Slope radar antenna and real-time imaging method and device

Abstract

The invention discloses a side slope radar antenna and a real-time imaging method and device, and relates to the field of side slope safety monitoring. The side slope radar antenna comprises a shaped reflecting surface and a feed source; the designed shaped reflecting surface is in a paraboloid shape with opposite opening directions in the horizontal direction and the vertical direction, and the centerline of the paraboloid in the horizontal direction sweeps along the centerline of the paraboloid in the vertical direction to form the shaped reflecting surface with different pitching beam widths. The paraboloid in the vertical direction is used for diffusing emitted radar signals to form a wide wave beam so as to enlarge the scanning coverage range, the requirement for all-area monitoring coverage of a kilometer-level ultrahigh steep slope can be met, the paraboloid in the horizontal direction is used for forming a narrow wave beam, the received radar signals are focused, and the scanning coverage range is expanded. Signal energy can be concentrated to realize azimuth high-precision monitoring, when area detection is carried out, an azimuth wave beam is narrow, azimuth high resolution is realized, and azimuth real-time imaging can be realized only by carrying out range one-dimensional imaging at each azimuth angle.

Description

Technical Field

[0001] The present application relates to the field of slope safety monitoring, and in particular, to a slope radar antenna, a real-time imaging method and a device thereof. Background Art

[0002] There are a large number of open-pit mines in China. Due to the combined action of multiple factors such as rainfall, blasting, and earthquake-induced structural plane sliding on the artificial slopes formed by large-scale mining, the slopes are prone to instability and landslides, which not only seriously threaten the safety of mining operations in the mining area, but may also trigger chain production safety accidents and cause huge economic losses. Slope radar is the core equipment in the field of slope safety monitoring, with the characteristics of non-contact area monitoring, high monitoring accuracy, and wide coverage area. According to the working principle, it can be divided into two types: ground-based synthetic aperture radar (GB-SAR) and ground-based true aperture radar (GB-RAR). Both types of radar have been widely used in the deformation monitoring and imminent-sliding warning of open-pit mines. However, as the mining depth of open-pit mines continues to extend deep into the ground, artificial slopes with a height difference of thousands of meters will be formed in open-pit mining, and their steep shape and complex geological structure have significantly reduced the stability of rock masses. Facing the need for full-area monitoring coverage and real-time imaging of kilometer-level ultra-steep slopes, the capabilities of traditional slope radars are insufficient. Summary of the Invention

[0003] The purpose of the present application is to provide a slope radar antenna, a real-time imaging method and a device thereof, which can meet the needs of full-area monitoring coverage and real-time imaging of kilometer-level ultra-steep slopes.

[0004] To achieve the above object, the present application provides the following solutions: In the first aspect, the present application provides a slope radar antenna, which includes: a shaped reflector and a feed source; the shaped reflector is in the shape of a first paraboloid in the horizontal direction; the shaped reflector is in the shape of a second paraboloid in the vertical direction; the opening direction of the first paraboloid faces the slope area to be monitored; the opening directions of the first paraboloid and the second paraboloid are opposite; The first paraboloid is used to focus the radar signal to form a narrow beam; The second paraboloid is used to diffuse the radar signal in the vertical direction to form a wide beam to cover the slope area to be monitored; The feed source is arranged at the focus of the first paraboloid and is used to transmit and receive radar signals.

[0005] In the second aspect, the present application provides a real-time imaging method based on the above slope radar antenna, including: Real-time obtaining the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle; Determining the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle; Judge whether there is a high-risk area according to the wide-area three-dimensional real-time imaging at different times; the high-risk area refers to the slope area where the cumulative deformation error exceeds a preset value; If so, adjust the azimuth angle of the slope radar antenna to the azimuth angle corresponding to the high-risk area, and obtain the real-time imaging of the pitch section of the high-risk area in real time to monitor the slope deformation of the high-risk area in real time; If not, return to the step of "obtaining the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle in real time".

[0006] In a third aspect, the present application provides a computer device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to implement the above-mentioned real-time imaging method based on the slope radar antenna.

[0007] In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned real-time imaging method based on the slope radar antenna is implemented.

[0008] According to the specific embodiments provided by the present application, the following technical effects are disclosed in the present application: The present application provides a slope radar antenna, a real-time imaging method and device. The slope radar antenna includes: a shaped reflector and a feed source; the shaped reflector has a first parabolic shape in the horizontal direction; the shaped reflector has a second parabolic shape in the vertical direction; the opening direction of the first parabolic surface faces the slope area to be monitored; the opening directions of the first parabolic surface and the second parabolic surface are opposite; the first parabolic surface is used to focus the radar signal to form a narrow beam; the second parabolic surface is used to diffuse the radar signal in the vertical direction to form a wide beam to cover the slope area to be monitored; the feed source is arranged at the focus of the first parabolic surface and is used to transmit radar signals to the slope area to be monitored and receive the radar signals scattered by the slope area to be monitored. The shaped reflector designed in the present application has parabolic shapes with opposite opening directions in the horizontal and vertical directions. The radar signal transmitted is diffused by the reverse parabolic surface in the vertical direction to form a wide beam to expand the coverage range of the signal during scanning, which can meet the full-area monitoring coverage of kilometer-level ultra-high and steep slopes. The parabolic surface in the horizontal direction is used to form a narrow beam to focus the received radar signal, which can concentrate the signal energy to achieve high-precision monitoring in the azimuth direction. When performing area detection, the azimuth beam is narrow, with high azimuth resolution. Only one-dimensional range imaging in the range direction needs to be performed at each azimuth angle, and real-time imaging in the azimuth direction can be realized. Description of the Drawings

[0009] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0010] Figure 1 Schematic diagram of the structure of a slope radar antenna provided by an embodiment of the present application; Figure 2 Schematic diagram of the midlines in the horizontal and vertical directions of the shaped reflector provided by an embodiment of the present application; Figure 3 Schematic diagram of the process flow of a real-time imaging method based on a slope radar antenna provided by an embodiment of the present application; Figure 4 Three-dimensional radiation pattern obtained by full-wave simulation of the slope radar antenna provided by an embodiment of the present application; Figure 5 Elevation cross-section radiation pattern provided by an embodiment of the present application; Figure 6 Azimuth cross-section radiation pattern provided by an embodiment of the present application; Figure 7 Schematic diagram of the structure of a computer device provided by an embodiment of the present application.

[0011] Reference numerals: 1 - Shaped reflector; 2 - Feed; 3 - Midline of the horizontal parabolic surface; 4 - Midline of the vertical parabolic surface. Detailed implementation manners

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0013] In the face of the need for full-area monitoring coverage and real-time imaging of kilometer-level ultra-steep slopes, traditional slope radars are insufficient. Specifically: For ground-based synthetic aperture radars, the beam range in the antenna elevation direction is limited, making it difficult to cover kilometer-level ultra-steep slopes, and it takes an aperture synthesis period to form an image, resulting in poor timeliness. For ground-based true aperture radars, although they form a narrow beam with high spatial resolution through large-aperture antennas and can perform real-time imaging of the local area within the beam coverage, in the face of kilometer-level ultra-steep slopes, a rotating platform is needed to perform one-by-one scanning at multiple elevation angles, resulting in a significant extension of the monitoring period and a long monitoring period. Although the true aperture radar antenna in phased array form can significantly improve the monitoring period by using beam electronic scanning, its high spatial resolution is positively correlated with the T / R channels, resulting in high costs. In addition, the off-axis large-angle beam scanning of the true aperture radar antenna in phased array form will cause a decrease in gain and beam broadening, deteriorating the spatial resolution. Therefore, for the problems of ground-based synthetic aperture radars (GB-SAR): Insufficient coverage: The beam range in the elevation direction is narrow and cannot cover kilometer-level ultra-steep slopes; Poor timeliness: It takes an aperture synthesis period to form an image and cannot perform real-time monitoring. For the problems of ground-based true aperture radars (GB-RAR): Long scanning period: Two-dimensional mechanical scanning (azimuth + elevation) is required, which takes a long time. For the problems of the true aperture radar antenna in phased array form: High cost: High resolution requires a large number of T / R channels, and the performance deteriorates during large-angle scanning (gain reduction, beam broadening).

[0014] In view of the above deficiencies in the capabilities of traditional slope radars, the present application proposes a slope radar antenna, a real-time imaging method, and a device, which can meet the needs of full-area monitoring coverage and real-time imaging of kilometer-level ultra-steep slopes.

[0015] To make the above objects, features, and advantages of the present application more obvious and understandable, the following further detailed description of the present application will be given in conjunction with the accompanying drawings and specific embodiments.

[0016] In an exemplary embodiment, the present application proposes a slope radar antenna, as Figure 1 shown, the slope radar antenna includes: a shaped reflector 1 and a feed 2.

[0017] Among them, the shaped reflector 1 is the main body of the antenna and is a specially designed arc-shaped reflector. The arc-shaped reflector is parabolic in the horizontal direction and is used to focus the radar signal into a narrow beam to improve the resolution in the horizontal direction. In the vertical direction, it is an "inverted parabola" shape, causing the signal to spread in the vertical direction to form a wide beam and expand the coverage range. Figuratively speaking, in the horizontal direction, the reflector is like a "spotlight" to concentrate energy to achieve high precision, and in the vertical direction, the reflector is like a "floodlight" to expand the coverage range. The combination of the two can not only detect accurately but also cover the entire area of the steep slope.

[0018] Therefore, as Figure 1As shown, the shaped reflector is in the shape of a first paraboloid in the horizontal direction; the shaped reflector is in the shape of a second paraboloid in the vertical direction; the opening direction of the first paraboloid faces the slope area to be monitored; the opening directions of the first paraboloid and the second paraboloid are opposite.

[0019] The first paraboloid is used to focus the radar signal into a narrow beam.

[0020] The second paraboloid is used to spread the radar signal in the vertical direction to form a wide beam to cover the slope area to be monitored. Optionally, it can cover an ultra-high and steep slope area with a height difference of kilometers.

[0021] The feed is arranged at the focus of the first paraboloid and is used to transmit radar signals to the slope area to be monitored and receive radar signals fed back from the slope area to be monitored.

[0022] The feed is a signal transmitting / receiving device located at the focus of the horizontal paraboloid to ensure signal focusing in the horizontal direction.

[0023] To more clearly describe the paraboloids presented in the horizontal and vertical directions, two equations are used to describe the geometric shape characteristics of the entire shaped reflector. These two equations are the median line equation of the paraboloid in the horizontal direction (the first paraboloid) and the median line equation of the paraboloid in the vertical direction (the second paraboloid). As Figure 1 shown, the median line equation of the median line 3 of the first paraboloid is: ; In the formula, F x is the focal length of the first paraboloid; x is the x-axis coordinate of a certain point on the median line 3 of the first paraboloid; z1 is the vertical height (or depth) of a certain point on the median line 3 of the first paraboloid in the three-dimensional coordinate system.

[0024] The median line equation of the median line 4 of the second paraboloid is: ; In the formula, F y is the focal length of the second paraboloid, used to diverge the feed beam to form a wide beam; y is the y-axis coordinate of a certain point on the median line 4 of the second paraboloid; z2 is the vertical height (or depth) of a certain point on the median line 4 of the second paraboloid in the three-dimensional coordinate system; H is the height of the shaped reflector; α, β are shaping control factors.

[0025] As Figure 2 shown, it more vividly expresses the meaning of the two median line equations. The radar antenna can be formed by the median line 3 in the horizontal direction sweeping along the median line 4 in the vertical direction. Figure 2In this case, A refers to the scanning direction generated by the radar antenna. Among them, the purpose of the shaping control factors (α, β) is to control the formation rate of the vertical parabola, and to avoid the situation that the horizontal parabola focus position deviates from the feeder too fast along the vertical median line 4 during the process of forming the shaped reflector by sweeping the horizontal median line 3 along the vertical median line, resulting in the azimuth main lobe broadening, coverage elevation, and deteriorating the azimuth spatial resolution. Compared with the parabolic cylinder reflector, by adjusting parameters such as F y 、H、α、β, etc., under the condition of the limited height of the reflector, radar antennas with different elevation beam widths can be obtained, reducing the size and weight of the radar antenna.

[0026] In another exemplary embodiment of the present application, the present application provides a real-time imaging method based on the above slope radar antenna, as Figure 3 shown, the real-time imaging method based on the slope radar antenna includes the following steps.

[0027] S1: Real-time obtain the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle; the one-dimensional range imaging is determined according to the radar signals received by the feeder of the slope radar antenna.

[0028] S2: Determine the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle.

[0029] S3: Determine whether there is a high-risk area according to the wide-area three-dimensional real-time imaging at different times; the high-risk area refers to the slope area where the cumulative deformation error exceeds the preset value.

[0030] If so, execute step S4: Adjust the azimuth angle of the slope radar antenna to the azimuth angle corresponding to the high-risk area, and real-time obtain the elevation cross-section real-time imaging of the high-risk area to monitor the slope deformation of the high-risk area in real time.

[0031] If not, return to step S1 "Real-time obtain the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle".

[0032] When the present application conducts safety monitoring on the slope area to be monitored, when no high-risk area is found temporarily, the radar first performs wide-area three-dimensional imaging. If a high-risk area is found during the dynamic wide-area scanning process, then local fixed-point monitoring is performed on the key area to achieve the high efficiency of safety monitoring.

[0033] Among them, in step S2, to determine the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle, it specifically includes: (1) Determine the one-dimensional range imaging at each azimuth angle.

[0034] The range direction refers to the straight-line distance direction from the radar wave emission directly to the target, and the one-dimensional range direction imaging result is obtained through the imaging algorithm.

[0035] The imaging algorithm is as follows:

[0036] Among them, is the current azimuth angle of the radar; k is the spatial frequency (also called the wave number), which is related to the wavelength of the radar signal; is the original echo signal received by the radar at the azimuth angle ; IFFT[[ ] k is the frequency-domain Fourier transform of ; R is the position of the target in the range direction, and the target refers to the slope area covered under the current azimuth angle; is the one-dimensional range direction imaging result of the radar at the azimuth angle .

[0037] (2) Determine the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range direction imaging at each azimuth angle and the DEM map corresponding to the slope area to be monitored.

[0038] Specifically, the one-dimensional range direction imaging at each azimuth angle and the DEM map corresponding to the slope area to be monitored are stitched along the azimuth direction to form the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored.

[0039] The one-dimensional range direction imaging is a planar image without elevation resolution. At this time, the registered digital elevation model (DEM) adopted by synthetic aperture radar can be used to achieve three-dimensional real-time imaging. The imaging algorithm is as follows: ; ; Among them, is to convert the one-dimensional range direction imaging into three-dimensional coordinates (x0, y, z) by using the digital elevation model (DEM); x0 is the position of the target in the azimuth direction (corresponding to the direction); y and z are the positions of the target in the vertical direction; the equation of R represents that the straight-line distance R from the target to the radar is calculated from the three-dimensional coordinates.

[0040] Among them, in step S4, the real-time imaging of the pitch section of the high-risk area is obtained in real time, specifically including: (1) Obtain the one-dimensional range imaging in the range direction under the azimuth angle corresponding to the high-risk area in real time.

[0041] (2)Determine the real-time imaging of the pitch section of the high-risk area based on the distance to the DEM map corresponding to the one-dimensional imaging and the high-risk area.

[0042] If a high-risk area is found in the dynamic wide-area scanning step, the radar antenna can be directly pointed to the high-risk azimuth at this time for local fixed-point monitoring to achieve real-time imaging of the pitch section under this azimuth pointing. The specific real-time imaging method steps for the real-time imaging of the pitch section under this azimuth pointing refer to the specific imaging method steps in step S2 above.

[0043] In this application, the radar antenna has a narrow beam in the azimuth direction and has azimuth resolution. It only needs one-dimensional imaging in the distance direction and does not need to synthesize in the azimuth direction first and then perform two-dimensional imaging like a synthetic aperture antenna. It can not only achieve a large coverage range but also achieve local real-time imaging monitoring. In daily monitoring, when no high-risk area is found, the radar antenna only needs to perform one-dimensional distance imaging at each azimuth angle, and after the distance imaging, combined with the DEM map, it can achieve wide-area three-dimensional real-time imaging of the entire slope area. If a high-risk area is found in the dynamic wide-area scanning step, the radar antenna can be directly pointed to the high-risk azimuth at this time and combined with the DEM map to achieve real-time imaging of the pitch section under this azimuth pointing, realizing local real-time imaging monitoring of the high-risk area.

[0044] Compared with traditional radars, this application has the following advantages: (1)Compared with the ground-based synthetic aperture radar, this application has the advantages of a wide pitch coverage range and real-time azimuth imaging (the deformation is obtained immediately when scanned).

[0045] (2)Compared with the parabolic two-dimensional mechanical scanning ground-based true aperture radar, this application only needs one-dimensional scanning and has the advantages of a short monitoring period, a large deformation rate range, and good coherence in monitoring ultra-steep slopes.

[0046] (3)Compared with the phased array form of the ground-based true aperture radar, it has the advantages of low cost and stable spatial resolution.

[0047] To verify the effectiveness of the slope radar antenna function of this application, this application provides an example of a slope radar antenna: The shaped reflector is 1.2 m wide and 0.6 m high in the horizontal direction, the horizontal center line focal length is 0.45 m, and the vertical center line focal length is 0.9 m. The three-dimensional radiation pattern obtained by the full-wave simulation of the slope radar antenna is as Figure 4 shown, Figure 4 in which B represents the three-dimensional radiation pattern, the simulation frequency is 15 GHz (the center frequency point of the Ku band), and the simulation results show that by using the radar antenna and imaging method proposed in this application, a radiation pattern with a narrow azimuth beam and a wide pitch beam is obtained. The pitch section radiation pattern is as Figure 5 shown, Figure 5Among them, the 3dB beam width reaches 60°, which is much higher than the pitch beam width of the synthetic aperture radar antenna. The azimuth cross-section pattern is as Figure 6 shown. Its main lobe is very narrow, achieving high spatial resolution, and the side lobes are very low (better than -35dB), which helps to suppress multipath interference.

[0048] In summary, the proposed corrugated cylindrical wave compact range based on the shaped reflector in this application has a lower low-frequency operating limit than the existing serrated cylindrical wave compact range, and is more conducive to the realization of the cylindrical wave compact range in terms of implementation cost, technical risk, anechoic chamber performance, etc. Especially for ultra-large cylindrical wave compact ranges, the benefits obtained by the corrugated cylindrical wave compact range scheme will be more obvious.

[0049] In an exemplary embodiment, a computer device is provided. The computer device can be a server or a terminal, and its internal structure diagram can be as Figure 7 shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O), and a communication interface. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored and the pitch-section real-time imaging of the high-risk area. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals through a network connection. When the computer program is executed by the processor, it realizes a real-time imaging method based on a slope radar antenna.

[0050] Those skilled in the art can understand that Figure 7 the structure shown in

[0051] is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements. In an exemplary embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory, and when the processor executes the computer program, the steps in the above method embodiments are realized.

[0052] In an exemplary embodiment, a computer program product is provided, including a computer program which, when executed by a processor, implements the steps in the above method embodiments.

[0053] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with relevant regulations.

[0054] Those of ordinary skill in the art can understand that all or part of the processes in the above method embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above method embodiments.

[0055] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0056] Specific examples are used in this article to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, based on the idea of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A slope radar antenna, characterized in that, The slope radar antenna includes: a shaped reflector and a feed source; the shaped reflector is in the shape of a first paraboloid in the horizontal direction; the shaped reflector is in the shape of a second paraboloid in the vertical direction; the opening direction of the first paraboloid faces the slope area to be monitored; the opening directions of the first paraboloid and the second paraboloid are opposite. The first paraboloid is used to focus the radar signal to form a narrow beam. The second paraboloid is used to diffuse the radar signal in the vertical direction to form a wide beam to cover the slope area to be monitored. The feed source is arranged at the focus of the first paraboloid and is used to transmit radar signals to the slope area to be monitored and receive the radar signals fed back from the slope area to be monitored.

2. The slope radar antenna according to claim 1, characterized in that The second paraboloid is used to diffuse the radar signal in the vertical direction to form a wide beam to cover the ultra-steep slope area with a height difference of kilometers.

3. The slope radar antenna according to claim 1, characterized in that The midline equation of the first paraboloid is: ； where F x is the focal length of the first paraboloid; x is the x-axis coordinate of a point on the midline of the first paraboloid; z1 is the vertical height of a point on the midline of the first paraboloid.

4. The slope radar antenna according to claim 1, wherein The midline equation of the second paraboloid is: ； Where F y is the focal length of the second paraboloid; y is the y-axis coordinate of a point on the median line of the second paraboloid; z2 is the vertical height of a point on the median line of the second paraboloid; H is the height of the shaped reflector; α and β are shaped control factors.

5. The slope radar antenna according to claim 4, wherein The shaped reflector is formed by sweeping the midline of the first paraboloid along the midline of the second paraboloid; adjust the parameters F y , H, α, β, and under the condition of the limited height of the reflector, shaped reflectors with different elevation beam widths can be obtained.

6. A real-time imaging method based on a slope radar antenna, characterized in that, The real-time imaging method based on the slope radar antenna includes: Real-time obtaining the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle; the one-dimensional range imaging is determined according to the radar signals received by the feed source of the slope radar antenna; the slope radar antenna adopts the slope radar antenna according to any one of claims 1 to 5. Determining the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle. Judging whether there is a high-risk area according to the wide-area three-dimensional real-time imaging at different times; the high-risk area refers to the slope area where the cumulative deformation error exceeds a preset value. If so, adjusting the azimuth angle of the slope radar antenna to the azimuth angle corresponding to the high-risk area, and real-time obtaining the pitch-section real-time imaging of the high-risk area to monitor the slope deformation of the high-risk area in real time. If not, returning to the step of "real-time obtaining the one-dimensional range imaging of the slope radar antenna corresponding to the slope area to be monitored at each azimuth angle".

7. The real-time imaging method based on a slope radar antenna according to claim 6, wherein Determining the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle, specifically including: Determining the one-dimensional range imaging at each azimuth angle. Determining the wide-area three-dimensional real-time imaging corresponding to the slope area to be monitored according to the one-dimensional range imaging at each azimuth angle and the DEM map corresponding to the slope area to be monitored.

8. The real-time imaging method based on a slope radar antenna according to claim 6, characterized in that Real-time obtaining the pitch-section real-time imaging of the high-risk area, specifically including: Real-time obtaining the range one-dimensional imaging at the azimuth angle corresponding to the high-risk area. Determining the pitch-section real-time imaging of the high-risk area according to the range one-dimensional imaging and the DEM map corresponding to the high-risk area.

9. A computer device, comprising: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the real-time imaging method based on the slope radar antenna according to any one of claims 6-8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the real-time imaging method based on the slope radar antenna according to any one of claims 6-8.

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