A ground scattering target preprocessing method and system

Abstract

This invention belongs to the field of data processing technology, and particularly relates to a method and system for preprocessing ground-based scattering targets. The method includes setting up a reflection beacon in the target area; determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon; selecting a corresponding interferometric processing algorithm based on the type; and preprocessing the reflected signal of the target area based on the actual location. By setting up a reflection beacon in the target area, identifying anomalous points in the reflected signal of the target area, the difficulty of analyzing the target area is reduced; determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon clarifies the actual location and type of the scattering target for subsequent data processing; and selecting a corresponding interferometric processing algorithm based on the type and preprocessing the reflected signal of the target area based on the actual location can eliminate interference from the scattering target in advance, improving the efficiency of processing the reflected signal of the target area.

Description

Technical Field

[0001] This invention belongs to the field of data processing technology, and in particular relates to a method and system for preprocessing ground scattering targets. Background Technology

[0002] Topographic data is used to describe the shape and properties of the ground and its appurtenances. It can provide suggestions for engineering construction, environmental monitoring, disaster prevention, and other fields, and has a wide range of applications.

[0003] In theory, topographic data can be discovered and recorded through on-site surveys, but this method is extremely inefficient and inaccurate. Currently, mainstream technologies for acquiring topographic data include aerial photography and remote sensing; these technologies measure the ground from the air, covering a wider area and increasing efficiency. However, these methods are susceptible to interference from terrain features such as hills, valleys, vegetation, rivers, and rock strata, resulting in complex data that differs significantly from surrounding measurements. This can lead to data distortion during processing, affecting the accuracy of the topographic data. Furthermore, improving accuracy requires combining multiple data processing methods, which in turn impacts data processing efficiency. Summary of the Invention

[0004] To address or improve the above problems, this invention provides a ground-based scattering target preprocessing method and system, the specific technical solution of which is as follows:

[0005] This invention provides a ground-based target preprocessing method, comprising: setting up a reflection beacon in the target area; determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon; selecting a corresponding interferometric processing algorithm according to the type; and preprocessing the reflection signal of the target area according to the actual location.

[0006] Preferably, the change in reflection properties is achieved by altering the reflective surface of the reflective beacon; correspondingly, the method further includes: changing the reflective surface according to the change in the scattering target.

[0007] Preferably, setting the reflective beacon in the target area includes: determining the number of beacons and the installation location based on the actual location and area of ​​the scattering target in the target area; and selecting the shape and material of the reflective surface based on the object properties of the scattering target.

[0008] Preferably, the scattering target includes a vegetation-covered area; correspondingly, changing the reflecting surface according to the change of the scattering target includes: determining the change of the scattering target according to time and vegetation type, so as to change the reflecting surface.

[0009] Preferably, determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflecting beacon includes: determining the actual location based on the number of beacons and the installation location; and determining the type based on the number of beacons and the reflection properties.

[0010] This invention provides a ground-based scattering target preprocessing system, comprising: a first unit for setting up a reflection beacon in a target area; a second unit for determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon; and a third unit for selecting a corresponding interferometric processing algorithm according to the type and preprocessing the reflection signal of the target area according to the actual location.

[0011] Preferably, the change in reflection properties is achieved by altering the reflective surface of the reflective beacon; correspondingly, the second unit is also configured to change the reflective surface according to the change in the scattering target.

[0012] Preferably, setting the reflective beacon in the target area includes: determining the number of beacons and the installation location based on the actual location and area of ​​the scattering target in the target area; and selecting the shape and material of the reflective surface based on the object properties of the scattering target.

[0013] Preferably, the scattering target includes a vegetation-covered area; correspondingly, changing the reflecting surface according to the change of the scattering target includes: determining the change of the scattering target according to time and vegetation type, so as to change the reflecting surface.

[0014] Preferably, determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflecting beacon includes: determining the actual location based on the number of beacons and the installation location; and determining the type based on the number of beacons and the reflection properties.

[0015] The beneficial effects of this invention are as follows: by setting up a reflection beacon in the target area and identifying the reflective signal outliers in the target area, the difficulty of analyzing the target area is reduced; by determining the installation location and reflection properties of the reflection beacon, the actual location and type of the scattering target can be determined, thus clarifying the actual location and type of the scattering target for subsequent data processing; by selecting the corresponding interferometry processing algorithm according to the type and preprocessing the reflective signal of the target area according to the actual location, interference from the scattering target can be eliminated in advance, improving the efficiency of processing the reflective signal of the target area. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the ground scattering target preprocessing method according to the present invention;

[0017] Figure 2 This is a schematic diagram of the ground scattering target preprocessing system according to the present invention.

[0018] Explanation of key figure labels:

[0019] 1-Unit 1, 2-Unit 2, 3-Unit 3. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0022] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] To address or improve the problems mentioned in the background, the present invention provides, as follows: Figure 1 A ground-based scattering target preprocessing method is shown, comprising: S1, setting up a reflection beacon in the target area; S2, determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon; S3, selecting a corresponding interferometric processing algorithm according to the type, and preprocessing the reflection signal of the target area according to the actual location.

[0025] The target area is the region to be analyzed. To obtain the corresponding terrain data, it is necessary to acquire corresponding measurement data. The main principles for acquiring measurement data include: acquiring images of the ground and then performing image processing to obtain the corresponding terrain data; or transmitting radio waves to the ground. Different terrains reflect radio waves differently, and the corresponding terrain data can be determined based on the waveform characteristics of the reflected radio waves. Image processing has the advantage of efficiency in identifying terrain data corresponding to specific ground targets, while radio wave recognition has the advantage of accurately grasping the terrain's undulations. This embodiment mainly focuses on the processing of reflected waves to improve processing efficiency and accuracy.

[0026] A reflective beacon is an object that can acquire and reflect radio waves, and its efficiency in reflecting radio waves is higher than that of ordinary ground. It also possesses its own identifying features, allowing it to be distinguished from other reflective beacons or ground surfaces by utilizing the characteristics of its reflected radio waves. By placing a reflective beacon in a target area, the reflected signal can be used to mark the attributes of a specific area within the target area.

[0027] The installation location of the reflecting beacon refers to its coordinates on the ground. The reflection attributes of the reflecting beacon are information obtained based on the characteristics of its reflected signal. In this embodiment, it is mainly used to describe the actual location and type of a specified area (i.e., the scattering target). The scattering target is a portion of the ground and / or ground appendages. Due to their inherent properties differing from surrounding objects, these objects cause signal variations or additional attenuation in the reflected signal. The actual location is the physical location on the ground. The type refers to the type of ground and / or ground appendages, such as vegetation, ponds, quarries, man-made objects, etc. In this embodiment, it is mainly used to explain their impact on the reflected signal; that is, different types of scattering targets have different effects on radio waves, resulting in various differences in the reflected signals.

[0028] Processing reflected signals necessitates corresponding data processing algorithms. Pre-selecting a suitable algorithm can improve processing efficiency. Specifically, data preprocessing can eliminate or reduce the influence of scattering targets, facilitating subsequent processing of reflected waves and the acquisition of terrain data. That is, selecting the appropriate interferometric processing algorithm (a specialized data processing algorithm used to eliminate or correct abnormal data; in this embodiment, it refers to the reflected signal from the scattering target) based on the type of reflected signal improves data processing capabilities. Preprocessing the reflected signal of the target area based on the actual location identifies the areas generating abnormal reflected signals and their corresponding data, facilitating processing using an interferometric algorithm. After eliminating the influence of scattering targets, processing the reflected signal of the target area yields the terrain data for that area.

[0029] By setting up reflective beacons in the target area and identifying anomalous points in the reflected signals, the difficulty of analyzing the target area is reduced. The installation location and reflection properties of the reflective beacons determine the actual location and type of the scattering target, enabling subsequent data processing. Selecting the appropriate interferometric processing algorithm based on the type and preprocessing the reflected signals from the target area according to the actual location allows for early exclusion of interference from scattering targets, improving the efficiency of processing the reflected signals from the target area.

[0030] The reflection properties are changed by altering the reflective surface of the reflective beacon; correspondingly, the method further includes changing the reflective surface according to the change in the scattering target.

[0031] A reflective beacon is a physical object with a specific shape; its surface facing the sky, capable of reflecting radio waves, is the reflector. Different shapes and materials of this reflector can produce reflected signals with varying characteristics. Similarly, by changing the shape and / or material of the reflector (e.g., changing the coating or adding a casing), the output reflected signal can be altered. Since scattering targets are not static, changing the reflector aims to adapt to variations in the scattering target. By modifying the reflection properties, the accuracy of subsequent signal processing can be improved.

[0032] The step of setting up reflective beacons in the target area includes: determining the number of beacons and the installation location based on the actual location and area of ​​the scattering target in the target area; and selecting the shape and material of the reflective surface based on the object properties of the scattering target.

[0033] The volume / area of ​​scattering targets can be very large. To accurately describe the properties of scattering targets, different numbers and locations of installations can be used. Specifically, based on the number and location of reflected signals corresponding to the reflecting beacons in the reflected signals, and combined with existing matching tables, the corresponding real-world location and area can be output. Furthermore, changing the shape and material of the reflecting surface can alter the signal characteristics of the reflected signals. By using this alteration and existing matching tables, the real-world location, area, and properties of the target area can be determined.

[0034] The scattering target includes a vegetation-covered area; correspondingly, changing the reflecting surface according to the change of the scattering target includes: determining the change of the scattering target according to time and vegetation type, so as to change the reflecting surface.

[0035] This embodiment primarily focuses on vegetation because vegetation reflection signals are complex, and the accuracy of terrain data analysis based on image recognition is not high due to the obstruction of leaves. However, vegetation may change with the seasons, exhibiting new leaves, lush growth, yellowing, and leaf fall, all of which result in different characteristics of the reflected signals. Furthermore, different types of vegetation exhibit changes at different times. By determining the changes in the scattering target based on time and vegetation type, and altering the reflecting surface accordingly, and by selecting an appropriate processing algorithm based on the changes in the reflecting surface / reflection properties, the processing capability for vegetation reflection signals can be improved.

[0036] Determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflecting beacon includes: determining the actual location based on the number of beacons installed and the installation location; and determining the type based on the number of beacons installed and the reflection properties.

[0037] A matching table can be set up so that different installation quantities / locations can represent different information. Specifically, the actual location of the scattering target can be determined based on the installation quantity and the installation location; and the type of scattering target can be determined based on the installation quantity and the reflection properties.

[0038] This invention provides, for example Figure 2 A ground-based scattering target preprocessing system is shown, comprising: a first unit 1 for setting up a reflection beacon in the target area; a second unit 2 for determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflection beacon; and a third unit 3 for selecting a corresponding interferometric processing algorithm according to the type and preprocessing the reflection signal of the target area according to the actual location.

[0039] By setting up reflective beacons in the target area and identifying anomalous points in the reflected signals, the difficulty of analyzing the target area is reduced. The installation location and reflection properties of the reflective beacons determine the actual location and type of the scattering target, enabling clear identification of the target's location and type for subsequent data processing. Selecting the appropriate interferometry algorithm based on the type and preprocessing the reflected signals from the target area according to the actual location allows for early exclusion of interference from scattering targets, improving the efficiency of processing the reflected signals from the target area.

[0040] The reflection properties are changed by altering the reflective surface of the reflective beacon; correspondingly, the second unit is also used to change the reflective surface according to the change of the scattering target.

[0041] The step of setting up reflective beacons in the target area includes: determining the number of beacons and the installation location based on the actual location and area of ​​the scattering target in the target area; and selecting the shape and material of the reflective surface based on the object properties of the scattering target.

[0042] The scattering target includes a vegetation-covered area; correspondingly, changing the reflecting surface according to the change of the scattering target includes: determining the change of the scattering target according to time and vegetation type, so as to change the reflecting surface.

[0043] Determining the actual location and type of the scattering target based on the installation location and reflection properties of the reflecting beacon includes: determining the actual location based on the number of beacons installed and the installation location; and determining the type based on the number of beacons installed and the reflection properties.

[0044] Those skilled in the art will recognize that the units of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components of each example have been generally described in terms of function in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0045] In the embodiments provided in this application, it should be understood that the division of units is only a logical functional division. In actual implementation, there may be other division methods, such as multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A ground scattering target pre-processing method, characterized in that, The method comprises: setting a reflective beacon in a target area; determining the real position and type of the scattering target according to the installation position and reflection attribute of the reflective beacon; selecting a corresponding interference processing algorithm according to the type and pre-processing the reflection signal of the target area according to the real position.

2. The ground scatter target pre-processing method of claim 1, wherein, The reflection attribute is changed by changing the reflection surface of the reflective beacon. Correspondingly, the method further comprises: changing the reflection surface according to the change of the scattering target.

3. The ground scatter target pre-processing method of claim 2, wherein, The setting of the reflective beacon in the target area comprises: determining the installation quantity and installation position according to the real position and area of the scattering target in the target area; selecting the shape and material of the reflection surface according to the object attribute of the scattering target.

4. The ground scatter target pre-processing method of claim 2, wherein, The scattering target comprises a vegetation covered area. Correspondingly, the changing of the reflection surface according to the change of the scattering target comprises: determining the change of the scattering target according to time and vegetation type to change the reflection surface.

5. The ground scatter target pre-processing method of claim 3, wherein, The determination of the real position and type of the scattering target according to the installation position and reflection attribute of the reflective beacon comprises: determining the real position according to the installation quantity and installation position; determining the type according to the installation quantity and reflection attribute.

6. A ground scatter target pre-processing system, characterized by, The method comprises: a first unit for setting a reflective beacon in a target area; a second unit for determining the real position and type of the scattering target according to the installation position and reflection attribute of the reflective beacon; a third unit for selecting a corresponding interference processing algorithm according to the type and pre-processing the reflection signal of the target area according to the real position.

7. The ground scatter target pre-processing system of claim 6, wherein, The reflection attribute is changed by changing the reflection surface of the reflective beacon. Correspondingly, the second unit is further configured to change the reflection surface according to the change of the scattering target.

8. The ground scatter target pre-processing system of claim 7, wherein, The setting of the reflective beacon in the target area comprises: determining the installation quantity and installation position according to the real position and area of the scattering target in the target area; selecting the shape and material of the reflection surface according to the object attribute of the scattering target.

9. The ground scatter target pre-processing system of claim 7, wherein, The scattering target comprises a vegetation covered area. Correspondingly, the changing of the reflection surface according to the change of the scattering target comprises: determining the change of the scattering target according to time and vegetation type to change the reflection surface.

10. The ground scatter target pre-processing system of claim 8, wherein, The determination of the real position and type of the scattering target according to the installation position and reflection attribute of the reflective beacon comprises: determining the real position according to the installation quantity and installation position; determining the type according to the installation quantity and reflection attribute.

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