Unmanned aerial vehicle interception system and interception method
By integrating microwave radar, single-photon lidar, and infrared detection into an interception system, the problem of intercepting low-altitude drones has been solved, achieving efficient and stable interception results, expanding the interception range, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing technologies are insufficient to effectively intercept low-flying drones, especially due to their small size, low flight altitude, and difficulty in radar tracking, as well as the difficulty in successfully jamming electronic interference. The existing interception methods are not ideal.
An interception system integrating microwave radar, single-photon lidar, and infrared detection is used. Microwave scanning provides initial positioning, single-photon lidar provides precise positioning and imaging, and infrared detection combined with data processing controls the interceptor drone to intercept it. The laser echo signal guides the interceptor drone to accelerate and collide with or launch the interceptor at close range.
It achieves efficient interception of low-altitude drones, has anti-interference capabilities, expands the interception range, reduces costs, and has stable interception effects, maintaining target tracking and interception in complex environments.
Smart Images
Figure CN121804276A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of radar and unmanned aerial vehicle, in particular to an unmanned aerial vehicle interception system and method based on single-photon laser radar guidance. BACKGROUND
[0002] UAV (Unmanned aerial vehicle) is the abbreviation of "unmanned aerial vehicle", commonly known as unmanned aerial vehicle, which is a kind of small low-altitude high-speed aircraft remotely controlled by a series of pre-written programs or an operator. The unmanned aerial vehicle technology has been widely used in the fields of patrol, aerial photography, postal service, etc. At the same time, due to its small size and relatively low flight height, it is difficult to be tracked by radar and is easy to be used to fly into some areas to cause security threats. Therefore, how to more effectively intercept unmanned aerial vehicles has gradually become an important issue in the security field. SUMMARY
[0003] Therefore, in order to at least partially solve at least one of the above-mentioned technical problems, the present disclosure provides an unmanned aerial vehicle interception system and method. In order to achieve the above-mentioned purpose, the technical solution of the present disclosure is as follows:
[0004] According to an embodiment of the present disclosure, an unmanned aerial vehicle interception system is provided, comprising a microwave radar unit, a single-photon laser radar unit, an infrared unit, a data processing unit, a control unit, a turntable, and an interception unmanned aerial vehicle, wherein: the microwave radar unit is configured to emit microwave signals to scan a target area to detect a flying object entering the target area, and to detect and receive microwave echo signals reflected by the flying object to determine a preliminary position of the flying object; the single-photon laser radar unit is configured to emit laser irradiation to the flying object according to the preliminary position, and to detect and receive single-photon echo signals reflected by the flying object for single-photon detection; the infrared unit is configured to receive infrared radiation signals of the flying object, and to perform infrared detection on the flying object; the data processing unit is configured to obtain characteristic information of the flying object according to the single-photon echo signals and the infrared radiation signals of the flying object obtained by detection; the control unit is configured to control the turntable, the single-photon laser radar unit and the infrared unit to continuously track and detect the flying object according to the characteristic information of the flying object, and to share the characteristic information of the flying object to the interception unmanned aerial vehicle in real time, instruct and guide the interception unmanned aerial vehicle to intercept the target flying object.
[0005] According to the embodiment of the present disclosure, when the distance between the interception unmanned aerial vehicle and the target flying object is less than a set distance, the interception unmanned aerial vehicle can directly receive laser echo signals after the laser irradiation to the target flying object, and obtain a light spot image and / or light spot intensity of the target flying object according to the laser echo signals, so as to realize that the interception unmanned aerial vehicle accelerates to collide with the target flying object under the guidance of the laser echo signals.
[0006] According to an embodiment of the present disclosure, the microwave radar unit is configured to emit microwave signals and receive microwave echo signals reflected by the flying object; the single-photon lidar unit includes a laser emitter, a single-photon detection camera, and a transmitting and receiving optical path, the laser emitter and the transmitting optical path are configured to emit pulsed laser to irradiate the flying object to obtain single-photon echo signals, the receiving optical path is configured to receive the single-photon echo signals reflected by the target and couple the single-photon echo signals into the single-photon detection camera, and the single-photon detection camera is configured to measure the time of flight of the single-photon echo signals according to the single-photon echo signals.
[0007] According to an embodiment of the present disclosure, the characteristic information of the flying object includes position information of the flying object, flight parameter information of the flying object, and shape characteristic information of the flying object.
[0008] According to an embodiment of the present disclosure, the position information of the flying object includes longitude, latitude, and height of the flying object, and distance information; the flight parameter information of the flying object includes speed information and flight direction information of the flying object; and the shape characteristic information of the flying object includes size information and image information of the flying object.
[0009] According to an embodiment of the present disclosure, the intercepting unmanned aerial vehicle is provided with a detection camera, and is capable of automatically receiving laser echo signals reflected by the target flying object when the distance between the target flying object and the intercepting unmanned aerial vehicle is less than a set distance; the set distance is 50 meters.
[0010] According to an embodiment of the present disclosure, the laser emitter emits pulsed laser in a near-infrared band with a power higher than 5 W and a pulse width not higher than 10 ns.
[0011] According to an embodiment of the present disclosure, the measures taken by the intercepting unmanned aerial vehicle to intercept the target flying object further include emitting a blocking net, emitting an impact object, or emitting an explosive object; the number of the intercepting unmanned aerial vehicles is greater than 1, the endurance time of the intercepting unmanned aerial vehicles is higher than 30 minutes, and the flight speed of the intercepting unmanned aerial vehicles is higher than 70 km / h.
[0012] An embodiment of another aspect of this disclosure provides a method for intercepting unmanned aerial vehicles (UAVs), comprising: emitting microwave signals to scan a target area to detect flying objects entering the target area, and detecting and receiving microwave echo signals reflected by the flying objects to determine the preliminary position of the flying objects; emitting lasers to illuminate the flying objects through a single-photon lidar unit based on the preliminary position, and detecting and receiving single-photon echo signals reflected by the flying objects for single-photon detection, while simultaneously receiving infrared radiation signals from the flying objects through an infrared unit for infrared detection; obtaining characteristic information of the flying objects based on the detected single-photon echo signals and infrared radiation signals; continuously tracking and detecting the flying objects based on the characteristic information, and sharing the characteristic information of the flying objects with the intercepting UAV in real time; and instructing and guiding the intercepting UAV to intercept the target flying objects, wherein when the distance between the intercepting UAV and the target flying objects is less than a set distance, the intercepting UAV receives the laser echo signals reflected by the flying objects, and accelerates to collide with or launch an interceptor according to the laser echo signals to intercept the target flying objects. Attached Figure Description
[0013] The above and other objects, features, and advantages of this disclosure will become clearer from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
[0014] Figure 1 This is a schematic diagram of the composition of a drone interception system according to an embodiment of the present disclosure.
[0015] Figure 2 This is a schematic diagram of the method flow of the drone interception system according to an embodiment of the present disclosure. Detailed Implementation
[0016] This disclosure provides a drone interception system and method. For threatening flying objects at long distances (e.g., within 10km), it proposes an interception system and method that utilizes a single-photon lidar to guide an intercepting drone to intercept the threatening flying object. This interception system is capable of detecting, tracking, and guiding the intercepting drone towards the target at long distances. When the intercepting drone approaches the target flying object at close range, it accurately intercepts the target flying object under the guidance of the laser echo signal. It has strong anti-interference capabilities and a long effective range.
[0017] Among existing common drone interception methods, electronic jamming is a relatively common approach. However, the unknown communication frequency bands of drones are often difficult to determine and are variable. Furthermore, with the development of AI, drones can have built-in AI systems, enabling flight without wired communication, making electronic jamming less effective. Using a physical interception platform based on drones is a more reliable and stable method. It is also harder for the target to detect, the interception platform is reusable, and its operating cost is low.
[0018] However, such interception methods require that, after the target is detected, the accuracy of existing radar guidance and positioning is limited, making it difficult to meet the interception and guidance requirements. The methods for intercepting drones are not ideal and have not been widely used.
[0019] LiDAR (Light Detection and Ranging) is one of the most widely used precision positioning technologies. Its main principle is to emit laser pulses to a target area and receive the reflected echoes. By measuring the time of flight of photons, the distance between the target and the emission point is obtained. If the distance is measured point-by-point, or if an array of detectors is used to acquire distance information from multiple locations, a three-dimensional image of the target is formed. Based on the acquired three-dimensional image, target identification can be achieved. LiDAR technology has wide applications in urban surveying and autonomous driving. LiDAR using the near-infrared band spectrum has strong penetrating power through smoke and other contaminants and possesses good anti-interference capabilities.
[0020] However, laser light experiences significant attenuation and scattering during transmission in atmospheric environments, limiting the application of lidar in complex, long-range scenarios. To increase the effective range of lidar, researchers have applied single-photon detection technology from the field of quantum precision measurement. This technology provides single-photon-level sensitivity and picosecond-level time measurement accuracy, enabling lidar to accurately respond to extremely small amounts of photon information returning from a distance. Simultaneously, on the hardware side, researchers have optimized the optical system, enabling the single-photon lidar unit to achieve high efficiency in receiving laser echo signals and suppressing background noise. On the software side, computational imaging algorithms have also made significant progress in efficiently processing single-photon data. Related algorithms exhibit good performance under weak laser echo signals and high background noise conditions, reconstructing high-quality depth and reflectivity maps at a signal level of one photon per pixel. Single-photon lidar has achieved significant breakthroughs in effective range, with the longest possible identification and imaging distance for unmanned aerial vehicles (UAVs) exceeding 10 km.
[0021] To achieve efficient interception of small drones and other flying objects that pose a threat at low altitudes, this disclosure proposes an integrated interception system and tracking and interception method that combines single-photon lidar, drone interception, infrared detection, and simple microwave radar for both long and short ranges, in order to intercept flying objects that intrude into important airspace.
[0022] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.
[0023] In this disclosure, a drone interception system is provided, such as Figure 1 As shown, the drone interception system includes a microwave radar unit, a single-photon lidar unit, an infrared unit, a data processing unit, a control unit, a turntable, and an interceptor drone, wherein:
[0024] The microwave radar unit is configured to emit microwave signals to scan the target area to detect flying objects entering the target area, and to detect and receive microwave echo signals reflected by the flying objects to determine the initial position of the flying objects.
[0025] The single-photon lidar unit is configured to emit a laser to illuminate the flying object based on its initial position and to detect and receive the single-photon echo signal reflected by the flying object for single-photon detection.
[0026] The infrared unit is configured to receive infrared radiation signals from flying objects and perform infrared detection on them.
[0027] The data processing unit is configured to obtain the characteristic information of the flying object based on the single-photon echo signal and infrared radiation signal of the detected flying object;
[0028] The control unit is configured to control the turntable, single-photon lidar unit and infrared unit to continuously track and detect the flying object based on the flying object's characteristic information, and to share the flying object's characteristic information with the intercepting drone in real time, and to instruct and guide the intercepting drone to intercept the target flying object.
[0029] According to the embodiments of this disclosure, when the distance between the intercepting drone and the target flying object is less than a set distance, the intercepting drone can directly receive the laser echo signal after the laser irradiates the target flying object, and obtain the light spot image and / or light spot intensity of the target flying object based on the laser echo signal, thereby enabling the intercepting drone to accelerate and collide with the target flying object under the guidance of the laser echo signal.
[0030] According to embodiments of this disclosure, a microwave radar unit is used to emit microwave signals and receive microwave echo signals reflected after the microwave signals act on a flying object.
[0031] A single-photon lidar unit includes a laser emitter, a single-photon detection camera, and a receiving and receiving optical path. The laser emitter and the transmitting optical path emit pulsed laser light to illuminate the flying object with a suitable field of view, obtaining a single-photon echo signal. The receiving optical path receives the single-photon echo signal reflected by the target and couples it into the single-photon detection camera. The single-photon detection camera measures the flight time of the single-photon echo signal, enabling real-time determination of the distance between the intercepting drone and the target flying object, thus allowing for more precise interception of the target flying object. The laser emitter has a transmission power higher than 5W and emits near-infrared pulsed laser light with a pulse width not exceeding 10ns.
[0032] According to embodiments of this disclosure, the characteristic information of an object includes its position information, flight parameter information, and shape characteristic information. The position information includes the object's longitude, latitude, altitude, and distance; the flight parameter information includes its speed and flight direction; and the shape characteristic information includes its size and image information, thereby allowing the determination of the object's type.
[0033] According to an embodiment of this disclosure, the intercepting drone is equipped with a detection camera that can automatically receive laser echo signals reflected by the target flying object when the distance to the target flying object is less than a set distance; the set distance is 50 meters, and the set distance can also be set according to the actual situation, such as 30 meters, 60 meters, 80 meters, etc.
[0034] According to embodiments of this disclosure, in addition to directly intercepting the drone from impacting the target flying object, depending on the type of the target flying object, the optional measures for intercepting the drone from the target flying object include: launching a blocking net, launching an impactor, or launching an explosive. The launched impactor may be, for example, metal fragments or metal projectiles.
[0035] According to embodiments of this disclosure, the number of intercepting drones is greater than one. For example, multiple intercepting drones are distributed in different directions within the target area to be protected. The number of intercepting drones can be several or dozens. Each intercepting drone has an endurance of more than 30 minutes and a flight speed of more than 70 km / h.
[0036] The laser emitting module in the single-photon lidar unit is responsible for emitting strong pulsed lasers of a specific wavelength. The single-photon detection camera has a sensitive response to photon-level signals and can detect the weak single-photon echo signals reflected back by flying objects (taking UAVs as an example). The light-receiving and receiving path has the ability to suppress noise in the optical path, improving the signal-to-noise ratio in the entire single-photon detection process. The data processing unit uses a high-performance data processing board as the data processing core, receiving data from the single-photon detection camera and infrared images (or videos) of flying objects detected and captured by the infrared unit, reconstructing a three-dimensional image of the target flying object, and using the infrared image to obtain the target flying object's position information, flight parameter information, and shape feature information, such as the flying object's angle and angular velocity information, thereby controlling the turntable to track the target in real time through the control unit. Intercepting drones can be used directly as the interceptor. To ensure that the interceptor can accurately and stably approach the target and complete the interception regardless of the distance, the intercepting drone has the following functions: When the intercepting drone is far from the target flying object, it can communicate with the data processing unit of the interception system in real time to obtain the location information (such as longitude, latitude, and altitude) and flight parameter information (such as flight speed and flight direction) of the intercepting drone in real time, and adjust the flight status of the intercepting drone accordingly, such as adjusting the flight direction, flight speed, and flight altitude. When the intercepting drone is close to the target, the intercepting drone itself can receive the laser echo signal reflected from the target aircraft by the laser emitted by the single-photon lidar. Based on the image and intensity information formed by the laser echo signal, the drone can determine the location of the target aircraft and thus complete the accelerated interception of the target aircraft by laser guidance. To this end, the intercepting drone itself is equipped with a detection camera that only detects the laser spectrum emitted by the single-photon lidar. It receives the laser echo signal to form a light spot image of the target aircraft. When the distance to the target aircraft is less than 50m, it can identify and lock onto the target aircraft by means of image or light spot intensity, guide the intercepting drone itself to approach the target aircraft, and selectively intercept the target aircraft by means of direct impact, launching a blocking net or impact object, explosives, etc.
[0037] Another embodiment of this disclosure provides a method for intercepting drones, such as... Figure 2 and combined Figure 1 As shown, the drone interception method includes:
[0038] Operation S1: The microwave unit emits microwave signals to scan the target area to detect flying objects entering the target area, and detects and receives microwave echo signals reflected by the flying objects to determine the preliminary position of the flying objects;
[0039] Operation S2: Based on the initial position, the single-photon lidar unit emits a laser to illuminate the flying object and detects and receives the single-photon echo signal reflected by the flying object for single-photon detection. At the same time, it receives the infrared radiation signal of the flying object for infrared detection.
[0040] Operation S3: Obtain the characteristic information of the flying object based on the single-photon echo signal and infrared radiation signal of the detected flying object;
[0041] Operation S4: Continuously track and detect the aircraft based on its characteristic information, and share the aircraft's characteristic information with the intercepting drone in real time; and
[0042] Operation S5: Instructs and guides the interceptor drone to intercept the target flying object. When the distance between the interceptor drone and the target flying object is less than the set distance, the interceptor drone receives the laser echo signal and accelerates to collide with or launch an interceptor according to the laser echo signal to intercept the target flying object.
[0043] After a suspicious flying object enters the target airspace, the microwave radar unit detects it and sends its position information to the data processing unit. The control unit then directs the turntable to direct the pulsed laser emitted by the single-photon lidar unit to the flying object's location. Simultaneously, the interceptor drone receives the information and takes off. The single-photon lidar unit emits a pulsed laser to illuminate the target flying object's location, locating, imaging, and identifying the target flying object's type, speed, and distance. Infrared detection is performed on the target flying object to determine its angle and angular velocity. The single-photon radar guidance system uses the target signal to determine its real-time position and velocity for image-based closed-loop stable tracking, achieving continuous ranging and positioning. This provides the interceptor drone with real-time position information, instructing it to fly to the target flying object's location. When the interceptor drone approaches the target flying object at a relatively close distance, to improve tracking bandwidth and accuracy, and to avoid potential communication interference from the target flying object itself, the interceptor drone uses its onboard detection camera to receive the laser echo signal reflected from the target flying object, generating an illuminated image. Based on this image, it automatically accelerates to approach the target flying object and completes the interception.
[0044] Example 1: Taking the drone interception process as an example, an interception system is placed at the center of the target area to be protected, and six drones are deployed within the target area for interception. The turntable is controlled by a stepper motor and encoder, with a pointing accuracy of ≤±10″, and can be adjusted in azimuth from -120° to +120° and in pitch from 0 to 85°. It can track target flying objects at a maximum tracking speed of ≥1° / s and can carry equipment with a weight of ≥20kg and dimensions of ≥300*250*300mm. The infrared camera has a pixel size of >640*512, a field of view of at least 0.3-5° with continuous zoom, and operates in a wavelength range of 3-5µm or 8-12µm, outputting video frames at a frequency of ≥30Hz. The microwave radar can perform coarse positioning of flying objects in all directions within the target area, with positioning accuracy required to cover the infrared camera's range. The maximum field of view assists the single-photon lidar in locking onto targets. The laser emitter can emit near-infrared pulsed lasers with a power of 5W or more and a pulse width of ≤10ns to illuminate the target aircraft and obtain diffuse reflection single-photon echo signals. The single-photon detection camera is a detector capable of responding to single-photon echo signals of the returned single photon level, requiring a dark count ≤20kcps. The interceptor drone requires an endurance of >30 minutes and a flight speed of ≥72km / h throughout its operating range to be able to catch up with most target aircraft. Simultaneously, the interceptor drone has communication capabilities, enabling it to receive the coordinates of the target aircraft and respond to commands. The tracking accuracy of the interceptor drone is ≤1m. Simultaneously, the detection camera onboard the interceptor drone can receive the laser echo signal reflected from the target drone within a distance of less than 50m. The camera has ≥640 pixels, generates brightness-related images, and can automatically fly towards the target drone based on these images. It then intercepts or destroys the target drone by directly impacting it or launching an interceptor. The single-photon lidar itself has a certain field of view, can identify the drone's characteristic information, obtain the current position and velocity of the target drone, calculate the target drone's flight direction and next position, and the turntable continues to point in the target's flight direction, achieving continuous... Continued tracking and ranging. Simultaneously, the interception system communicates with the interceptor drone, obtaining its position and issuing flight commands at 1-50Hz / s to guide it towards the target aircraft. After a period of pursuit, the interceptor drone approaches within 50 meters of the target. At this point, its onboard camera receives the laser echo signal reflected from the target drone, identifies its location, and automatically accelerates to intercept it. The camera then confirms the target drone's status before returning. Afterward, the interception system resumes its rotating scan, probing the entire target area.
[0045] The UAV interception system and method disclosed herein utilize single-photon lidar to image and track target flying objects. By combining the advantages of single-photon lidar positioning guidance and laser guidance, the system achieves continuous tracking of distant targets and guides the interceptor aircraft for precise interception. Compared with existing UAV interception schemes, it has the following advantages: (1) The interception system uses single-photon lidar for positioning and guidance, which can provide high-precision positioning capabilities at greater distances and expand the interception range. (2) It can use physical impact interception, which is more stable than electromagnetic interference or laser weapons. (3) The interception system uses active laser pulse emission, which is better able to counteract environmental interference such as smoke and dust compared to passive image guidance. (4) When the target flying object is close, the single-photon lidar emits laser to illuminate the target flying object. In close-range situations, the laser guidance method can effectively counteract environmental interference, avoid target loss and tracking failure, and improve the interception rate. (5) The entire interception system process can be automated, eliminating the need for personnel to operate the interceptor UAV, thus reducing labor costs.
[0046] The embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various elements and methods described above are not limited to the specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.
[0047] The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of this disclosure. It should be understood that the above descriptions are merely specific embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.
Claims
1. A drone interception system, comprising a microwave radar unit, a single-photon lidar unit, an infrared unit, a data processing unit, a control unit, a turntable, and an interceptor drone, wherein: The microwave radar unit is configured to emit microwave signals to scan the target area to detect flying objects entering the target area, and to detect and receive microwave echo signals reflected by the flying objects to determine the preliminary position of the flying objects. The single-photon lidar unit is configured to emit a laser to illuminate the flying object based on the preliminary position, and to detect and receive the single-photon echo signal reflected by the flying object for single-photon detection. The infrared unit is configured to receive infrared radiation signals from the flying object and perform infrared detection on the flying object; The data processing unit is configured to obtain the characteristic information of the flying object based on the detected single-photon echo signal and infrared radiation signal of the flying object; The control unit is configured to control the turntable, the single-photon lidar unit and the infrared unit to continuously track and detect the flying object based on the characteristic information of the flying object, and to share the characteristic information of the flying object with the intercepting drone in real time, and to instruct and guide the intercepting drone to intercept the target flying object.
2. The UAV interception system according to claim 1, when the distance between the intercepting UAV and the target flying object is less than a set distance, the intercepting UAV can directly receive the laser echo signal after the laser irradiates the target flying object, and obtain the light spot image and / or light spot intensity of the target flying object according to the laser echo signal, thereby realizing that the intercepting UAV accelerates to collide with the target flying object under the guidance of the laser echo signal.
3. The UAV interception system according to claim 1 or 2, wherein the microwave radar unit is used to emit microwave signals and receive microwave echo signals reflected after the microwave signals act on the flying object; The single-photon lidar unit includes a laser emitter, a single-photon detection camera, and a receiving optical path. The laser emitter and the receiving optical path are used to emit pulsed laser light to illuminate the flying object with a suitable field of view to obtain a single-photon echo signal. The receiving optical path receives the single-photon echo signal reflected by the target and couples it into the single-photon detection camera. The single-photon detection camera is used to measure the flight time of the single-photon echo signal based on the single-photon echo signal.
4. The unmanned aerial vehicle (UAV) interception system according to claim 1, wherein the characteristic information of the flying object includes the flying object's position information, the flying object's flight parameter information, and the flying object's shape characteristic information.
5. The UAV interception system according to claim 4, wherein the location information of the flying object includes the longitude, latitude, altitude, and distance information of the flying object; the flight parameter information of the flying object includes the speed information and flight direction information of the flying object; and the shape feature information of the flying object includes the size information and image information of the flying object.
6. The drone interception system according to claim 2, wherein the intercepting drone is equipped with a detection camera that can automatically receive the laser echo signal reflected by the target flying object when the distance to the target flying object is less than a set distance; the set distance is 50 meters.
7. The UAV interception system according to claim 3, wherein the laser emitter emits a power higher than 5W and emits a near-infrared pulsed laser with a pulse width not higher than 10ns.
8. The unmanned aerial vehicle (UAV) interception system according to claim 2, wherein the measures that the UAV can take to intercept the target flying object further include: Launching barricades, launching impactors, or launching explosives.
9. The drone interception system according to claim 1, wherein the number of intercepted drones is greater than 1, the endurance of the intercepted drones is greater than 30 minutes, and the flight speed is greater than 70 km / h.
10. A method for intercepting unmanned aerial vehicles (UAVs), comprising: The system emits microwave signals to scan the target area to detect flying objects entering the target area, and detects and receives microwave echo signals reflected by the flying objects to determine the preliminary position of the flying objects. Based on the preliminary position, the single-photon lidar unit emits a laser to illuminate the flying object and detects and receives the single-photon echo signal reflected by the flying object for single-photon detection. At the same time, the infrared unit receives the infrared radiation signal of the flying object for infrared detection. The characteristic information of the flying object is obtained based on the single-photon echo signal and infrared radiation signal of the flying object detected. The aircraft is continuously tracked and detected based on its characteristic information, and its characteristic information is shared with the intercepting drone in real time. as well as The system instructs and guides an interceptor drone to intercept a target flying object. When the distance between the interceptor drone and the target flying object is less than a set distance, the interceptor drone receives the laser echo signal reflected by the flying object and accelerates to collide with or launch an interceptor according to the laser echo signal to intercept the target flying object.