CCTV News: Key core technologies are important weapons of the country, which are of great significance to promoting the high-quality development of the mainland economy and ensuring national security. In 2023, from the bionic synthetic rubber to the aviation tires, to the world's largest space environment ground-based monitoring network, to the Mozi Survey Telescope, which has the strongest optical time domain survey capability in the Northern Hemisphere, the majority of scientific and technological workers have overcome a number of key core technologies, and significant progress has been made in the construction of a number of large scientific devices.
As the name suggests, "remote sensing" is remote perception, which refers to the use of sensors to receive electromagnetic wave signals reflected or emitted by objects without direct contact with the target object, so as to reveal various characteristics of the object. Remote sensing technology can not only obtain information on the earth's surface, but also penetrate vegetation and water bodies to a certain extent, revealing the secrets hidden under the earth's surface cover.
The MA60 remote sensing aircraft, with its aerial remote sensing system as its flight platform, is currently the most comprehensive scientific experiment platform in the mainland.
Zhu Jinbiao, deputy director of the Aeronautical Remote Sensing Center of the Aerospace Information Innovation Institute of the Chinese Academy of Sciences, said that the MAS60 remote sensing aircraft is an aerial platform for the entire system, and its biggest feature is that its loading capacity is particularly strong. Earth observation, it has 7 types and 18 Earth observation windows for payloads.
The MA60 remote sensing aircraft is fully armed and has become an aerial remote sensing system with powerful observation capabilities. According to the upcoming sea and land integrated experimental tasks, the scientific research team has selected a cooperative observation method of multiple payloads such as multispectral, hyperspectral, laser, and synthetic aperture radar, and will obtain high-quality remote sensing data from the local land-sea junction and coastal zone through multiple flights.
In 2023, the new generation of aviation remote sensing system will be very busy, and a number of domestic first-time applications have been completed, and the results have been remarkable. How strong is the ability of this "aerial transformer"?
The new generation of aviation remote sensing system has broken through a series of key core technologies such as extravehicular multi-hardpoint and aircraft structure design with continuous large opening of the fuselage, which can meet the simultaneous installation of optical, microwave, laser, infrared and other payloads, and the collaborative acquisition of data, filling the gap in the development of medium and large aviation remote sensing aircraft with long range, multi-function and multiple observation windows in China.
The MA60 remote sensing aircraft is also known as the "Aerial Transformer" due to the transformation of "one aircraft and seven configurations". The strength of the "Transformers" is reflected in the ability to load up to more than 10 sets of photoelectric and microwave loads inside and outside the cabin at the same time, which can be optionally matched according to user needs, just like building blocks, to select the observation load and observation window, to achieve different functional configurations and flight capabilities, fully reflecting its flexibility and maneuverability advantages. Especially outside the cabin, the mounting equipment will change the aerodynamic appearance of the aircraft, which has a direct impact on the flight safety of the aircraft, and the external function of the "Transformer" also fully reflects the key technical level of the construction of the aviation remote sensing system.
Simultaneous earth observation of multiple payloads on an aerial remote sensing system, and then post-processing in the laboratory, can finally generate various data products to meet the major needs of different fields.
In 2023, relying on the aerial remote sensing system, the Chinese Academy of Sciences will organize and carry out the "Black Soil Granary" Science and Technology Battle Sanjiang Demonstration Area Aviation Flight Comprehensive Observation Test, the aviation remote sensing system is equipped with 8 sets of large-scale remote sensing equipment, combined with satellites, UAVs, ground sampling, etc., to jointly implement three-dimensional monitoring of black soil open space, multi-frequency "comprehensive physical examination", improve the production capacity and quality monitoring ability of black soil cultivated land, and build a black soil cultivated land archive. Ensuring food security on the mainland has provided important scientific and technological support.
In this year's comprehensive scientific expedition to the Qinghai-Tibet Plateau, the aerial remote sensing system carried out a joint scientific experiment of glacier perspective aviation and ground in the Bayi Glacier area of the Qilian Mountains, which was the first time in the world to carry out a three-band radar joint glacier detection experiment based on an aviation platform, with an altitude of more than 4,400 meters above sea level and a flight altitude of more than 6,500 meters for the first time. After two months of continuous flights and more than 20 sorties, the team obtained a clear glacier profile, which can clearly reflect the interface between the ice surface and the atmosphere, the glacier and the bedrock, and the condition located at the depth of 80 meters of the ice core borehole, which is of great significance for solving the problem of remote sensing monitoring of glacier thickness and breaking through the bottleneck of ice reserve estimation.
Compared with satellite remote sensing, aerial remote sensing can flexibly choose the observation time, observation location, and observation means, and has the unique advantages of strong mobility, high resolution, rich observation content, flexible payload configuration, short response time, etc., and is the most important source of regional high-resolution multi-dimensional remote sensing data, and plays an increasingly important role in scientific research, payload school flight, emergency disaster reduction and other major national needs.
In 2023, the aerial remote sensing system will support a total of 15 national tasks throughout the year, covering the ecological monitoring experiment of land and sea integration in the Yellow River Delta, the typical application demonstration of the monitoring and protection of the "Belt and Road" world heritage, and the acquisition of high-precision digital images based on the Beidou spatio-temporal datum, etc., with 207 flights and 849 hours, shared with more than 30 user departments, and has been deeply and widely used in industries and fields such as ecological environment, natural resources, and land surveying and mapping.
In the future, the scientific research team will continue to carry out research on the national "14th Five-Year Plan" key research and development plan - "Aviation Collaborative Perspective Detection Technology System", build a distributed multi-aviation load, platform and application of the whole chain of aviation perspective detection technology system, and serve the major needs of the country.
Editor: Shu Mengqing
Source: CCTV