These UAVs have played a significant role in various fields such as air strikes, target reconnaissance and detection, and urban warfare. The enemy finds them difficult to detect and identify, and also lacks effective countermeasures, leading to frequent UAV attacks, reconnaissance, and targeted elimination incidents. All indications suggest that the emergence of UAVs will inevitably make the battlefield environment more complex and severe. With the large-scale deployment and widespread application of UAVs in warfare, counter-UAV operations have become a focal point of the current battlefield.

[0003] In response to the increasingly severe challenges posed by drones, corresponding countermeasures exist, including laser weapon countermeasures, thermal weapon countermeasures, microwave weapon countermeasures, and electronic countermeasures. Laser weapons destroy drone targets by generating directional laser beams, possessing strong resistance to electromagnetic interference and high accuracy, but are susceptible to atmospheric conditions and attenuation. Thermal weapons, such as anti-aircraft missiles, can inflict hard kill damage on drone targets, achieving good destruction results, but are costly and have low accuracy, especially against drone swarms. Microwave weapons destroy drone targets using high-energy microwave pulses, offering a wide kill range, fast reaction speed, low weather sensitivity, and all-weather operation, but are bulky, inconvenient to use, and expensive. Electronic countermeasures employ various methods such as electronic suppression, electronic deception, and communication jamming, offering high efficiency and low cost, but cannot cause hard damage. Comparative analysis shows that compared to laser and thermal weapon technologies, electronic countermeasures offer unparalleled economy, efficiency, and security in actual combat.

[0004] Currently, most UAVs are equipped with four-element or seven-element anti-jamming array antennas, which have strong anti-jamming performance. The impact of traditional anti-UAV electromagnetic interference methods on combat is gradually diminishing. Traditional electromagnetic interference methods can only suppress and interfere from one direction, and the interference methods are single and do not have the ability to perform composite interference. The effective range is small and the interference distance is limited. They cannot interfere with multi-element anti-jamming navigation equipment. The interference power is large and concentrated, which can easily cause "collateral damage" to civilian and friendly equipment. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic site selection method for multiple interference sites. By deploying eight sites in a distributed manner, it can counteract interference-resistant unmanned aerial vehicles (UAVs). It focuses on solving the problem of automatic site selection during distributed site deployment. The method can automatically select sites according to the mission area and navigate to the mission location to complete the deployment of eight sites, thus forming an effective countermeasure against four-element and seven-element anti-interference UAVs.

[0006] This invention discloses an automatic site selection method for multiple interference sites, comprising: an automatic site selection method for multiple interference sites, comprising:

[0007] Step 1: Acquire data and delineate the task defense area according to the graphic rules;

[0008] Step 2: Determine the ECEF frame coordinates of each vertex of the mission defense zone graphic, and then calculate the coordinates of the 8 equal division points of the circumcircle of the mission defense zone graphic.

[0009] Step 3: Calculate the horizontal and vertical angles between each interference station and the target center point;

[0010] Step 4: Construct the spatial structure of the mission defense zone graphic, and calculate the straight-line distance between each interference station in the mission defense zone and each vertex of the spatial structure.

[0011] Step 5: Calculate and analyze the coverage area of ​​the directional antenna beam;

[0012] Step 6: Calculate and analyze the angles between adjacent interfering stations and the farthest point;

[0013] Step 7: Confirm the location of each distributed interference site, and navigate to the deployment location in sequence to carry out the site deployment task.

[0014] Furthermore, the specific steps in step 2 are as follows;

[0015] Step 2.1: Define the ECEF frame coordinates of each vertex of the task defense zone rule graph;

[0016] The definition of each vertex of the regular graph is X. m m= , The number of vertices in the regular shape; the spatial coordinates of each vertex are ( The center point of the regular graph is defined as O, and the spatial coordinates of O are O(x). O y O , z O The geodetic coordinates are O (B) O L O H O );

[0017] Step 2.2: Calculate the radius of the circumcircle of the regular shape of the mission defense zone;

[0018] Delineate the circumcircle of the region of the regular shape, and set points G on the circumcircle arc with an average of 8 equal distributions. n Calculate the spatial coordinates G of each deployment point. ni (X) Gn Y Gn Z Gn ), n= .

[0019] Furthermore, in step 3, G is calculated sequentially. n The horizontal angle between each jamming station and the location of the threat target W and pitch angle ,

[0020] but

[0021] (6)

[0022]

[0023] In the formula, H is the approximate flight altitude of the incoming threat target, and the spatial coordinates of the threat target point W are W(x, y). W y W , z W ), L i For each interference site G n The straight-line distance from the center point O.

[0024] Furthermore, step 4 is detailed below:

[0025] Step 4.1: Construct the spatial structure of the mission defense zone graphic; based on the points X of the mission defense zone rule graphic in Step 2.1. m Then, with height H1=H O +H represents the height, constructing a spatial structure. The vertices of the top surface of the structure are defined as X'. m ;

[0026] Step 4.2: Calculate the straight-line distance L between each interference station and the vertex of the top surface of the mission area. Gn ;

[0027] (7)

[0028] Where (X) Gn Y Gn Z Gn The coordinates of each interfering station are shown below. For each vertex X' on the top surface of the defense zone structure m Spatial coordinates;

[0029] Step 4.3: Calculate and analyze the interference distance; determine the straight-line distance L between each interference station and each vertex of the task area. Gn With respect to the size of the interference radius R,

[0030] If L Gn If the distance is greater than R, then the location of the interfering site is moved X distances towards the center of the circle, and the spatial coordinates of the interfering point are recalculated. If L Gn If the value is less than R, then continue execution.

[0031] Furthermore, step 5 is detailed below:

[0032] Step 5.1: Calculate the coverage area of ​​the directional antenna beam: Calculate the angle between the two nearest vertices of the regular shape of the mission area from each interfering site. ;

[0033] Step 5.2: Analyze the antenna beam coverage area;

[0034] Determine the included angle The size of the directional antenna beam angle of 120°, if If the angle is greater than 120°, the interfering station moves a distance Y outward in the direction of the radius, the spatial coordinates of the interfering station are recalculated, and the process returns to step 4 to recalculate. If the angle is less than 120°, continue execution.

[0035] Furthermore, step 6 is detailed below:

[0036] Step 6.1: Calculate the angle between adjacent interfering stations and the farthest point; to prevent adjacent interfering stations from being identified as the same interference source by the anti-interference receiver, calculate the angle between adjacent interfering stations and the farthest point. ;

[0037] Step 6.2 Analyze the angle between adjacent interfering stations and the farthest point; determine the magnitude of the angle with respect to 20°. If the angle is less than 20°, then the interfering station A moves a distance Z towards the center of the circle along the radial direction, while the position of the interfering station B remains unchanged. If the angle is greater than 20°, continue execution.

[0038] Furthermore, the regular shape of the mission defense zone is a rectangle; the vertices of the rectangle are X... m The vertices X' of the top face of the corresponding spatial structure cuboid are A, B, C, and D. m They are respectively .

[0039] Furthermore, the formula for calculating the circumcircle radius GL of the rectangle is as follows:

[0040] (8)

[0041] In the formula, the spatial coordinates of point A are (x... A y A , z A The spatial coordinates of C are (x C y C , z C )

[0042] The spatial coordinates of each deployment point are as follows: The coordinates of point G1 are (x O -GL, y O , z O The coordinates of point G3 are (x O y O +GL, z O The coordinates of point G5 are (x O +GL, y O , z O The coordinates of point G7 are (x O y O -GL, z O ).

[0043] The coordinates of point G2 are (x O - y O + , z O The coordinates of point G4 are (x O + y O + , z O The coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (x O - y O - , z O ).

[0044] Furthermore, each interference site G n The straight-line distance from the center point O is The calculation is performed using equation (9):

[0045] (9)

[0046] Furthermore, the angle between point G1 and points A and B The calculation formula is:

[0047] (10)

[0048] In the formula, G1A is the distance from point G1 to point A, G1B is the distance from point G1 to point B, and AB is the distance from point A to point B.

[0049] Compared with the prior art, the advantages of this invention are:

[0050] (1) When selecting the location of 8 interference sites, the coordinates of the location to be deployed of the interference sites can be automatically calculated when the task area is selected and the interference radius is determined. The site can be quickly navigated to the deployment location based on the location coordinates to carry out the site deployment. This realizes the automated location selection of multiple interference sites. Compared with the manual location calculation method, it shortens the site deployment time, improves the deployment efficiency of multiple interference sites, and enhances the countermeasure effectiveness against multi-element anti-interference unmanned aerial vehicles.

[0051] (2) For four-element and seven-element anti-jamming UAVs, interference from a single station in one direction cannot affect them. This invention forms a distributed interference situation by automatically deploying multiple interference stations, and can effectively counter the anti-jamming UAVs from multiple directions.

[0052] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0053] Figure 1 This is a flowchart illustrating the automatic site selection method for multiple interfering sites.

[0054] Figure 2 A schematic diagram showing the circumscribed rectangle of the task area deployed across multiple sites, divided into eight equal parts.

[0055] Figure 3 A schematic diagram of the rectangular area layout for multiple sites. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0057] Combination Figure 1 The automatic site selection method for multiple interference sites mainly includes the following steps: task area selection, calculation of the horizontal and vertical angles between each interference site and the center point, calculation of the straight-line distance between each interference site and the vertex of the area, calculation of the coverage range of the directional antenna beam, and determination of the angles between adjacent interference sites and the farthest point. The specific steps are as follows:

[0058] Step 1: Acquire data and delineate the task defense area according to the graphic rules; acquire data such as the task area, interference radius R, and base map, and delineate the corresponding regular graphic based on the task area and the corresponding base map data; if the graphic is irregular due to geographical environment or other factors, it shall be delineated according to the regular graphic, such as delineating the task defense area according to the rectangular area.

[0059] Step 2: Determine the ECEF frame coordinates of each vertex of the mission defense zone graphic, and then calculate the coordinates of the 8 equal division points of the circumcircle of the mission defense zone graphic.

[0060] Step 2.1: Define the ECEF frame coordinates of each vertex of the task defense zone rule graph;

[0061] Specifically, if the designated defense area in step 1 is rectangular, then the vertices of the rectangle are A, B, C, and D. The ECEF frame coordinates (including spatial coordinates and geodetic coordinates) of each vertex are determined beforehand and defined as follows: (x) A y A , z A ), A (B) A L A H A ), B(x B y B , z B ), B (B B L B H B ), C(x) C y C , z C ), C (B C L C H C ) and D(x D y D , z D ), D (B D L D H D The coordinates of the center point O of the rectangle are O(x) O y O , z O ), O (B O L O H O );

[0062] The spatial coordinates of vertex A of the rectangular task area are A(x). A y A , z A ) and geodetic coordinates A (B A L A H AThe coordinate transformation is performed using the coordinate transformation method of equation (11).

[0063] (11)

[0064] Where: N is the radius of the zonal circle. a is the major semi-axis of the Earth's ellipsoid, b is the minor semi-axis of the Earth's ellipsoid, and e is the minor semi-axis. 2 Let be the first radius of curvature (eccentricity) of the ellipsoid.

[0065] Step 2.2, define the circumcircle of the regular shape of the mission defense zone; delineate the circumcircle of this rectangular area, and set points G on the circumcircle arc with an average of 8 points each. n , respectively , , , , , , , There are a total of 8 points. The coordinate space coordinates G of each point are calculated sequentially. ni (X) Gn Y Gn Z Gn ), n= ;

[0066] Let the radius of the circumcircle be GL, and calculate GL using equation (12):

[0067] (12)

[0068] Therefore, the coordinates of point G1 are (x O -GL, y O , z O The coordinates of point G3 are (x O y O +GL, z O The coordinates of point G5 are (x O +GL, y O , z O The coordinates of point G7 are (x O y O -GL, z O ).

[0069] The coordinates of point G2 are (x O - y O + , z O The coordinates of point G4 are (x O + y O + , z OThe coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (x O - y O - , z O ).

[0070] Furthermore, each interference site G n The straight-line distance from the center point O is The calculation is performed using equation (13):

[0071] (13)

[0072] Step 3: Calculate the horizontal and vertical angles between each jamming station and the target center point. Based on the magnitude of the horizontal and vertical angles, preliminarily determine the orientation of the directional jamming antenna towards the target center point.

[0073] The horizontal and pitch angles are calculated based on the approximate flight altitude H of the incoming threat target. The threat target point is defined as W, and its geodetic coordinates when it reaches the center of the mission area are W''. j (B) O L O H O +H), convert to spatial coordinates W(x) W y W , z W ), calculate G in sequence n Location of each jamming site and threat target W (x) W y W , z W ) horizontal angle and pitch angle ;

[0074] Where the horizontal included angle The pitch angle is calculated using equation (14). Calculated by equation (15):

[0075] (14)

[0076] (15)

[0077] Step 4: Construct the spatial structure of the mission defense zone graphic, and calculate the straight-line distance between each interference station and each vertex of the top surface of the spatial structure of the mission defense zone graphic.

[0078] Step 4.1: Construct the spatial structure of the mission defense zone graphic;

[0079] Given a pre-defined rectangular task area with vertices A, B, C, and D, and a height of H1 = H... O +H is a cuboid with height H. The four vertices above the top face of the cuboid are respectively... The geodetic coordinates of each vertex are as follows: (B) A L A H1) (B) B L B H1) (B) C L C H1) (B) D L D H1), converted to spatial coordinates as (x) A' y A' , z A' ), (x) B' y B' , z B' ) (x) C' y C' , z C' )and (x) D' y D' , z D' ),

[0080] Step 4.2: Calculate the straight-line distance L between each interference station and the vertex of the top surface of the mission area. Gn ;

[0081] (16)

[0082] Where (X) Gn Y Gn Z Gn The coordinates of each interfering station are shown below. For each vertex X' in the region = Spatial coordinates.

[0083] Step 4.3: Calculate and analyze the interference distance;

[0084] Determine the straight-line distance L between each interference site and the vertex of the mission area. Gn With respect to the size of the interference radius R,

[0085] (1) If L GnIf the value is greater than R, then the location of the interfering site moves X towards the center of the circle, such as 0.1km. The spatial coordinates of each interfering point are recalculated, and then the process returns to step 4.1 to recalculate.

[0086] And at this time, the corresponding spatial coordinates of the interfering site are: the coordinates of point G1 are (x O -GL+X, y O , z O The coordinates of point G3 are (x O y O +GL-X, z O The coordinates of point G5 are (x O +GL-X, y O , z O The coordinates of point G7 are (x O y O -GL+X, z O The coordinates of point G2 are (x... O - y O + , z O The coordinates of point G4 are (x O + y O + , z O The coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (x O - y O - , z O ).

[0087] (2) If L Gn If the value is less than R, continue execution.

[0088] Step 5: Calculate and analyze the coverage area of ​​the directional antenna beam;

[0089] Step 5.1: The calculation of the directional antenna beam coverage is as follows: Calculate the included angle between the two nearest vertices of the rectangle A, B, C, and D of the target area from each interfering station. ,

[0090] Taking point G1 as an example, calculate the distances from point G1 to points A, B, C and D in sequence, find the two closest points, and determine the maximum coverage area of ​​the directional antenna beam;

[0091] Assuming that the two vertices closest to point G1 are points A and B, then the angle between point G1 and points A and B is... The calculation is performed using equation (17) and the trigonometric cosine theorem:

[0092] (17)

[0093] In the formula, G1A is the distance from point G1 to point A, G1B is the distance from point G1 to point B, and AB is the distance from point A to point B.

[0094] Similarly, calculate the distances from points G2 and G3 to points G8 and then to points A, B, C, and D, find the two closest vertices, and then calculate the angle between each interfering station and its nearest vertex. .

[0095] Step 5.2: Analyze the antenna beam coverage area;

[0096] Determine the included angle The size of the directional antenna beam angle of 120°, if If the angle is greater than 120°, the interfering station moves outward by Y in a direction outside the radius, such as 0.1 km. The corresponding spatial coordinates of the interfering station are then recalculated, and the process returns to step 4 to recalculate. If the angle is less than 120°, continue execution.

[0097] Wherein, after the interfering station moves Y in a direction outward from the radius, the corresponding coordinates of the interfering station are G1, and the coordinates of point G1 are (x... O -GL-Y, y O , z O The coordinates of point G3 are (x O y O +GL+Y, z O The coordinates of point G5 are (x O +GL+Y, y O , z O The coordinates of point G7 are (x O y O -GL-Y, z O The coordinates of point G2 are (x... O - y O + , z O The coordinates of point G4 are (x O + y O + , z O The coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (xO - y O - , z O ).

[0098] Step 6: Calculate and analyze the angles between adjacent interfering stations and the farthest point;

[0099] Step 6.1: Calculate the angle between adjacent interfering stations and the farthest point;

[0100] like Figure 3 As shown, to prevent adjacent interfering stations from being identified as the same interference source by the anti-interference receiver, the angles between adjacent interfering stations and the farthest points from each vertex on the top surface of the space volume are calculated. Starting with the adjacent interfering stations G1 and G2, calculate the angles to points A1, B1, C1, and D1 respectively. Select the angle with the smallest value; the corresponding point is the farthest point, and the corresponding angle is... ;

[0101] Specifically, first calculate the angles between points G1 and G2 and point A1. Then, according to the trigonometric cosine theorem... Calculated using equation (18):

[0102] (18)

[0103] In the formula, Let G1 and G2 be the angles from points G1 and G2 to point A1. Let G1 be the distance from point A1. The distance from point G2 to point A1 This is the distance between points G1 and G2.

[0104] Step 6.2 Analyze the angle between adjacent interfering sites and the farthest point;

[0105] Determine the size of the angle with 20°. If the angle is less than 20°, then the interfering station A moves Z towards the center of the circle along the radial direction, for example, 0.1 km, and the spatial coordinates of the corresponding interfering station are recalculated, while the position of the interfering station B remains unchanged; if If the angle is greater than 20°, continue execution.

[0106] After interfering site A moves Z towards the center of the circle along the radial direction, the corresponding spatial coordinates of the interfering site are: the coordinates of point G1 are (x... O -GL+Z, y O , z O The coordinates of point G3 are (x O y O +GL-Z, z O The coordinates of point G5 are (x O +GL-Z, yO , z O The coordinates of point G7 are (x O y O -GL+Z, z O The coordinates of point G2 are (x... O - y O + , z O The coordinates of point G4 are (x O + y O + , z O The coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (x O - y O - , z O );

[0107] The angles between adjacent interfering stations and each vertex are traversed sequentially.

[0108] Step 7: Confirm the location of each distributed interference site, and navigate to the deployment location in sequence to carry out the site deployment task.

Claims

1. A method for automatic site selection amidst multiple interference sites, characterized in that, include: Step 1: Acquire data and delineate the task defense area according to the graphic rules; Step 2: Determine the ECEF frame coordinates of each vertex of the mission defense zone graphic, and then calculate the coordinates of the 8 equal division points of the circumcircle of the mission defense zone graphic. Step 3: Calculate the horizontal and vertical angles between each interference station and the target center point; Step 4: Construct the spatial structure of the mission defense zone graphic, and calculate the straight-line distance between each interference station in the mission defense zone and each vertex of the spatial structure. Step 5: Calculate and analyze the coverage area of ​​the directional antenna beam; Step 6: Calculate and analyze the angles between adjacent interfering stations and the farthest point; Step 6.1: Calculate the angle between adjacent interfering stations and the farthest point; To prevent adjacent interfering stations from being identified as the same interference source by the anti-interference receiver, the angle between adjacent interfering stations and the farthest point is calculated. ; Step 6.2, analyze the angle between adjacent interfering stations and the farthest point; determine the magnitude of the angle with respect to 20°, if... If the angle is less than 20°, then the interfering station A moves a distance Z towards the center of the circle along the radial direction, while the position of the interfering station B remains unchanged. If the angle is greater than 20°, continue execution. Step 7: Confirm the location of each distributed interference site, and navigate to the deployment location in sequence to carry out the site deployment task.

2. The method according to claim 1, characterized in that, The specific steps in step 2 are as follows: Step 2.1, define the ECEF frame coordinates of each vertex of the regular graph of the mission defense zone; the definition of each vertex of the regular graph is X. m m= , The number of vertices in the regular shape; the spatial coordinates of each vertex are ( The center point of the regular graph is defined as O, and the spatial coordinates of O are O(x). O y O , z O The geodetic coordinates are O (B) O L O H O ); Step 2.2: Calculate the radius of the circumcircle of the regular shape of the mission defense zone; delineate the circumcircle of the regular shape, and set points G on the circumcircle arc with an average of 8 equal distributions. n Calculate the spatial coordinates G of each deployment point. ni (X) Gn Y Gn Z Gn ), n= .

3. The method according to claim 2, characterized in that, In step 3, calculate G sequentially. n The horizontal angle between each jamming station and the location of the threat target W and pitch angle , but ； ； In the formula, H is the approximate flight altitude of the incoming threat target, and the spatial coordinates of the threat target point W are W(x, y). W y W , z W ), L i For each interference site G n The straight-line distance from the center point O.

4. The method according to claim 3, characterized in that, Step 4 is as follows: Step 4.1: Construct the spatial structure of the mission defense zone graphic; based on the points X of the mission defense zone rule graphic in Step 2.

1. m Then, with height H1=H O +H represents the height, constructing a spatial structure. The vertices of the top surface of the structure are defined as X'. m ; Step 4.2: Calculate the straight-line distance L between each interference station and the vertex of the top surface of the mission area. Gn ; ； Where (X) Gn Y Gn Z Gn The coordinates of each interfering station are shown below. For each vertex X' on the top surface of the defense zone structure m Spatial coordinates, L Gn This represents the straight-line distance between each interference station and the top vertex of the mission area; Step 4.3: Calculate and analyze the interference distance; determine the straight-line distance L between each interference station and each vertex of the task area. Gn With respect to the size of the interference radius R, If L Gn If the distance is greater than R, then the location of the interfering site is moved X distances towards the center of the circle, and the spatial coordinates of the interfering site are recalculated. If L Gn If the value is less than R, then continue execution.

5. The method according to claim 2, characterized in that, Step 5 is as follows: Step 5.1, Calculate the coverage area of ​​the directional antenna beam: Calculate the angle between the two nearest vertices of the regular shape of the mission area from each interfering site. ; Step 5.2: Analyze the antenna beam coverage area; Determine the included angle The size of the directional antenna beam angle of 120°, if If the angle is greater than 120°, the interfering station moves a distance Y outward in the direction of the radius, the spatial coordinates of the interfering station are recalculated, and the process returns to step 4 to recalculate. If the angle is less than 120°, continue execution.

6. The method according to any one of claims 1-5, characterized in that, The mission defense zone has a rectangular shape; the vertices of the rectangle are X... m The vertices X' of the top face of the corresponding spatial structure cuboid are A, B, C, and D. m They are respectively .

7. The method according to claim 6, characterized in that, The formula for calculating the circumradius GL of a rectangle is as follows: ； In the formula, the spatial coordinates of point A are (x... A y A , z A The spatial coordinates of C are (x C y C , z C The spatial coordinates of each deployment point are as follows: The coordinates of point G1 are (x O -GL, y O , z O The coordinates of point G3 are (x O y O +GL, z O The coordinates of point G5 are (x O +GL, y O , z O The coordinates of point G7 are (x O y O -GL, z O The coordinates of point G2 are (x O - y O + , z O The coordinates of point G4 are (x O + y O + , z O The coordinates of point G6 are (x O + y O - , z O The coordinates of point G8 are (x O - y O - , z O ); Furthermore, each interference site G n Straight-line distance from the center point O for: 。 8. The method according to claim 6, characterized in that, The angle between point G1 and points A and B The calculation formula is: ； In the formula, G1A is the distance from point G1 to point A, G1B is the distance from point G1 to point B, and AB is the distance from point A to point B.

Images