CN116002072A - Wide-area infrared point target detection tracking cooperative satellite system - Google Patents
Wide-area infrared point target detection tracking cooperative satellite system Download PDFInfo
- Publication number
- CN116002072A CN116002072A CN202211468776.7A CN202211468776A CN116002072A CN 116002072 A CN116002072 A CN 116002072A CN 202211468776 A CN202211468776 A CN 202211468776A CN 116002072 A CN116002072 A CN 116002072A
- Authority
- CN
- China
- Prior art keywords
- subsystem
- satellite
- target
- satellites
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention provides a wide-area infrared point target detection tracking cooperative satellite system, which comprises: the system comprises a camera subsystem, a target processing subsystem, a task planning subsystem, an inter-satellite network subsystem, an imaging quality assurance subsystem and a shading cover system; the camera subsystem is used for imaging an infrared point target in a wide area range to generate a wide area monitoring range image containing a weak infrared radiation target, the target processing subsystem extracts two-dimensional plane coordinates of the target from the infrared image to generate a three-dimensional position and speed of the target, and different targets are reasonably distributed to different satellites to perform data fusion; the task planning subsystem calculates the orbit positions and the observation capacities of other cooperative satellites according to the target three-dimensional position, and performs observation task planning on the other cooperative satellites; the inter-satellite network subsystem is responsible for receiving two-dimensional angular tracks provided by other satellites, providing the two-dimensional angular tracks for the target processing subsystem, and simultaneously sending information such as collaborative planning generated by the task planning subsystem to other satellites.
Description
Technical Field
The invention belongs to the field of optical satellite remote sensing of earth imaging, and particularly relates to a global synchronous orbit wide-area infrared point target detection tracking cooperative satellite system.
Background
The wide-area infrared point target detection is an important application direction of an optical remote sensing satellite, the current wide-area infrared point target detection satellite system mainly adopts linear array system load, adopts infrared spectrum to scan and image a target with high infrared radiation intensity, and the detected target in the infrared image is a point target, does not have obvious geometric form, and is tracked through small area array staring system load after the target is found, so that the following main problems exist:
(1) The use requirements of wide area detection range and weak radiation target detection cannot be met at the same time. The linear array system has poor load detection sensitivity, can not effectively detect and discover the weak infrared radiation targets below kilowatts/sphericity, and the linear array imaging system realizes detection through scanning, has long scanning period, can acquire a small number of target samples, and easily causes target loss. The small area array staring system has a small load view field, is generally about 1 degree multiplied by 1 degree, and cannot meet the effective tracking of targets in a wide area.
(2) After the infrared image data are generated, the target detection software generates two-dimensional plane position information of the point target, and then generates three-dimensional track information of the target by fusing the two-dimensional plane target information generated by at least 2 satellites. At present, the function is mainly completed by a ground system, and information fusion can be only carried out on a small number of targets about 3 on the satellite, so that the use requirement cannot be met.
(3) The current wide-area infrared point target detection satellite system mainly performs task planning and information interaction by the ground, has no task planning capability on the satellite, does not have an inter-satellite information transmission network, cannot cooperate with other satellites and other ground users to perform work in a matched mode, mainly depends on a ground command control system when the satellite system cooperates with other satellites, and has low timeliness and system joint operation efficiency.
(4) The infrared point target detection satellite needs to shield sunlight entering the lens, and the fact that the sunlight cannot be shielded is that the satellite cannot work when the sunlight is shielded is needed to be avoided. At present, a light barrier or a cylindrical light shield is generally adopted to shield sunlight, the longest dead time of a satellite in a single day reaches 4 hours, and the available time of the satellite is severely limited.
Disclosure of Invention
In view of the foregoing, the present invention provides a wide-area infrared point target detection tracking cooperative satellite system, which can provide stronger detection capability for a weak infrared point target, the system includes: the system comprises a camera subsystem, a target processing subsystem, a task planning subsystem, an inter-satellite network subsystem, an imaging quality assurance subsystem and a shading cover system; the camera subsystem is used for imaging infrared point targets in a wide area, generating a wide area monitoring range image containing weak infrared radiation targets, and providing image data to the target processing subsystem; the target processing subsystem extracts the two-dimensional plane coordinates of the target from the infrared image, generates the three-dimensional position and speed of the target, and reasonably distributes different targets to different satellites for data fusion; the task planning subsystem calculates the orbit positions and the observation capacities of other cooperative satellites according to the target three-dimensional position, and performs observation task planning on the other cooperative satellites; the inter-satellite network subsystem is responsible for receiving two-dimensional angular tracks provided by other satellites, providing the two-dimensional angular tracks for the target processing subsystem, and simultaneously sending information such as collaborative planning generated by the task planning subsystem to other satellites; the imaging quality assurance subsystem provides satellite high-precision deformation measurement results, and combines autonomous geometric calibration on the satellite to provide high-precision geometric calibration coefficients for double-satellite data fusion; the shading cover system is positioned outside the camera, and is combined with an autonomous sunlight avoidance strategy of a satellite to realize inhibition and isolation of light incidence.
In particular, the camera subsystem includes an infrared camera, an electronics processor, and a refrigerator; the infrared camera adopts a large-caliber deep-low Wen Toushe type optical system, and an optical structure consists of a plurality of Gaussian aspheric lenses, so that any optional detection view angle in the range of 0 degree multiplied by 0 degree to 25 degrees multiplied by 25 degrees is provided; the focal plane of the camera is formed by splicing large-area array infrared detectors; the electronic processor is used for completing radiation correction of the infrared image, generating original image data according to a specified data format and transmitting the original image data to the target processing subsystem; the refrigerator adopts a pulse tube refrigerator, the long-term back-to-back surface is positioned in the satellite-X direction and faces the deep cooling space, and the large-area array infrared detector radiates for refrigeration in the deep space.
Specifically, the target processing subsystem comprises a target detection module, an autonomous geometric calibration module and a data fusion module; the target detection module extracts a two-dimensional track of a point target in an infrared image through a target detection algorithm, the autonomous geometric calibration module provides geometric calibration coefficients in real time by determining typical feature point positions in the infrared image, the data fusion module fuses two-dimensional plane position information of double stars into three-dimensional position and speed information, and meanwhile, fusion calculation of a plurality of targets is distributed to different satellites for fusion by adopting a dynamic optimization fusion distribution algorithm based on an observation area.
Particularly, the task planning subsystem is connected with the inter-satellite network subsystem for data interaction, and comprises a target threat priority evaluation module, a resource scheduling module and a conflict resolution module; the target threat priority evaluation module evaluates the target priority according to the three-dimensional position and speed information of the point target obtained by fusion calculation of the target processing subsystem; the resource scheduling module schedules other satellites and ground facilities with cooperative work capacity according to the target priority; when conflicts occur to other resource scheduling, the conflict resolution module is responsible for coordination.
In particular, the inter-satellite network subsystem comprises an inter-satellite laser communication device, an inter-satellite ka phased array communication device and an inter-satellite network management device; the inter-satellite laser communication equipment is used for communicating with other satellites with large data volume interaction requirements; the inter-satellite ka communication device is used for communicating with satellites with general data volume requirements; the inter-satellite network management equipment is used for completing conversion of communication protocols between different satellites, operation maintenance of an inter-satellite network and data transmission routing.
In particular, the imaging quality assurance subsystem includes an angular displacement gauge integrally mounted with the camera subsystem for measuring in-orbit thermal deformations and camera visual axis shake; according to the optical lever method based on the optical autocollimation principle, laser emitted by the laser included angle measuring instrument returns after being reflected by the reflecting surface of the central reference component, and the angular displacement of the camera in the azimuth and the height directions can be solved respectively through actually measuring the zero position of reflected light and the coordinate deviation of offset, so that accurate thermal deformation data is finally obtained.
Particularly, the shading cover system is arranged outside the camera subsystem, and meanwhile, according to the autonomous sunlight avoidance strategy of the satellite, the light blocking side of the shading cover is required to be aligned to the incident direction of sunlight during installation; the sunlight can be always shielded by the light shield through a sunlight avoidance strategy; the light shield comprises a light shielding film and a light expandable framework, and is in a compressed state during the launching process so as to meet the space requirement of the fairing of the carrier rocket; after the track operation, the light shield is unfolded, and the method specifically comprises the following steps: the three-dimensional secondary unfolding is adopted, the passive driving mode is firstly utilized for transverse unfolding, and then the sleeve unfolding mechanism is utilized for providing power for longitudinal unfolding.
The beneficial effects are that:
(1) Compared with the prior art, the invention can provide stronger detection capability for the weak infrared point target, and the detection capability is improved from more than tens of thousands of W/sr to more than hundreds of W/sr. Meanwhile, the invention can provide wide area monitoring capability, and the weak infrared point target detection range of a single satellite can reach more than thousands of kilometers in the process of geosynchronous orbit;
(2) Compared with the prior art, the method can effectively distribute the targets and increase the number of the fusion targets by 1 time;
(3) The existing ground geometric calibration needs to be independently carried out for each calibration, the time of each calibration is more than half an hour, and the calibration coefficient is updated in a day period.
(4) Compared with the prior art, the invention realizes the integration of detection and tracking coordination, and does not need to provide guiding information from outside to carry out task planning;
(5) Compared with the prior art, the invention greatly improves the working time of the satellite and shortens the single-day unavailable time from maximum 4 hours to within 30 minutes.
The invention provides a wide-area infrared point target detection tracking cooperative satellite system, which systematically solves the problem of effective detection of a wide-area weak infrared point target, overcomes the defects of on-board application processing and autonomous cooperation of the infrared point target, realizes integration of satellite imaging detection, target detection, track fusion, task planning and information distribution, and does not need a ground link to participate in work. And the autonomous sunlight avoidance strategy based on the flexible expandable light shield with large expansion ratio reduces the influence of sunlight incidence on the satellite available time. The working efficiency of the satellite is remarkably improved.
Drawings
FIG. 1 is a schematic diagram of the composition of a wide-area infrared point target detection tracking cooperative satellite system of the present invention;
fig. 2 is a schematic diagram of the camera optical system mechanism of the present invention.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
The invention provides a wide-area infrared point target detection tracking cooperative satellite system, which mainly comprises the following components: (1) a camera subsystem, (2) a target processing subsystem, (3) a task planning subsystem, (4) an inter-satellite network subsystem, (5) an imaging quality assurance subsystem, and (6) a shading cover system. The main components of the satellite system are shown in fig. 1, and are described in detail below.
1. Camera subsystem
The camera subsystem images the infrared point targets in the wide area, generates a wide area monitoring range image containing the weak infrared radiation targets, and provides image data for the target processing subsystem; the camera subsystem comprises an infrared camera, an electronic processor and a refrigerator. The infrared camera adopts a large-caliber deep-low Wen Toushe type optical system, an optical structure is composed of a plurality of Gaussian aspheric lenses, any optional detection view angle in the range of 0 degree multiplied by 0 degree to 25 degrees multiplied by 25 degrees is provided, a focal plane of the camera is formed by splicing large-area array infrared detectors, the infrared camera is suitable for detectors with various specifications of 2K multiplied by 2K, 2.7K multiplied by 2.7K, 4K multiplied by 4K and the like, the infrared camera has 0-20 Hz imaging data acquisition frequency, a deep low-temperature environment of 200K-240K is provided for an optical lens of the camera through whole-satellite radiation refrigeration, and instrument noise suppression of an all-optical path of the optical system is realized. The electronic processor completes the radiation correction of the infrared image, generates original image data according to a specified data format, and transmits the original image data to the target processing subsystem. The refrigerator adopts a pulse tube refrigerator to refrigerate the large area array detector.
The camera subsystem comprises an infrared camera, an electronic processor and a refrigerator. The camera subsystem consists of 3-4 cameras, adopts a transmission optical system with the aperture of the entrance pupil larger than 300-500 mm, the structure of the optical system is shown in fig. 2, and the diaphragm of the traditional Gaussian optical system is positioned in the middle of the system, so that a large view field can be realized, but a part of invalid area exists between the first lens and the last lens. The field of view of the transmission type optical system can reach more than 18 degrees multiplied by 18 degrees, and the full disc of the earth is covered in the geosynchronous orbit.
The temperature of the whole optical path of the optical system is below 220K through radiation refrigeration facing the deep space, and the long-term negative surface of the radiation refrigeration is positioned in the satellite-X direction and faces the deep cooling space for a long time. A plurality of cameras are integrally arranged on the top of the satellite and are aligned with the earth for imaging. The electronic processor performs data interaction with the target processing subsystem through an optical fiber or 2711 cable. The focal plane of the camera is refrigerated by a pulse tube refrigerator.
2. Target processing subsystem
The target processing subsystem extracts the two-dimensional plane coordinates of the target from the infrared image to generate the three-dimensional position and speed of the target, and adopts an optimal allocation method to reasonably allocate different targets to different satellites for data fusion, so that the problem of satellite resource waste caused by the fact that a plurality of satellites are fused with the same target due to no allocation is avoided; the target processing subsystem comprises a target detection module, an autonomous geometric calibration module and a data fusion module, adopts a plate-type framework, each module is composed of a plurality of plate cards, the number of the plate cards can be configured according to the requirement of target processing capacity, and the plate cards are integrated with high-performance processors and matched software processing algorithms to realize real-time detection and fusion of targets. The target processing subsystem performs data transmission with the camera subsystem through an optical fiber or 2711 cable. And carrying out data interaction with the task planning subsystem through 2711 cables or SpaceWire buses, RS422 serial ports and other interface forms.
The target processing subsystem comprises a point target detection module, an autonomous geometric calibration module and a data fusion module, wherein the target detection module extracts a two-dimensional track of a point target in an infrared image through a target detection algorithm, the autonomous geometric calibration module determines typical characteristic point positions of stars, ground objects and the like in the infrared image and provides geometric calibration coefficients in real time, the data fusion module fuses two-dimensional plane position information of double stars into three-dimensional position and speed information, and meanwhile, fusion calculation of a plurality of targets is distributed to different satellites for fusion by adopting a dynamic optimization fusion distribution algorithm based on an observation area.
3. Task planning subsystem
And the task planning subsystem calculates the orbit positions and the observation capacities of other cooperative satellites according to the target three-dimensional position, and performs observation task planning on the other cooperative satellites.
The task planning subsystem comprises a target threat priority assessment module, a resource scheduling module, a conflict resolution module and the like, hardware adopts a high-performance DSP and an SOC to calculate, and a software model comprises an orbit extrapolation model, a target motion track extrapolation model, a visible window calculation model, a priority ordering model, a scheduling optimization model, a conflict resolution model and the like. The task planning subsystem performs data interaction with the inter-satellite network subsystem through interface forms such as a SpaceWire bus, an RS422 serial port and the like. The target threat priority evaluation module evaluates the target priority according to the information such as the three-dimensional position, the speed and the like of the point target obtained by fusion calculation of the target processing subsystem, the resource scheduling module schedules other satellites and ground facilities with cooperative work capacity according to the target priority, and when other resource scheduling conflicts, the conflict resolution module is responsible for coordination.
4. Inter-satellite network subsystem
The inter-satellite network subsystem is responsible for receiving two-dimensional angular tracks provided by other satellites, providing the two-dimensional angular tracks for the target processing subsystem, and simultaneously sending information such as collaborative planning generated by the task planning subsystem to other satellites;
the inter-satellite network subsystem comprises an inter-satellite laser communication device, an inter-satellite ka phased array communication device and an inter-satellite network management device. The inter-satellite laser communication equipment has high communication data rate and is used for communicating with other satellites with large data volume interaction requirements. The inter-satellite ka communication device is used for communication with satellites of general data volume demand. The inter-satellite network management equipment is used for completing conversion of communication protocols between different satellites, operation maintenance of an inter-satellite network and data transmission routing. The inter-satellite laser communication equipment and the inter-satellite ka phased array communication equipment are arranged on the surface of a star body, and the installation position is selected according to the orbit position of the required information interaction satellite. The inter-satellite laser communication equipment adopts a full duplex system, the laser communication speed is 0-4 Gbps, the acting distance is not less than 70000 km, the laser communication equipment is arranged at two sides of a satellite, and the laser communication equipment is communicated with other satellites with laser communication capability in a networking way. The inter-satellite ka phased array communication equipment has multi-receiving and multi-transmitting capability, and the phased array antenna is arranged outside a star body.
5. Imaging quality assurance subsystem
The imaging quality assurance subsystem comprises an angular displacement measuring instrument, and the satellite sensor of the satellite and the camera structure reference have thermal deformation due to the influence of heat flow outside the orbit, and the angular displacement measuring instrument and the camera are integrally installed to measure the thermal deformation in orbit and the camera visual axis shake. The imaging quality assurance subsystem provides satellite high-precision deformation measurement results, and combines autonomous geometric calibration on the satellite to provide high-precision geometric calibration coefficients for double-satellite data fusion.
The laser emitted by the angular displacement measuring instrument returns to the angular displacement measuring instrument after being reflected by the reflecting surface of the central reference component, and the angular displacement of the camera in the azimuth and the height directions can be respectively solved through actually measuring the zero position of the reflected light and the coordinate deviation of the offset, so that accurate thermal deformation data is finally obtained.
6. Shading cover system
The shading cover system is positioned outside the camera and is combined with an autonomous sunlight avoidance strategy of a satellite to inhibit and isolate light incidence; the satellite platform provides the subsystem with the matching capabilities of energy, structure, thermal control and the like.
The light shielding cover system mainly comprises a light shielding film and a light expandable framework, and the light shielding cover is in a compressed state during the launching period so as to meet the space comprising requirements of the fairing of the carrier rocket, and the light shielding cover is unfolded after in-orbit operation. The light shield is arranged on the periphery of the camera, and meanwhile, according to the autonomous sunlight avoidance strategy of the satellite, the light blocking side of the light shield is required to be aligned to the incident direction of sunlight during installation.
The light shield adopts a light expandable framework as a main support, and a film is arranged outside the framework. The shading cover system is arranged on the outer side of the camera, the light blocking surface of the shading cover faces to the incident direction of satellite sunlight, and the shading cover can always shade the sunlight through the sunlight avoidance strategy. The bevel angle of the light shield is smaller than or equal to 15 degrees, and the height is not more than 1 meter under the pressing state. After the satellite enters orbit, the light shield adopts three-dimensional secondary expansion, and is firstly transversely expanded by using a passive driving mode, and then is longitudinally expanded by using a sleeve expansion mechanism to provide power.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It will be evident to those skilled in the art that the embodiments of the invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units, modules or means recited in a system, means or terminal claim may also be implemented by means of software or hardware by means of one and the same unit, module or means. The terms first, second, etc. are used to denote a name, but not any particular order.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the embodiment of the present invention, and not for limiting, and although the embodiment of the present invention has been described in detail with reference to the above-mentioned preferred embodiments, it should be understood by those skilled in the art that modifications and equivalent substitutions can be made to the technical solution of the embodiment of the present invention without departing from the spirit and scope of the technical solution of the embodiment of the present invention.
Claims (7)
1. A wide-area infrared point target detection tracking cooperative satellite system, comprising: the system comprises a camera subsystem, a target processing subsystem, a task planning subsystem, an inter-satellite network subsystem, an imaging quality assurance subsystem and a shading cover system; the camera subsystem is used for imaging infrared point targets in a wide area, generating a wide area monitoring range image containing weak infrared radiation targets, and providing image data to the target processing subsystem; the target processing subsystem extracts the two-dimensional plane coordinates of the target from the infrared image, generates the three-dimensional position and speed of the target, and reasonably distributes different targets to different satellites for data fusion; the task planning subsystem calculates the orbit positions and the observation capacities of other cooperative satellites according to the target three-dimensional position, and performs observation task planning on the other cooperative satellites; the inter-satellite network subsystem is responsible for receiving two-dimensional angular tracks provided by other satellites, providing the two-dimensional angular tracks for the target processing subsystem, and simultaneously transmitting collaborative planning information generated by the task planning subsystem to the other satellites; the imaging quality assurance subsystem provides satellite high-precision deformation measurement results, and combines autonomous geometric calibration on the satellite to provide high-precision geometric calibration coefficients for double-satellite data fusion; the shading cover system is positioned outside the camera, and is combined with an autonomous sunlight avoidance strategy of a satellite to realize inhibition and isolation of light incidence.
2. The wide area infrared point target detection tracking cooperative satellite system of claim 1, wherein the camera subsystem comprises an infrared camera, an electronic processor, and a refrigerator; the infrared camera adopts a large-caliber deep-low Wen Toushe type optical system, and an optical structure consists of a plurality of Gaussian aspheric lenses, so that any optional detection view angle in the range of 0 degree multiplied by 0 degree to 25 degrees multiplied by 25 degrees is provided; the focal plane of the camera is formed by splicing large-area array infrared detectors; the electronic processor is used for completing radiation correction of the infrared image, generating original image data according to a specified data format and transmitting the original image data to the target processing subsystem; the refrigerator adopts a pulse tube refrigerator, the long-term back-to-back surface is positioned in the satellite-X direction and faces the deep cooling space, and the large-area array infrared detector radiates for refrigeration in the deep space.
3. The wide-area infrared point target detection tracking cooperative satellite system according to claim 1, wherein the target processing subsystem comprises a target detection module, an autonomous geometric scaling module and a data fusion module; the target detection module extracts a two-dimensional track of a point target in an infrared image through a target detection algorithm, the autonomous geometric calibration module provides geometric calibration coefficients in real time by determining typical feature point positions in the infrared image, the data fusion module fuses two-dimensional plane position information of double stars into three-dimensional position and speed information, and meanwhile, fusion calculation of a plurality of targets is distributed to different satellites for fusion by adopting a dynamic optimization fusion distribution algorithm based on an observation area.
4. The wide-area infrared point target detection tracking cooperative satellite system according to claim 1, wherein the task planning subsystem is connected with an inter-satellite network subsystem for data interaction, and comprises a target threat priority assessment module, a resource scheduling module and a conflict resolution module; the target threat priority evaluation module evaluates the target priority according to the three-dimensional position and speed information of the point target obtained by fusion calculation of the target processing subsystem; the resource scheduling module schedules other satellites and ground facilities with cooperative work capacity according to the target priority; when conflicts occur to other resource scheduling, the conflict resolution module is responsible for coordination.
5. The wide-area infrared point target detection tracking cooperative satellite system according to any of claims 1-4, wherein the inter-satellite network subsystem comprises an inter-satellite laser communication device, an inter-satellite ka phased array communication device, and an inter-satellite network management device; the inter-satellite laser communication equipment is used for communicating with other satellites with large data volume interaction requirements; the inter-satellite ka communication device is used for communicating with satellites with general data volume requirements; the inter-satellite network management equipment is used for completing conversion of communication protocols between different satellites, operation maintenance of an inter-satellite network and data transmission routing.
6. The wide-area infrared point target detection tracking cooperative satellite system according to claim 1, wherein said imaging quality assurance subsystem comprises an angular displacement gauge integrally mounted with said camera subsystem for measuring in-orbit thermal deformations and camera boresight jitter; according to the optical lever method based on the optical autocollimation principle, laser emitted by the angular displacement measuring instrument returns after being reflected by the reflecting surface of the central reference component, and the angular displacement of the camera in the azimuth and the height directions can be solved respectively through actually measuring the zero position of reflected light and the coordinate deviation of offset, so that accurate thermal deformation data is finally obtained.
7. The wide-area infrared point target detection tracking cooperative satellite system according to claim 1, wherein the light shielding cover system is arranged outside the camera subsystem, and the light shielding side of the light shielding cover is required to be aligned with the incident direction of sunlight when the satellite autonomous sunlight avoidance strategy is arranged; the sunlight can be always shielded by the light shield through a sunlight avoidance strategy; the light shield comprises a light shielding film and a light expandable framework, and is in a compressed state during the launching process so as to meet the space requirement of the fairing of the carrier rocket; after the track operation, the light shield is unfolded, and the method specifically comprises the following steps: the three-dimensional secondary unfolding is adopted, the passive driving mode is firstly utilized for transverse unfolding, and then the sleeve unfolding mechanism is utilized for providing power for longitudinal unfolding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211468776.7A CN116002072A (en) | 2022-11-22 | 2022-11-22 | Wide-area infrared point target detection tracking cooperative satellite system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211468776.7A CN116002072A (en) | 2022-11-22 | 2022-11-22 | Wide-area infrared point target detection tracking cooperative satellite system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116002072A true CN116002072A (en) | 2023-04-25 |
Family
ID=86028675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211468776.7A Pending CN116002072A (en) | 2022-11-22 | 2022-11-22 | Wide-area infrared point target detection tracking cooperative satellite system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116002072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117237822A (en) * | 2023-11-10 | 2023-12-15 | 中国科学院空天信息创新研究院 | Collaborative reasoning method for basic model terminal deployment |
-
2022
- 2022-11-22 CN CN202211468776.7A patent/CN116002072A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117237822A (en) * | 2023-11-10 | 2023-12-15 | 中国科学院空天信息创新研究院 | Collaborative reasoning method for basic model terminal deployment |
| CN117237822B (en) * | 2023-11-10 | 2024-03-22 | 中国科学院空天信息创新研究院 | Collaborative reasoning method for basic model terminal deployment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Swetz et al. | Overview of the Atacama cosmology telescope: receiver, instrumentation, and telescope systems | |
| Pascale et al. | The balloon-borne large aperture submillimeter telescope: BLAST | |
| Smith et al. | The lunar orbiter laser altimeter investigation on the lunar reconnaissance orbiter mission | |
| Scuderi et al. | The astri mini-array of cherenkov telescopes at the observatorio del teide | |
| Gehrz et al. | The NASA Spitzer space telescope | |
| US6622970B2 (en) | Method and apparatus for autonomous solar navigation | |
| Beskin et al. | Wide-field optical monitoring with Mini-MegaTORTORA (MMT-9) multichannel high temporal resolution telescope | |
| US9423341B1 (en) | Daytime infrared imaging of satellites | |
| US20130211778A1 (en) | Method for realizing a space survey system for monitoring near-earth space | |
| CN102927982A (en) | Double-spectrum autonomous navigation sensor and design method of double-spectrum autonomous navigation sensor | |
| CN116002072A (en) | Wide-area infrared point target detection tracking cooperative satellite system | |
| Ofek et al. | The large array survey telescope—system overview and performances | |
| Cao et al. | LUT: A lunar-based ultraviolet telescope | |
| US20130278757A1 (en) | Space survey system for monitoring near-earth space | |
| KR102163753B1 (en) | Determination of orbit and attitude stabilization of geostationary satellite using electro-optical system | |
| Bennet et al. | Adaptive optics for satellite imaging and space debris ranging | |
| CN104697527A (en) | Large-view-field X-ray navigation sensor based on lobster eyes | |
| CN105571597A (en) | Ultra-deep-field X-ray active navigation system | |
| Szenher et al. | A hardware and software platform for aerial object localization | |
| KR102214277B1 (en) | A method for determining the trajectory of a geostationary satellite using an electro-optical system | |
| Hasenohr | Initial detection and tracking of objects in low earth orbit | |
| Pereira do Carmo et al. | ATLID, ESA atmospheric backscatter LIDAR for the ESA EarthCARE mission | |
| Laubier et al. | The PLATO camera | |
| Shugarov et al. | Space system for detecting hazardous celestial bodies approaching earth from the daytime sky (SODA) | |
| EP4109043A1 (en) | Direct sun imaging star tracker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |