Method, device, equipment and medium for detecting detection capability index of laser ranging equipment

Abstract

The present invention relates to the field of space debris monitoring and early warning, and provides a detection method, device, equipment and medium for detecting a detection capability index of a laser ranging device. The method comprises: obtaining detection parameters of the laser ranging device, and calculating a theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters; selecting a plurality of targets to be measured; tracking and observing each target to be measured by the laser ranging device, obtaining laser ranging data, and calculating an actual detection distance of each target to be measured from the laser ranging device according to the laser ranging data; calculating a target equivalent size of each target to be measured at the reference distance based on the actual detection distance; and judging whether the theoretical detection index is qualified based on the target equivalent size of each target to be measured.

Description

Technical Field

[0001] The present invention relates to the field of space debris monitoring and early warning, and in particular to a detection method, device, equipment and storage medium for a detection capability index of a laser ranging device. Background Art

[0002] Space debris refers to small natural or man-made objects in the Earth's orbit, ranging in size from microns to tens of meters, including abandoned satellites, rocket wreckage, crash debris, old parts, etc. With the increase in space activities, the amount of space debris is increasing year by year, posing an increasing threat to orbital facilities, spacecraft and astronauts. Therefore, it is extremely important to establish an effective space debris monitoring and management mechanism.

[0003] Space debris laser ranging is a technology used to monitor space debris with high precision. Laser ranging technology provides a high-precision means of environmental perception, which can determine the distance of a target by sending a short pulse of laser to it and recording the reflected signal. Compared with other detection methods, such as radar and optical observation, laser ranging technology has higher resolution and accuracy, and can effectively detect small, low-reflectivity targets. Therefore, space debris laser ranging technology has become one of the main methods for monitoring objects such as spacecraft and space debris. It also provides important support for tasks such as space debris cleanup and orbital safety management. For many space debris laser ranging monitoring devices, how to detect and determine the detection capability of the equipment is of great significance to the demonstration of projects in the field of laser ranging, the proposal of indicators and the acceptance of equipment. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above problems, the present invention provides a detection method, device, equipment and storage medium for the detection capability index of a laser ranging device, so as to at least partially solve the technical problems such as the insufficient effectiveness and reliability of the detection capability index of the laser ranging device in detection and judgment.

[0006] (II) Technical solution

[0007] The present invention provides a detection capability index detection method of a laser ranging device, comprising: acquiring detection parameters of the laser ranging device, and calculating a theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters; selecting a plurality of targets to be measured; tracking and observing each of the targets to be measured by the laser ranging device, acquiring laser ranging data, and calculating an actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data; calculating a target equivalent size of each of the targets to be measured at the reference distance based on the actual detection distance; and judging whether the theoretical detection index is qualified based on the target equivalent size of each of the targets to be measured.

[0008] According to an embodiment of the present invention, the tracking and observing of each of the targets to be measured by the laser ranging device to obtain laser ranging data, and calculating the actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data includes: performing continuous laser ranging observation of the target to be measured in a tracking mode by the laser ranging device within a preset time period to obtain laser ranging data of the target to be measured in each transit arc segment; and calculating the actual detection distance of each of the targets to be measured from the laser ranging device point by point based on the laser ranging data in each transit arc segment.

[0009] According to an embodiment of the present invention, the method further includes: classifying the target equivalent size of each target to be measured according to different preset threshold intervals; counting the number of the transit arc segments successfully observed in each of the threshold intervals, and obtaining the observation success rate of the laser ranging device in different threshold intervals.

[0010] According to an embodiment of the present invention, judging whether the theoretical detection index is qualified based on the target equivalent size of each of the targets to be measured includes: comparing the target equivalent size of each of the targets to be measured with the theoretical detection capability index; for a target to be measured whose target equivalent size is less than or equal to the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a first preset number of times, and, for a target to be measured whose target equivalent size is greater than the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a second preset number of times, the theoretical detection index is qualified.

[0011] According to an embodiment of the present invention, the detection parameters include at least the transmitting aperture, receiving aperture, laser power, detector quantum efficiency, system transmitting efficiency and receiving efficiency of the laser ranging device.

[0012] According to an embodiment of the present invention, the selection of the target to be measured includes: based on a pre-constructed space target information library, at least obtaining the shape, reflection type and reflection area of ​​each target in the space target information library, so as to select multiple targets to be measured with preset shapes, reflection areas within a preset range and non-cooperative.

[0013] According to an embodiment of the present invention, the method further comprises: adjusting the relative position between the laser beam emitted by the laser ranging device and the target to be measured, so as to improve the echo rate of the laser beam.

[0014] The second aspect of the present invention provides a detection device for a detection capability index of a laser ranging device, comprising: an acquisition module, used to acquire detection parameters of the laser ranging device, and calculate the theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters; a selection module, used to select multiple targets to be measured; a first calculation module, used to track and observe each of the targets to be measured through the laser ranging device, acquire laser ranging data, and calculate the actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data; a second calculation module, used to calculate the target equivalent size of each of the targets to be measured at the reference distance based on the actual detection distance; and a judgment module, used to judge whether the theoretical detection index is qualified based on the target equivalent size of each of the targets to be measured.

[0015] The third aspect of the present invention provides an electronic device, comprising: one or more processors; a storage device for storing one or more computer programs, when the one or more programs are executed by the one or more processors, the one or more processors execute the detection capability indicator detection method of the laser ranging equipment.

[0016] The fourth aspect of the present invention also provides a computer-readable storage medium having executable instructions stored thereon, which, when executed by a processor, causes the processor to execute the method for detecting the detection capability indicator of the laser ranging device.

[0017] (III) Beneficial effects

[0018] The detection method, device, equipment and storage medium of the detection capability index of the laser ranging equipment provided by the present invention can conduct a comprehensive and systematic performance test on the space debris laser ranging equipment by establishing a scientific and reasonable detection method to verify whether its design meets the requirements, and at the same time find its existing problems and shortcomings, and provide data support for subsequent improvements and optimizations. In addition, the method is simple and easy to implement, and can conveniently and quickly detect the detection capability of related laser ranging equipment to ensure the reliability of the equipment. In addition, the establishment of the detection method is also helpful to promote the formulation and mutual recognition of industry standards, improve the standardization level and market competitiveness of space debris laser ranging technology, and is of great significance to ensuring the safety and sustainable development of the space field. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For a more complete understanding of the present invention and its advantages, reference will now be made to the following description taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The flowchart of the detection method of the detection capability index of the laser ranging device provided by the embodiment of the present invention is schematically shown;

[0021] Figure 2 A structural block diagram schematically shows a detection device for a detection capability indicator of a laser ranging device provided in an embodiment of the present invention;

[0022] Figure 3 The hardware structure diagram of an electronic device is schematically shown. DETAILED DESCRIPTION

[0023] Below, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of embodiments of the present invention. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of concepts of the present invention.

[0024] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0025] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0026] Some block diagrams and / or flow charts are shown in the accompanying drawings. It should be understood that some blocks or combinations thereof in the block diagrams and / or flow charts may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that these instructions, when executed by the processor, may create a device for implementing the functions / operations described in these block diagrams and / or flow charts.

[0027] Therefore, the technology of the present invention can be implemented in the form of hardware and / or software (including firmware, microcode, etc.). In addition, the technology of the present invention can take the form of a computer program product on a computer-readable medium storing instructions, which can be used by an instruction execution system or in combination with an instruction execution system. In the context of the present invention, a computer-readable medium can be any medium that can contain, store, transmit, propagate or transmit instructions. For example, a computer-readable medium can include, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device, device or propagation medium. Specific examples of computer-readable media include: magnetic storage devices, such as magnetic tape or hard disk (HDD); optical storage devices, such as compact disk (CD-ROM); memory, such as random access memory (RAM) or flash memory; and / or wired / wireless communication links.

[0028] like Figure 1 As shown, the flow chart of the detection method of the detection capability index of the laser ranging device includes S1~S5.

[0029] In operation S1, detection parameters of a laser ranging device are acquired, and a theoretical detection capability index of the laser ranging device at a reference distance is calculated according to the detection parameters.

[0030] Among them, the detection parameters include at least the transmitting aperture, receiving aperture, laser power, detector quantum efficiency, system transmitting efficiency and receiving efficiency of the laser ranging equipment.

[0031] The detection capability index of the device is calculated using the following formula using the laser ranging device parameters.

[0032]

[0033] Where n0 is the average number of photoelectrons detected in the laser ranging system, λ is the laser wavelength, is the quantum efficiency of the photon detector, h is Planck's constant, c is the speed of light, E t is the laser output power, A r is the effective area of ​​the receiving system, ρ is the albedo of space debris, S is the target launch cross-sectional area, is the angle between the normal of the target reflection surface and the laser emission direction, is the divergence angle of the laser beam, R is the relative distance between the target and the telescope, T is the atmospheric transmittance parameter, T 2 is the two-way atmospheric transmittance, is the transmission system efficiency, For receiving system efficiency, is the attenuation factor. It can be seen that the average number of photoelectrons detected in the laser ranging system is inversely proportional to the fourth power of the distance, proportional to the target reflection area, and proportional to the laser output power. In operation S2, multiple targets to be measured with known reflection areas and track information are selected.

[0034] Specifically, based on a pre-constructed space target information library, at least the shape, reflection type and reflection area of ​​each target in the space target information library are obtained to select multiple targets to be tested that have preset shapes (such as spheres), reflection areas within a preset range and are non-cooperative and meet the index requirements of the equipment to be tested.

[0035] In operation S3, each of the targets to be measured is tracked and observed by the laser ranging device to obtain laser ranging data, and the actual detection distance of each of the targets to be measured from the laser ranging device is calculated based on the laser ranging data.

[0036] After a plurality of targets to be measured are selected, operations S31 to S32 are performed.

[0037] In operation S31, the laser ranging device continuously performs laser ranging observation on the target to be measured in a tracking mode within a preset time period to obtain laser ranging data of the target to be measured in each transit arc segment.

[0038] When observing the selected target to be measured, the cataloged orbital elements of space debris are used for observation prediction, and observation is carried out according to the observation prediction to obtain laser ranging data. For example, a ranging telescope is used to conduct continuous laser ranging observations on the target to be tested in tracking mode to obtain ranging data of the target's transit arc. A transit arc refers to a visible or trackable trajectory segment of a spacecraft (such as a satellite, space station, etc.) relative to a certain observation point (such as a ground observation station, observatory, etc.) within a specific time period. When observing the same target to be measured, multiple transit arcs can be obtained.

[0039] In operation S32, based on the laser ranging data of each transit arc, the actual detection distance of each target to be measured from the laser ranging device is calculated point by point, wherein "point" refers to a point with specific coordinates or position identification determined on each transit arc during the ranging process.

[0040] From the range data of different target transit arcs, the flight time of the laser pulse from the observatory to the space debris is extracted arc by arc and point by point. , unit is s, according to the formula:

[0041]

[0042] Calculate the actual detection distance R, where c is the speed of light, c=299792458m / s.

[0043] In operation S4, based on the actual detection distance, the target equivalent size of each of the targets to be detected at the reference distance is calculated.

[0044] According to the size and distance of the selected target to be measured, the equivalent diameter (equivalent size) of the target at the reference distance is calculated by the equivalent formula. Specifically, according to the ranging data of the target transit arc segment that has been successfully measured, that is, according to the calculated distance R, the equivalent diameter of the target at the reference distance is calculated point by point according to the equivalent diameter calculation formula, and the target equivalent size of each point is obtained, and compared with the detection size D0 required by the laser ranging equipment index to determine whether the data of this section meets the index requirements.

[0045] Taking the reference detection distance R0 and laser output power E0 as the standard, the detected target area is calculated to be equivalent to the standard situation. The target equivalent size is calculated by the following formula:

[0046]

[0047] Where S is the reflection cross-sectional area of ​​space debris, unit is m 2 ; R is the relative distance between the target and the telescope, in km; R0 is the equivalent reference detection distance, in km; E is the actual output power of the laser, in W; E0 is the reference laser power, in W.

[0048] In operation S5, based on the target equivalent size of each of the targets to be detected, it is determined whether the theoretical detection index is qualified.

[0049] Specifically, operations S51 to S52 are performed.

[0050] In operation S51, the target equivalent size of each target to be detected is compared with a theoretical detection capability index.

[0051] In operation S52, for the target to be measured whose equivalent size is less than or equal to the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a first preset number of times, and for the target to be measured whose equivalent size is greater than the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a second preset number of times, the theoretical detection index is qualified.

[0052] In some exemplary embodiments, the ranging data of the ranging arc segments are extracted one by one for calculation, and if the equivalent diameter calculation result of the target corresponding to a ranging arc segment has a value less than or equal to D0, then the single limit index test is determined to be qualified. Wherein D0 is the detection size required by the laser ranging equipment index.

[0053] The qualified criterion is: for targets with equivalent diameter ≤ D0, the number of successful ranging is not less than the first preset number (such as 10 times). And for targets with equivalent diameter ≥ D0, the number of successful ranging is not less than the second preset number (30 times). Then it is judged that the theoretical detection index is qualified, otherwise it is unqualified.

[0054] It is understandable that the detection method of the detection capability index of the laser ranging equipment provided by the embodiment of the present invention can more accurately judge and ensure the performance and reliability of the space debris laser ranging equipment. By establishing a scientific and reasonable detection method, a comprehensive and systematic performance test can be carried out on the space debris laser ranging equipment to verify whether its design meets the requirements, and at the same time, the problems and shortcomings existing therein can be found, so as to provide data support for subsequent improvements and optimizations. In addition, the method is simple and easy to implement, and can conveniently and quickly detect the detection capability of the relevant laser ranging equipment to ensure the reliability of the equipment. In addition, the establishment of the detection method will also help promote the formulation and mutual recognition of industry standards, improve the standardization level and market competitiveness of space debris laser ranging technology, and is of great significance for ensuring the safety and sustainable development of the space field.

[0055] In an embodiment of the present invention, the method further includes: classifying the target equivalent size of each target to be measured according to different preset threshold intervals; counting the number of transit arcs successfully observed in each threshold interval to obtain the observation success rate of the laser ranging device in different threshold intervals.

[0056] According to the performance characteristics and actual needs of the space debris laser ranging equipment, a series of reasonable equivalent size threshold intervals are set to distinguish debris targets of different sizes and evaluate the detection capability of the equipment under these different size targets. For each set threshold interval, the number of transit arcs successfully observed in the interval is accumulated. By comparing the number of successful observations in different threshold intervals, the detection capability of the laser ranging equipment under targets of different sizes, that is, in different threshold intervals, can be evaluated. Generally speaking, the more successful observations, the stronger the detection capability of the equipment in the threshold interval. If it is found that the observation success rate of a certain interval is significantly lower than that of other intervals, the characteristics of the target in the interval, the observation environment, and equipment settings can be further investigated to find out the possible reasons and take corresponding improvement measures.

[0057] It should be noted that when counting the number of successfully observed transit arcs within each threshold interval, strict definitions and standards can be used to determine whether the observation is successful. For example, check the integrity and accuracy of the observation data and whether it meets the preset observation conditions (such as signal strength, signal-to-noise ratio, etc.).

[0058] It is understandable that by setting different threshold ranges, we can understand the performance of the equipment under different conditions, including the detection capability, detection accuracy and stability of debris targets of different sizes, which is of great significance for equipment performance optimization, observation strategy formulation, scientific research and application.

[0059] In an embodiment of the present invention, the method further includes: adjusting the relative position between the laser beam emitted by the laser ranging device and the target to be measured, so as to improve the echo rate of the laser beam.

[0060] In the detection method of the detection capability index of the laser ranging equipment provided in the embodiment of the present invention, the observation control requirements for the laser ranging equipment include: observing according to the observation plan to obtain laser ranging data; during the observation process, the elevation angle should be ensured to be ≥45°, and the target orbit altitude range should not exceed the set threshold range (for example, 100-2000km); during the observation process, the relative position of the laser beam and the target should be adjusted to maximize the echo rate.

[0061] Example 1

[0062] Taking a laser ranging telescope with a 1.2m aperture and a laser power of 200W as an example, assuming that the detector quantum efficiency is 20%, the emission efficiency is 85%, and the receiving system efficiency is 66%, the detection capability index of the laser ranging equipment is: it can detect space debris of 15cm in size at a distance of 1000km.

[0063] Select the list of ball targets to be tested.

[0064] Selected ball target list

[0065]

[0066] According to the laser ranging data, the distance between the target and the laser ranging device during actual detection is calculated.

[0067] Example of measured data of space debris laser ranging

[0068]

[0069] Based on the actual detection distance in the table above, calculate the equivalent size of the selected spherical target at a distance of 1000km.

[0070] Target Equivalent Size for Selected Ball Targets

[0071]

[0072] The ranging data of the ranging arc segments are extracted one by one for calculation. If the equivalent diameter calculation result of the target corresponding to a ranging arc segment has a value less than or equal to D0=15cm, the single limit index test is determined to be qualified. Where D0 is the detection size required by the laser ranging equipment index, and in this embodiment, the value D0=15cm.

[0073] For targets with equivalent diameter ≤ D0, the successful distance measurement shall be no less than 10 times. And for targets with equivalent diameter ≥ D0, the successful distance measurement shall be no less than 30 times. Then it is judged as qualified, otherwise unqualified.

[0074] like Figure 2 As shown, the detection device 200 for the detection capability index of the laser ranging device of this embodiment includes an acquisition module 201, a selection module 202, a first calculation module 203, a second calculation module 204 and a judgment module 205.

[0075] The acquisition module 201 is used to acquire detection parameters of the laser ranging device, and calculate the theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters.

[0076] The selection module 202 is used to select a plurality of targets to be detected.

[0077] The first calculation module 203 is used to track and observe each of the targets to be measured by the laser ranging device, obtain laser ranging data, and calculate the actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data.

[0078] The second calculation module 204 is used to calculate the target equivalent size of each of the targets to be detected at the reference distance based on the actual detection distance.

[0079] The judgment module 205 is used to judge whether the theoretical detection index is qualified based on the target equivalent size of each target to be detected.

[0080] It is understandable that the acquisition module 201, the selection module 202, the first calculation module 203, the second calculation module 204 and the judgment module 205 can be combined in one module, or any one of the modules can be split into multiple modules. Alternatively, at least part of the functions of one or more of these modules can be combined with at least part of the functions of other modules and implemented in one module. According to an embodiment of the present invention, at least one of the acquisition module 201, the selection module 202, the first calculation module 203, the second calculation module 204 and the judgment module 205 can be at least partially implemented as a hardware circuit, such as a field programmable gate array (FPGA), a programmable logic array (PLA), a system on a chip, a system on a substrate, a system on a package, an application specific integrated circuit (ASIC), or can be implemented in hardware or firmware such as any other reasonable way of integrating or packaging the circuit, or in a suitable combination of software, hardware and firmware. Alternatively, at least one of the acquisition module 201, the selection module 202, the first calculation module 203, the second calculation module 204 and the determination module 205 can be at least partially implemented as a computer program module, and when the program is executed by a computer, the function of the corresponding module can be executed.

[0081] Figure 3 The structure block diagram of an electronic device provided by an embodiment of the present invention is schematically shown.

[0082] like Figure 3 As shown, the electronic device described in this embodiment includes: the electronic device 300 includes a processor 310 and a computer readable storage medium 320. The electronic device 300 can execute the above reference Figure 1 Describes the method to achieve detection of specific operations.

[0083] Specifically, the processor 310 may include, for example, a general-purpose microprocessor, an instruction set processor and / or a related chipset and / or a dedicated microprocessor (e.g., an application-specific integrated circuit (ASIC)), etc. The processor 310 may also include an onboard memory for cache purposes. The processor 310 may be a processor for executing reference Figure 1 The described method flow according to the embodiment of the present invention may be a single processing unit or multiple processing units for different actions.

[0084] Computer readable storage medium 320, for example, can be any medium capable of containing, storing, conveying, propagating or transmitting instructions. For example, readable storage media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices, devices or propagation media. Specific examples of readable storage media include: magnetic storage devices, such as magnetic tapes or hard disks (HDDs); optical storage devices, such as compact disks (CD-ROMs); memory, such as random access memory (RAM) or flash memory; and / or wired / wireless communication links.

[0085] The computer readable storage medium 320 may include a computer program 321, which may include code / computer executable instructions, which when executed by the processor 310 causes the processor 310 to perform, for example, the above-mentioned combination Figure 1 The described method sequences and any variations thereof.

[0086] The computer program 321 may be configured to have, for example, computer program codes including computer program modules. For example, in an exemplary embodiment, the codes in the computer program 321 may include one or more program modules, for example, 321A, 321B, ... It should be noted that the division method and number of modules are not fixed, and those skilled in the art may use appropriate program modules or program module combinations according to actual conditions. When these program module combinations are executed by the processor 310, the processor 310 may execute, for example, the above combination of Figure 1 The described method sequences and any variations thereof.

[0087] According to an embodiment of the present invention, at least one of the acquisition module 201, the selection module 202, the first calculation module 203, the second calculation module 204 and the judgment module 205 can be implemented as a reference. Figure 3 The computer program modules described herein, when executed by the processor 310, can implement the corresponding operations described above.

[0088] The present invention also provides a computer-readable medium, which may be included in the device / apparatus / system described in the above embodiment; or may exist independently without being assembled into the device / apparatus / system. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed, the method according to the embodiment of the present invention is implemented.

[0089] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present invention may be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features described in the various embodiments of the present invention may be combined and / or combined in various ways. All of these combinations and / or combinations fall within the scope of the present invention.

[0090] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting a detection capability index of a laser ranging device, characterized in that: include: Acquiring detection parameters of a laser ranging device, and calculating a theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters; Select multiple targets to be tested; Tracking and observing each of the targets to be measured by the laser ranging device to obtain laser ranging data, and calculating the actual detection distance of each of the targets to be measured from the laser ranging device based on the laser ranging data; Based on the actual detection distance, calculating the target equivalent size of each of the targets to be detected at the reference distance; Based on the target equivalent size of each of the targets to be measured, judging whether the theoretical detection capability index is qualified; specifically comprising: comparing the target equivalent size of each of the targets to be measured with the theoretical detection capability index, wherein the theoretical detection capability index is the detection size required by the laser ranging equipment at the reference distance; for targets to be measured whose target equivalent size is less than or equal to the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a first preset number of times, and, for targets to be measured whose target equivalent size is greater than the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a second preset number of times, the theoretical detection capability index is qualified.

2. The method according to claim 1, characterized in that The step of tracking and observing each of the targets to be measured by the laser ranging device to obtain laser ranging data, and calculating the actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data comprises: Performing continuous laser ranging observation on the target to be measured in a tracking mode by using the laser ranging device within a preset time period to obtain laser ranging data of the target to be measured in each transit arc segment; Based on the laser ranging data in each of the transit arcs, the actual detection distance of each of the targets to be measured from the laser ranging device is calculated point by point.

3. The method according to claim 2, characterized in that The method further comprises: Classifying the target equivalent size of each target to be measured according to different preset threshold ranges; The number of the transit arc segments successfully observed in each threshold interval is counted to obtain the observation success rate of the laser ranging device in different threshold intervals.

4. The method according to claim 1, characterized in that The detection parameters at least include the transmitting aperture, receiving aperture, laser power, detector quantum efficiency, system transmitting efficiency and receiving efficiency of the laser ranging equipment.

5. The method according to claim 1, characterized in that: The selected target to be measured includes: Based on a pre-constructed space target information library, at least the shape, reflection type and reflection area of ​​each target in the space target information library are obtained to select multiple targets to be measured with preset shapes, reflection areas within a preset range and non-cooperative.

6. The method according to claim 1, characterized in that The method further comprises: The relative position between the laser beam emitted by the laser ranging device and the target to be measured is adjusted to increase the echo rate of the laser beam.

7. A detection device for the detection capability index of a laser ranging device, characterized in that: The device comprises: An acquisition module, used to acquire detection parameters of a laser ranging device, and calculate a theoretical detection capability index of the laser ranging device at a reference distance according to the detection parameters; A selection module is used to select multiple targets to be tested; A first calculation module is used to track and observe each of the targets to be measured by the laser ranging device, obtain laser ranging data, and calculate the actual detection distance of each of the targets to be measured from the laser ranging device according to the laser ranging data; A second calculation module is used to calculate the target equivalent size of each of the targets to be detected at the reference distance based on the actual detection distance; A judgment module is used to judge whether the theoretical detection capability index is qualified based on the target equivalent size of each target to be measured; specifically comprising: comparing the target equivalent size of each target to be measured with the theoretical detection capability index, wherein the theoretical detection capability index is the detection size required by the laser ranging device at the reference distance; for a target to be measured whose target equivalent size is less than or equal to the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a first preset number of times, and, for a target to be measured whose target equivalent size is greater than the theoretical detection capability index, when the number of successful acquisitions of the actual detection distance of the target to be measured is greater than or equal to a second preset number of times, the theoretical detection capability index is qualified.

8. An electronic device comprising: one or more processors; a storage device for storing one or more computer programs, It is characterized in that when the one or more programs are executed by the one or more processors, the one or more processors execute the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having executable instructions stored thereon, characterized in that: When the instruction is executed by a processor, the processor executes the method according to any one of claims 1 to 6.

Images