CN112183842A - Method and equipment for radar site selection aid decision - Google Patents
Method and equipment for radar site selection aid decision Download PDFInfo
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Abstract
The invention provides a method and equipment for radar site selection aid decision-making, firstly setting detection height and distance, then traversing each radar preselected site under the condition of the same detection height and distance, and calculating the circumferential shielding angle of each preselected site to form a shielding angle graph; when radar site selection is carried out, address information is input to determine a radar pre-selection site, and the corresponding terrain shielding condition is displayed through height and distance selection. The invention is convenient for comparing and analyzing the influence of the radar on the terrain shielding, the shielding angle diagram is more complete and accurate, and the invention can help measuring personnel to quickly, simply and accurately select the radar site.
Description
Technical Field
The invention relates to a radar site selection method which can calculate and display the influence of terrain shielding and earth curvature on a radar position, and help decision-making personnel to comprehensively analyze and judge according to the shielding condition and the influence of the earth curvature and select an optimal position.
Background
In engineering practice, radar site selection is susceptible to terrain shadowing, resulting in blocking of signal transmission and reception. Therefore, the accurate control of the influence of the terrain shielding on the radar is the core and key of radar site selection, and with the wide application of more and more civil radars of different types in various fields, the method for reducing the influence of the terrain shielding to the maximum degree becomes an important research direction of the radar site selection.
At present, a plurality of stations are preselected firstly during radar site selection, then field survey is carried out manually, shielding elevation angles are measured once at intervals of 5-10 degrees of azimuth angles on a flat terrain, shielding elevation angles are measured once at intervals of 1 degree of azimuth angles on a complex terrain, then a peripheral shielding angle distribution graph is drawn, and comprehensive comparison is carried out to select a proper position. However, the method is time-consuming, low in accuracy and short of an effective technical scheme as an auxiliary means for radar site selection.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for radar site selection aid decision, which can quickly, simply and accurately select radar sites.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for radar site selection aid decision making is characterized by firstly setting detection height and distance, traversing each radar preselected site under the condition of the same detection height and distance, and calculating a circumferential shielding angle of each preselected site to form a shielding angle graph; when radar site selection is carried out, address information is input to determine a radar pre-selection site, and the corresponding terrain shielding condition is displayed through height and distance selection.
And when the terrain shielding and the visibility percentage of the circumference display of the preselected station address is less than 5%, the terrain shielding and the visibility in the main detection direction are calculated and displayed by setting the angle range of the main detection direction of the radar.
The shading angle graph distinguishes shading and communication situations by colors, and the shading and communication sizes are displayed in percentage.
The detection height range is 0-3 kilometers; the detection distance range is 1-100 kilometers.
The shielding angle diagram displays an earth curvature influence area in a terrain shielding mode, wherein the earth curvature influence area refers to an area beyond the farthest direct viewing distance of space wave transmission.
The shielding angle graph is converted into a through view or a three-dimensional graph, the through view shows an area or a direction where the radar pre-selection site is minimally influenced by terrain shielding, and the three-dimensional graph shows the influence of terrain in a selected area range on the radar pre-selection site.
The invention also provides equipment for radar site selection aid decision-making, wherein the display window is arranged in a shockproof, moistureproof and waterproof shell frame, and a USB interface is externally arranged on the shell frame and used for connecting a computer to complete data transmission; the external power key is used for starting or closing the equipment; a reset key is externally arranged for restarting the equipment; the external volume key adjusts the prompting volume; the external network interface is used for connecting an external network; the area on one side of the display window is a graphic display area, the other side of the display window is a control area, the graphic display area is used for displaying a shielding angle graph, a through view graph and a three-dimensional graph and displaying shielding percentage, and the control area is used for setting position coordinates, detection height and detection positions, selecting a display range and switching graphic display styles.
When the device is used, latitude and longitude coordinates of a radar pre-selected address are input in a display window control area, an elevation option is clicked and extracted, and elevation data of the pre-selected address position are displayed in a graphic display area; adding the elevation value of the pre-selected address position and the height value of the radar antenna to obtain the actual height of the radar pre-selected address position; selecting display height and distance, clicking a calculation option, and displaying a shielding angle graph in the selected height and distance range in a graph display area to reflect the shielding influence of terrain and earth curvature on a radar pre-address position; and adjusting the radar pre-selected address position until the shielding influence is minimum.
The invention has the beneficial effects that: based on a given radar preselected station, under the condition of the same height and distance, calculating the circumferential shielding angle of each preselected station point by point, displaying the circumferential shielding angle in the form of a shielding angle graph or a through view, and distinguishing shielding and through viewing conditions by colors so as to enable the terrain shielding conditions to be more visual and more intuitive. The invention displays the shielding and the visibility in percentage form, and is convenient for comparing and analyzing the condition of the radar influenced by the terrain shielding. According to the invention, under the condition that the terrain shielding and the visibility percentage are less than 5% in circumferential display and the contrast is not significant, the terrain shielding and the visibility in the main detection direction are calculated and displayed by setting the main detection direction of the radar, so that further reference is provided for radar site selection. According to the invention, the influence of the curvature of the earth is displayed in a terrain shielding manner, so that the shielding angle diagram is more complete and accurate.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of a main function menu window of the present invention;
in the figure, 1-frame, 2-display window, 3-volume key, 4-power key, 5-reset key, 6 data line interface, 7-camera, 8-charging socket and 9-network interface.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, which include, but are not limited to, the following examples.
The invention provides a method for radar site selection aid decision, which is characterized in that a plurality of radar preselected sites are taken as a basis, and under the condition of the same detection height and distance, the circumferential shielding angle of each preselected site is calculated point by point to form a shielding angle graph. And for the condition that the shielding between different pre-selected sites is less than 5%, further analyzing and comparing the shielding influence by setting the main detection direction of the radar. The main detection direction is determined by setting a left angle and a right angle, and under the condition of the same detection height and distance, the shielding angle of the main detection direction of each pre-selected station is calculated point by point to form a shielding angle graph. The occlusion angle map distinguishes occlusion and communication by color, displaying occlusion and communication size in percent.
The invention can set radar detection height and distance, the default height of the system is 50 meters, the distance is 2 kilometers, the selectable range of the height is 0-3 kilometers and comprises 8 options of 0 meter, 50 meters, 100 meters, 200 meters, 500 meters, 800 meters, 1000 meters and 3000 meters, and the selectable range of the distance is 1-100 kilometers and comprises 8 options of 1 kilometer, 2 kilometers, 5 kilometers, 10 kilometers, 20 kilometers, 40 kilometers, 80 kilometers and 100 kilometers.
The earth curvature influence area refers to an area beyond the farthest direct viewing distance of space wave transmission.
The invention forms a shielding angle graph by calculating the shielding angle of each radar station pre-selected address point by point. And correspondingly displaying the terrain shielding condition by selecting the height and the distance.
The invention displays the influence of the curvature of the earth in a terrain shading mode.
The shielding angle diagram, the through view diagram and the three-dimensional diagram display the influence of the radar site selection on the terrain in different modes, and enrich the means of analysis and judgment.
In the shading angle diagram, green represents the perspective, yellow and red represent the non-perspective, and red represents that the region is influenced most by the terrain shading. In the through view, green represents the perspective and white represents the non-perspective. In the three-dimensional map, blue, green, yellow and red represent that the terrain elevation increases sequentially.
The radar site selection auxiliary decision-making equipment which is specifically realized by the invention can clearly display the terrain of a 4 ten thousand square kilometers region at the maximum in a full screen, can also automatically select the display range according to the requirement, and can be used for site selection of various civil radars. Has the characteristics of small volume, low cost, high reliability and the like.
The radar site selection aid decision-making equipment specifically realized by the invention is shown in figure 1, the appearance design is dark green, the shell frame 1 adopts an anti-seismic design, the device has the characteristics of moisture resistance and water resistance, and can be normally used in an environment of-40 ℃ to 40 ℃, the display window 2 is a touch screen, the external 1 USB interfaces 6 can be connected with a computer, bottom layer data is set, an operation program is modified, the external power key 4 is used for starting or closing the program, the external reset key 5 can restart the program, the external volume key 3 can adjust the volume, the camera 1 can be used for taking pictures, the charging socket 8 can be used for charging the equipment, and the network interface 9 can be used for connecting the equipment with an external network.
The terrain shading calculation display interface of the invention is shown in fig. 2, the left area of the screen is a graphic display area, and the right area is a control area. The graphic display area can display a shielding angle graph, a through graph and a three-dimensional graph, the shielding angle graph, the through graph and the three-dimensional graph can be switched mutually, and shielding percentage can also be displayed. The control area can set parameters, select a display range and switch graphic display styles.
And inputting longitude and latitude coordinates of the pre-selected address in the control area, clicking an elevation option to extract elevation data, displaying the elevation data of the pre-selected address position, adding the elevation value of the pre-selected address position and the elevation value of the radar antenna, and inputting the sum to obtain the actual height of the radar pre-selected address position. And selecting the display height and distance, clicking the calculation option, and displaying a shielding angle graph within the selected height and distance range, wherein the shielding influence of terrain and earth curvature on the radar pre-address position is visually reflected on the graph. The radar pre-selected address position can be adjusted at any time according to the shielding influence condition until the shielding influence is minimum.
And clicking the through view, directly converting the through view into the through view on the basis of the shielding angle graph or the three-dimensional graph, and displaying the area or the direction of the radar pre-address position, which is minimally influenced by terrain shielding.
And clicking the three-dimensional graph, directly converting the three-dimensional graph into the three-dimensional graph on the basis of the shielding angle graph or the through view graph, and displaying the influence of the terrain in the selected region range on the radar pre-selected address position.
The power key is pressed to start the equipment, the terrain shielding calculation display interface is entered, the longitude and latitude coordinates of a certain point are input, the positioning option can be opened by clicking, and the longitude and latitude coordinates of the standing point are displayed by default by the system. Selecting the height and the distance, clicking an elevation extraction option, displaying the elevation of the input point, adding the elevation and the radar height, and inputting the sum into an elevation frame again to obtain the actual elevation of the certain point. Clicking on the calculation option, the screen displays a map of the shading angle within the selected height and distance range, centered at the input point. Clicking on the through view, the screen displays the through view at the selected height and distance range. Clicking on the three-dimensional map and the screen displays the three-dimensional map within the selected height and distance range. The shading angle map, the through view map and the three-dimensional map centered at an arbitrary point can be calculated as needed. Pressing the power key turns off the device.
Claims (8)
1. A method for radar site selection aid decision making is characterized in that: firstly, setting a detection height and a detection distance, traversing each radar preselected station under the condition of the same detection height and the same detection distance, and calculating a circumferential shielding angle of each preselected station to form a shielding angle graph; when radar site selection is carried out, address information is input to determine a radar pre-selection site, and the corresponding terrain shielding condition is displayed through height and distance selection.
2. A method for radar site selection aid decision making according to claim 1, characterized by: and when the terrain shielding and the visibility percentage of the circumference display of the preselected station address is less than 5%, the terrain shielding and the visibility in the main detection direction are calculated and displayed by setting the angle range of the main detection direction of the radar.
3. A method for radar site selection aid decision making according to claim 1, characterized by: the shading angle graph distinguishes shading and communication situations by colors, and the shading and communication sizes are displayed in percentage.
4. A method for radar site selection aid decision making according to claim 1, characterized by: the detection height range is 0-3 kilometers; the detection distance range is 1-100 kilometers.
5. A method for radar site selection aid decision making according to claim 1, characterized by: the shielding angle diagram displays an earth curvature influence area in a terrain shielding mode, wherein the earth curvature influence area refers to an area beyond the farthest direct viewing distance of space wave transmission.
6. A method for radar site selection aid decision making according to claim 1, characterized by: the shielding angle graph is converted into a through view or a three-dimensional graph, the through view shows an area or a direction where the radar pre-selection site is minimally influenced by terrain shielding, and the three-dimensional graph shows the influence of terrain in a selected area range on the radar pre-selection site.
7. An apparatus for radar site selection aid decision making implementing the method of claim 1, characterized by: installing the display window in a shockproof, moistureproof and waterproof shell frame, wherein a USB interface is externally arranged on the shell frame and used for connecting a computer to complete data transmission; the external power key is used for starting or closing the equipment; a reset key is externally arranged for restarting the equipment; the external volume key adjusts the prompting volume; the external network interface is used for connecting an external network; the area on one side of the display window is a graphic display area, the other side of the display window is a control area, the graphic display area is used for displaying a shielding angle graph, a through view graph and a three-dimensional graph and displaying shielding percentage, and the control area is used for setting position coordinates, detection height and detection positions, selecting a display range and switching graphic display styles.
8. A method for radar site selection aid decision making according to claim 1, characterized by: when the device is used, latitude and longitude coordinates of a radar pre-selected address are input in a display window control area, an elevation option is clicked and extracted, and elevation data of the pre-selected address position are displayed in a graphic display area; adding the elevation value of the pre-selected address position and the height value of the radar antenna to obtain the actual height of the radar pre-selected address position; selecting display height and distance, clicking a calculation option, and displaying a shielding angle graph in the selected height and distance range in a graph display area to reflect the shielding influence of terrain and earth curvature on a radar pre-address position; and adjusting the radar pre-selected address position until the shielding influence is minimum.
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| CN202011015065.5A CN112183842A (en) | 2020-09-24 | 2020-09-24 | Method and equipment for radar site selection aid decision |
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| CN202011015065.5A CN112183842A (en) | 2020-09-24 | 2020-09-24 | Method and equipment for radar site selection aid decision |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113156441A (en) * | 2021-03-25 | 2021-07-23 | 广东省气象探测数据中心 | Effective three-dimensional airspace subdivision approximation calculation method for meteorological radar detection |
| CN118112523A (en) * | 2023-12-18 | 2024-05-31 | 北京四象爱数科技有限公司 | Visualization method, device and storage medium for radar detection capability prediction |
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| CN104678385A (en) * | 2015-02-28 | 2015-06-03 | 武汉大学 | High-frequency over-the-horizon radar station selection auxiliary system and method |
| CN105651267A (en) * | 2016-03-21 | 2016-06-08 | 中国人民解放军空军装备研究院雷达与电子对抗研究所 | Radar position selection method based on three dimensional laser scanner and GIS (Geographic Information System) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156441A (en) * | 2021-03-25 | 2021-07-23 | 广东省气象探测数据中心 | Effective three-dimensional airspace subdivision approximation calculation method for meteorological radar detection |
| CN113156441B (en) * | 2021-03-25 | 2022-05-27 | 广东省气象探测数据中心 | Effective three-dimensional airspace subdivision approximation calculation method for meteorological radar detection |
| CN118112523A (en) * | 2023-12-18 | 2024-05-31 | 北京四象爱数科技有限公司 | Visualization method, device and storage medium for radar detection capability prediction |
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Application publication date: 20210105 |