CN117872288A - Station arrangement method for optical reconnaissance passive interference station in anti-sky - Google Patents
Station arrangement method for optical reconnaissance passive interference station in anti-sky Download PDFInfo
- Publication number
- CN117872288A CN117872288A CN202410037985.9A CN202410037985A CN117872288A CN 117872288 A CN117872288 A CN 117872288A CN 202410037985 A CN202410037985 A CN 202410037985A CN 117872288 A CN117872288 A CN 117872288A
- Authority
- CN
- China
- Prior art keywords
- station
- interference
- satellite
- area
- reconnaissance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000002452 interceptive effect Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 241001424688 Enceliopsis Species 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012804 iterative process Methods 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
Landscapes
- Radio Relay Systems (AREA)
Abstract
The invention relates to the technical field of anti-sky reconnaissance, in particular to a station arrangement method of an anti-sky optical reconnaissance passive interference station, which comprises the steps of after discretizing a station arrangement area, calculating to obtain an optical path of solar rays incident to the interference station and an infeasible station arrangement area with shielding on an optical path of reflected rays of the interference station to a reconnaissance satellite; and finding out the target to be protected with the highest protection level, setting the target to be protected as a priority protection target, traversing the area capable of covering the priority protection targets in the feasible station distribution area, finding out the passive interference station positions capable of covering the maximum number of priority protection targets, outputting the passive interference station positions as the optimal station distribution positions, and iterating according to the mode until all the targets to be protected are covered or all the interference stations have determined station distribution positions. The invention fully considers various constraint conditions, improves the deployment efficiency and success rate of the interference station, and preferentially protects the target with high protection level in the station distribution process, thereby ensuring the safety of important facilities.
Description
Technical Field
The invention relates to the technical field of anti-sky reconnaissance, and particularly provides a station arrangement method for anti-sky optical reconnaissance passive interference stations.
Background
The rapid development of satellite technology and the wide application of the satellite technology in various fields make satellite reconnaissance monitoring a great threat to ground targets, so that anti-satellite reconnaissance is of great importance to the safety protection of key areas. For optical imaging reconnaissance satellites, common countermeasures are imaging interference and laser blinding techniques. The imaging interference technology uses sunlight as an interference light source to overexposure a key area of a satellite in an imaging range of a ground observation camera, and the reconnaissance capability is lost, so that the interference effect is achieved. The laser blinding technology is to destroy the photoelectric sensor or optical system of the satellite by emitting strong laser energy to saturate, thoroughly fail and even directly destroy the satellite, thereby greatly reducing the reconnaissance efficiency of the other satellite. Although the imaging interference technology belongs to soft killing and can only temporarily cause the target camera to be blind, the technology has the advantages of high maneuverability, good convenience, low cost and the like, so that the imaging interference technology has good cost performance and has wide application in the satellite countermeasure field.
As shown in fig. 1, the core logic of soft imaging disturbance is: the planar passive interfering station is utilized such that the plane normal of the passive interfering station is located at a spatially bisected angle of the device pointing to the sun and to the satellite. The passive jamming station reflects sunlight to the satellite field of view as the satellite passes. From the satellite imaging perspective, this corresponds to the direct imaging of the sun by the satellites in the field of view of the target. When a scout camera of the satellite does not point to the current scout area, effective scout information cannot be obtained; when the satellite reconnaissance camera points to the current area, utilizing the overflow effect of the image sensor to perform passive interference; when the satellite utilizes the anti-interference saturation measure, the effective information of satellite reconnaissance is reduced, and effective protection is also achieved. The blooming effect is an effect in which when photons of pixels of a single CCD or CMOS are bloomed, the generated photosensitive charge contaminates imaging of peripheral pixels. The direct effect of pollution saturation is that the target area and the periphery cannot be imaged effectively, so that the effect of information protection of key areas is achieved.
The existing method for countering space reconnaissance passive interference station arrangement aims at important defensive satellites, performs visibility analysis of one orbit period by traversing deployable stations, and selects optimal station deployment and optimal counterguard period to determine a task window. However, the calculation complexity of traversing all the distributed stations is extremely high at present, and particularly when the number of passive interference stations is large, a great deal of time is consumed in the traversal calculation. Different from the common active interference, the passive sunlight is used for protection, and the factors of whether the sunlight is shielded by an object, whether the emergent light of the reflecting mirror is shielded by the object, and the like are included, so that the sunlight cannot enter the field of view of the target satellite. Generally, the target important information protection area is more complex than the common protection environment. For example, the environment of important bases such as oil depots and grain depots needs to comprehensively consider the influence of the topography of a protection area, the high-rise shielding effect of incident rays of the sun, the high-rise shielding of an emergent area, topography fluctuation and the like. In addition, the problem of multi-site cooperation protection needs to be considered, and the factors such as a core protection area, an edge protection area and the like need to be considered for multi-site station distribution.
Disclosure of Invention
The invention provides a station arrangement method for optically reconnaissance of passive interference stations in the sky, which comprehensively considers various constraint conditions during station arrangement, and focuses on reducing the number of traversal points of each passive interference station according to the protection level of each key protection area, so that when the number of the passive interference stations is insufficient, the areas with high protection levels are preferentially covered; and when the number of the passive interference stations is sufficient, the coverage rate of the protection area is improved.
The invention provides a station arrangement method for optically reconnaissance passive interference stations in a reverse sky, which comprises the following steps:
s1: determining an input parameter set, wherein the input parameter set comprises a station distribution area, the coordinate position, the geometric dimension and the protection level of an object to be protected, the number and the action range of interference stations, the azimuth angle and the pitch angle of a scout satellite when the scout satellite passes the border, and the azimuth angle and the pitch angle of the sun;
s2: discretizing the station distribution area;
s3: according to the azimuth angle and the pitch angle of the scout satellite and the azimuth angle and the pitch angle of the sun when the scout satellite passes the border, calculating to obtain an optical path of the solar rays entering the interference station and an infeasible station distribution area where shielding exists on the optical path of the reflected rays of the interference station to the scout satellite;
s4: and outputting the optimal station distribution positions of all the interference stations through iteration, wherein the iteration process comprises the following steps:
s401: setting the target to be protected with the highest protection level as a priority protection target;
s402: traversing a feasible station distribution area, searching the point with the largest number of covered priority protection targets according to the action range of the interference station, and outputting the point as the optimal station distribution position;
s403: and removing the priority protection targets which are covered by the optimal station arrangement positions in the step S402 from the targets to be protected, and returning to the step S401 until all the targets to be protected are covered or the number of the output optimal station arrangement positions is equal to the number of the interference stations.
Preferably, the azimuth angle A of the sun is calculated according to the latitude of the station distribution area and the date and time of the passing of the reconnaissance satellite s And pitch angle H s Specific:
wherein,the dimension of the station distribution area is represented, delta represents solar declination of the scout satellite passing by, and t represents the time angle.
Preferably, the range of action of the interfering station is circular, when any point (x, y) is satisfiedThis point is covered by the interfering station where R represents the radius of action of the interfering station.
Preferably, in S2, the standing area is discretized into grid points by using a uniform triangular grid or square grid.
Preferably, the infeasible station distribution area further comprises an area in which station distribution cannot be performed due to environmental factors and a geometric space occupied by an object to be protected.
Preferably, the infeasible station distribution area when the scout satellite passes is calculated:
when the sun ray is incident on the light path of the interference station and is blocked, calculating the radius r of the blocked range of the sun ray i The following are provided:
wherein H is i Representing the height of the shade;
let the azimuth angle of the sun be the angle with the positive direction of the X-axis, and the clockwise direction be the positive direction, the coordinates of the four vertexes of the shelter are (X) i1 ,y i1 )、(x i2 ,y i2 )、(x i3 ,y i3 )、(x i4 ,y i4 ) Coordinates of four vertexes of the shade at four projection points along the direction of solar raysThe method comprises the following steps:
the union of the area surrounded by the four projection points and the vertical projection area of the four vertexes of the shielding object is the infeasible station distribution area when the sun rays are incident on the light path of the interference station and are shielded;
when the interference station reflected light is blocked on the light path of the reconnaissance satellite, calculating that the reflected light is receivedRadius r of shielding range i ' the following:
wherein H is i Indicating the height of the shelter, H' s Representing a pitch angle of the scout satellite;
let the azimuth angle of the reconnaissance satellite be the included angle with the positive direction of the X-axis, and the clockwise direction be the positive direction of the angle, and the coordinates of the four vertexes of the shelter be (X) i1 ,y i1 )、(x i2 ,y i2 )、(x i3 ,y i3 )、(x i4 ,y i4 ) Coordinates of four vertexes of the shade at four projection points in the opposite direction of the reflected lightThe method comprises the following steps:
wherein A 'is' s Representing azimuth angles of the scout satellites;
the union of the area surrounded by the four projection points and the vertical projection area of the four vertexes of the shielding object is the infeasible station distribution area when the light reflected by the interference station is shielded on the light path of the reconnaissance satellite.
Preferably, in S402, if there are multiple points capable of covering all the priority protection targets, the point with the largest number of targets to be protected capable of covering other protection levels is output as the optimal station distribution position; and if any point cannot cover all the priority protection targets, outputting the point with the largest number of the priority protection targets as the optimal station distribution position.
Compared with the prior art, the invention has the following beneficial effects:
the invention fully considers the practical problems that solar rays received by the passive interference station cannot be blocked by a building, rays reflected to satellites cannot be blocked by the building and the like, obtains a feasible passive interference station arrangement scheme under various constraint conditions, improves the deployment efficiency and success rate of the interference station, enables the interference station to better play a role, improves the effective interference capability of space reconnaissance, preferentially protects the building with high protection level in the station arrangement process, reduces the number of traversal points of each passive interference station, ensures that the areas with high protection level are preferentially covered when the number of the passive interference stations is insufficient, improves the coverage rate of the protection areas when the number of the passive interference stations is sufficient, ensures the safety of important facilities, improves the utilization rate of the interference station, and reduces the potential risks caused by the deployment of the interference station.
The invention is suitable for various passive interference stations and has strong universality and practicability.
Drawings
FIG. 1 is a core logic diagram of soft imaging disturbance in the background;
fig. 2 is a flowchart of a method for arranging a reverse sky optical reconnaissance passive interference station according to an embodiment of the present invention;
fig. 3 is a schematic view of a booth area and a building to be protected provided according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a solar ray and reflected ray occluded area provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of a feasible docking area provided in accordance with an embodiment of the present invention;
fig. 6 is a schematic diagram of passive interfering station placement location selection provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of the passive station locations after all the buildings to be protected are protected according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a location allocation performed by all passive interfering stations provided in accordance with an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, like modules are denoted by like reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, a detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
The anti-sky optical reconnaissance passive jamming station generally comprises: a planar mirror or an array of planar mirrors for reflecting solar rays toward an observation camera of the satellite to overexposure the solar rays; the supporting structure of the plane reflector can adopt a horizontal or polar axis type turntable capable of enabling the plane reflector to point to any space and is used for adjusting the normal inclination angle of the plane reflector; the upper computer system and the electronic control equipment.
The embodiment of the invention provides a station arrangement method for optically reconnaissance of passive interference stations in a space, which is shown in fig. 2 and specifically comprises the following steps:
s1: as shown in fig. 3, first, parameters required in the station design process need to be determined, and an input parameter set T is formed, and specifically, the following parameters need to be determined:
the method comprises the steps of a station distribution area of a passive interference station, the coordinate position and the geometric dimension of an object to be protected, the number and the action range of the interference stations, an area in the station distribution area, in which station distribution cannot be carried out due to the limitation of environmental factors, and the azimuth angle and the pitch angle of a scout satellite and the azimuth angle and the pitch angle of the sun when the scout satellite passes through the border.
The boundary of the station distribution area of the passive station may be any shape, and is determined according to actual requirements, and common areas include, but are not limited to, a rectangular area, a circular area, a polygonal area, and the like. In addition, if present in the standing areaAreas where no station can be located due to environmental factors, such as areas where no station can be located, including rivers, afforests, etc., are required to be marked one by one in the figure, and the areas where no station can be located are marked as omega I 。
The target to be protected is selected as an actual building in the station distribution area, the target to be protected is simplified into a cuboid according to the geometric dimension of the building, different buildings are numbered according to the scale, the protection level of the building is determined, only one building to be protected can exist in each protection level, a plurality of buildings to be protected can also exist, and the specific protection level is designed according to the actual requirement. The building to be protected cannot be provided with stations for interference stations, so that the area of the building to be protected is also marked as an area where the stations cannot be provided, and the area where the stations cannot be provided is marked as omega s 。
The number and the range of the interfering stations are determined according to the specific situation, in the embodiment, the number of the interfering stations is 15, the range of the interfering stations is circular, the radius of action is denoted as R, and when any point (x, y) in the station distribution area meets the following conditionsWhen the interference station is in the sky, the interference station is covered, and the anti-sky optical protection is realized.
Furthermore, the azimuth A 'of the scout satellite' s And pitch angle H' s The method is characterized in that the method is used for directly detecting the scout satellite when the scout satellite passes the border, and the azimuth angle A 'of the scout satellite is detected in the station arrangement design process' s And pitch angle H' s The design can be performed according to the angle which is favorable for reconnaissance satellite theoretically. While azimuth angle a of the sun s And pitch angle H s Can be calculated from the latitude of the station-laying area and the date and time of the border crossing of the scout satellite, and because the date and time of the border crossing of the scout satellite are uncertain, the azimuth angle A of the sun at any date and time needs to be established s And pitch angle H s The expression of the function is as follows:
wherein,the dimension of the area of the station is represented by a fixed value, delta represents the solar declination of the border crossing of the scout satellite, which depends on the date of the border crossing of the scout satellite, t represents the time angle, which is related to the time of the border crossing of the scout satellite.
S2: the uniform triangular grid or square grid is adopted to disperse the station distribution area into grid points, the discrete precision is determined by the station distribution precision requirement and the protection precision requirement, and the station distribution area is marked as omega a 。
S3: because the building to be protected has space size, when the reconnaissance satellite passes the border, the building to be protected can shelter from incident light of sun to the interference station, in addition, the building to be protected can also exist and shelter from the reflection light of being reflected to the reconnaissance satellite by the interference station, and under the two conditions, the interference station can not play the protection effect of anti-sky reconnaissance, and the partial area also belongs to the area where the station can not be arranged. Thus, constraints that can determine passive interfering station placement mainly include: the solar rays received by the passive interference station cannot be blocked by a building, the rays reflected to the satellite cannot be blocked by the building, the passive interference station cannot be arranged on the building and other non-station-arranging areas in which station arrangement cannot be performed due to the limitation of environmental factors, and the solar energy station-arranging system further comprises the building with high priority protection level of the passive interference station.
As shown in fig. 4, when there is a shade on the optical path of the solar ray incident on the interference station at a certain moment, the radius r of the shade range of the solar ray is calculated i The following are provided:
wherein,H i representing the height of the building;
and establishing a coordinate system, wherein the azimuth angle of the sun is an included angle with the positive direction of the X axis, the clockwise direction is an angle positive direction, and the anticlockwise direction is an angle negative direction. The four vertices of the building have coordinates (x i1 ,y i1 )、(x i2 ,y i2 )、(x i3 ,y i3 )、(x i4 ,y i4 ) Corresponding to the left lower, right upper and left upper vertexes, the coordinates of four projection points of four vertexes of the building along the solar ray directionThe method comprises the following steps:
the union of the area surrounded by the four projection points and the vertical projection areas of the four vertexes of the building is the infeasible station distribution area omega when the sunlight is incident on the light path of the interference station and is blocked bi The method comprises the steps of carrying out a first treatment on the surface of the Or if a certain projection vertex is within the building range, discarding the projection vertex, and connecting the rest projection vertex with the corresponding building vertex to obtain a closed area which is the blocked infeasible station distribution area omega bi 。
When the interference station reflects light to a light path of the reconnaissance satellite to be blocked, the calculation mode is consistent with the sun light, and the specific process is as follows:
calculating radius r of the shielded range of the reflected light i ' the following:
wherein H is i Representing the height of the building, H' s Representing a pitch angle of the scout satellite;
and establishing a coordinate system, wherein the azimuth angle of the reconnaissance satellite is an included angle with the positive direction of the X axis, the clockwise direction is an angle positive direction, and the anticlockwise direction is an angle negative direction. The four vertices of the building have coordinates (x i1 ,y i1 )、(x i2 ,y i2 )、(x i3 ,y i3 )、(x i4 ,y i4 ) Coordinates of four vertices of the building at four projection points in opposite directions of the reflected lightThe method comprises the following steps:
wherein A 'is' s Representing azimuth angles of the scout satellites;
the union of the area surrounded by the four projection points and the vertical projection areas of the four vertexes of the building is the infeasible station distribution area omega 'when the light reflected by the interference station is blocked on the light path of the reconnaissance satellite' bi The method comprises the steps of carrying out a first treatment on the surface of the Or if a certain projection vertex is within the building range, discarding the projection vertex, and connecting the rest projection vertex with the corresponding building vertex to obtain a closed area which is the blocked infeasible station distribution area omega' bi 。
Infeasible station distribution area omega for shielding light path of incident solar rays to interference station bi And infeasible station distribution area omega 'when shielding exists on the optical path of reflected light of interference station to reconnaissance satellite' bi Taking the union set and marking the union set as a infeasible area omega b 。
As shown in FIG. 5, since Ω is performed in the above calculation process bi And omega' bi The vertical projection areas of the building are included, namely, the non-station-distributing area omega of the building to be protected is included s . Station arrangement of passive interfering stationsRegion omega a Removing omega b And omega I The feasible station distribution area omega can be obtained f . Similarly, if omega is calculated as described above bi And omega' bi Is used for removing the non-station-laying area omega of the building to be protected s The station distribution area Ω of the passive interfering station is required a Removing omega b 、Ω I And omega s After that, the feasible station distribution area omega can be obtained f 。
S4: outputting the optimal station distribution positions of all the interference stations in an iterative mode, wherein the iterative process comprises the following steps:
s401: as shown in fig. 6, the building to be protected with the highest protection level is found first, if the protection levels of different areas in the building to be protected are also different, the building to be protected can be subdivided into a plurality of points to be protected with different protection levels, and the point to be protected with the highest protection level is set as the priority protection point.
S402: traversing feasible layout area omega f In the method, the number of covered priority protection points is searched according to the action range of the interference station, and when any point (x, y) meets the following conditions:
the point is covered by the interfering station. And finding out the point with the largest number of the coverage priority protection points, and outputting the point as the optimal station distribution position. If a plurality of points can cover all the prior protection points, outputting the point with the largest number of points to be protected, which can cover other protection levels, as an optimal station distribution position; if any point cannot cover all the priority protection points, outputting the point with the largest number of the priority protection targets as the optimal station distribution position, solving the remaining priority protection points which are not covered by the output optimal station distribution position, searching the next optimal station distribution position again to protect the remaining point priority protection points until all the priority protection points are protected, and outputting all the optimal station distribution positions, wherein the point set is output and is used for setting the passive interference station.
S403: the priority guard points that have been covered by the optimal site location in S402 are removed from the set of points to be protected, i.e. from the building area Ω to be protected. And returning to S401, finding out points to be protected with a protection level lower than one level in the protection building region Ω (at this time, some of these points may already be covered by the passive interfering stations of the building with a higher protection level, i.e. by the optimal station placement position output in step S402 in the previous iteration). And iterating the process until all points to be protected are covered or the number of the outputted optimal station distribution positions is equal to the number of the interference stations.
As shown in fig. 8, if the points to be protected are covered, there are redundant passive stations, the remaining areas without protection level can be protected, at this time, the areas can be laid by adopting a random point-taking mode, a point which is not protected is randomly selected, a point which satisfies the requirement in a circle with the point as a center and the radius R is found out in Ω, the position of the point which can be covered by the most point which is not protected is found out as the position of the passive station, and the operation is repeated until all the passive stations are laid. Multiple random point taking and selecting can be carried out once with maximum coverage rate as a result to be output.
While embodiments of the present invention have been illustrated and described above, it will be appreciated that the above described embodiments are illustrative and should not be construed as limiting the invention. Variations, modifications, alternatives and variations of the above-described embodiments may be made by those of ordinary skill in the art within the scope of the present invention.
The above embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (7)
1. The station arrangement method for the anti-sky optical reconnaissance passive interference station is characterized by comprising the following steps of:
s1: determining an input parameter set, wherein the input parameter set comprises a station distribution area, the coordinate position, the geometric dimension and the protection level of an object to be protected, the number and the action range of interference stations, the azimuth angle and the pitch angle of a scout satellite when the scout satellite passes the border, and the azimuth angle and the pitch angle of the sun;
s2: discretizing the station distribution area;
s3: according to the azimuth angle and the pitch angle of the scout satellite, the azimuth angle and the pitch angle of the sun when the scout satellite passes the border, calculating to obtain an optical path of solar rays entering the interference station and an infeasible station distribution area with shielding on the optical path of the reflected rays of the interference station to the scout satellite;
s4: and outputting the optimal station distribution positions of all the interference stations through iteration, wherein the iteration process is as follows:
s401: setting the target to be protected with the highest protection level as a priority protection target;
s402: traversing a feasible station distribution area, searching the point with the largest number of the covered prior protection targets according to the action range of the interference station, and outputting the point as the optimal station distribution position;
s403: and removing the prior protection targets which are covered by the optimal station arrangement positions in the step S402 from the targets to be protected, and returning to the step S401 until all the targets to be protected are covered or the number of the output optimal station arrangement positions is equal to the number of the interference stations.
2. The method for arranging the anti-sky optical reconnaissance passive interference station according to claim 1, wherein the azimuth angle As and the pitch angle Hs of the sun are calculated according to the latitude of the arranging area and the date and time of the reconnaissance satellite passing by, specifically:
wherein,and (3) representing the dimension of the station distribution area, wherein delta represents the solar declination of the scout satellite passing by, and t represents the time angle.
3. The method for arranging a passive station for anti-space optical reconnaissance according to claim 1, wherein, according to the range of action of the station being circular, when any point (x, y) satisfiesThis point is covered by the interfering station, where R represents the radius of action of the interfering station.
4. The method for arranging the passive interference station for the anti-space optical reconnaissance according to claim 1, wherein in the step S2, the station arranging area is discretized into grid points by adopting a uniform triangular grid or square grid.
5. The method for arranging the passive interference station for anti-space optical reconnaissance as set forth in claim 1, wherein the infeasible station arranging area further comprises an area in which station arranging cannot be performed due to environmental factors and a geometric space occupied by the object to be protected.
6. The method of claim 2, wherein the infeasible distribution area of the reconnaissance satellite in transit is calculated:
when the sun rays are incident on the light path of the interference station and are blocked, calculating the radius r of the blocked range of the sun rays i The following are provided:
where Hi represents the height of the shade;
the azimuth angle of the sun is an included angle with the positive direction of the X axis, the clockwise direction is the positive direction of the angle, and the coordinates of the four vertexes of the shielding object are (xi 1, yi 1), (xi) 2 ,yi 2 )、(xi 3 ,yi 3 )、(x i4 ,y i4 ) Coordinates of four vertexes of the shade at four projection points along the direction of solar raysThe method comprises the following steps:
the union of the area surrounded by the four projection points and the vertical projection area of the four vertexes of the shielding object is the infeasible station distribution area when the sun rays are incident on the light path of the interference station and are shielded;
when the interference station reflects light to the light path of the reconnaissance satellite to be blocked, calculating the radius r of the blocked range of the reflected light i ' the following:
wherein Hi represents the height of the shelter, and Hs' represents the pitch angle of the reconnaissance satellite;
the azimuth angle of the reconnaissance satellite is an included angle with the positive direction of the X axis, the clockwise direction is the positive direction of the angle, and the coordinates of four vertexes of the shielding object are (xi 1, yi 1), (xi) 2 ,yi 2 )、(xi 3 ,yi 3 )、(xi 4 ,yi 4 ) The four vertices of the shade sit at four projection points in the opposite direction of the reflected lightLabel (C)The method comprises the following steps:
wherein As' represents the azimuth of the scout satellite;
the union of the area surrounded by the four projection points and the vertical projection area of the four vertexes of the shielding object is the infeasible station distribution area when the light reflected by the interference station is shielded on the light path of the reconnaissance satellite.
7. The method for arranging the anti-sky optical reconnaissance passive interference station according to claim 2, wherein in S402, if there are a plurality of points capable of covering all the preferential protection targets, the point with the largest number of the targets to be protected capable of covering other protection levels is outputted as the optimal station arranging position; and if any point cannot cover all the priority protection targets, outputting the point with the largest number of the priority protection targets which can be covered as the optimal station distribution position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410037985.9A CN117872288A (en) | 2024-01-10 | 2024-01-10 | Station arrangement method for optical reconnaissance passive interference station in anti-sky |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410037985.9A CN117872288A (en) | 2024-01-10 | 2024-01-10 | Station arrangement method for optical reconnaissance passive interference station in anti-sky |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117872288A true CN117872288A (en) | 2024-04-12 |
Family
ID=90582414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410037985.9A Pending CN117872288A (en) | 2024-01-10 | 2024-01-10 | Station arrangement method for optical reconnaissance passive interference station in anti-sky |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117872288A (en) |
-
2024
- 2024-01-10 CN CN202410037985.9A patent/CN117872288A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110851945B (en) | Photovoltaic array arrangement method and photovoltaic array arrangement scheme automatic generation system | |
| US7499079B2 (en) | Multi-camera image stitching for a distributed aperture system | |
| US5351309A (en) | Image edge sensor | |
| Hunziker et al. | RefPlanets: Search for reflected light from extrasolar planets with SPHERE/ZIMPOL | |
| CN108037513A (en) | A kind of method that APD laser radar spatial resolutions are improved based on phased lattice scanning | |
| US20150234943A1 (en) | Shade calculation for solar installation | |
| CN107504918A (en) | Radio telescope surface shape measurement method and device | |
| Li et al. | Skylight polarization patterns under urban obscurations and a navigation method adapted to urban environments | |
| JP2003132357A (en) | Linear image detecting method in planar image | |
| CN117872288A (en) | Station arrangement method for optical reconnaissance passive interference station in anti-sky | |
| JP6899915B2 (en) | Shadow casting for elevation data grid | |
| Robledo et al. | Dynamic and visual simulation of bifacial energy gain for photovoltaic plants | |
| Platais et al. | WIYN Open Cluster Study. VIII. The Geometry and Stability of the NOAO CCD Mosaic Imager | |
| Galliher et al. | Packing the sky: coverage optimization and evaluation for large telescope arrays | |
| WO2022043880A2 (en) | A method for maximization of energy yield from a photovoltaic installation and a method of installing solar modules | |
| Grefenstette et al. | Ground calibration of the spatial response and quantum efficiency of the CdZnTe hard x-ray detectors for NuSTAR | |
| CN117292057A (en) | Photovoltaic module shadow shielding analysis method and device, electronic equipment and storage medium | |
| Alqaysi et al. | Design exploration of multi-camera dome | |
| Okumura et al. | Evaluation of the effective mirror area of CTA Small-Sized Telescopes for camera design and Monte Carlo simulation | |
| Okumura et al. | ROBAST: Development of a non-sequential ray-tracing simulation library and its applications in the Cherenkov Telescope Array | |
| Ouyang et al. | An approach to space-debris optical image simulation considering the streak and saturated star-background | |
| Webb et al. | Efficient image generation for EO system simulation | |
| Hughes et al. | A submillimetre survey of the Hubble Deep Field: unveiling dust-enshrouded star formation in the Early Universe | |
| CN115494883A (en) | Inverse tracking optimization method and device, electronic equipment and storage medium | |
| CN117291016A (en) | Method, device, equipment and storage medium for analyzing surface irradiation amount of photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |