Shulou(Shulou.com)11/24 Report--

CTOnews.com, June 28, according to CCTV news, the Institute of Aerospace Information Innovation of the Chinese Academy of Sciences recently made a major breakthrough in the field of high-speed satellite-to-ground laser communication. Using the independently developed 500mm aperture laser communication ground system, a satellite-to-ground laser communication experiment was carried out with Jilin-1 MF02A04 satellite, and the communication rate of 10G bits per second (Gbps) was achieved. The satellite load data obtained are of good quality. It can meet the needs of high-standard business applications.

According to CTOnews.com, satellite-to-ground laser communication refers to the technology of using laser as carrier to transmit information between satellite and ground. It has the advantages of rich spectrum resources, fast communication speed, strong anti-interference ability, high security and so on. It is an important part of the future spatial information network. At present, the global satellite-to-ground communication mainly uses microwave technology, but due to the limited resources of microwave frequency band, it is difficult to meet the growing demand for mass data transmission between satellite and ground. In contrast, the laser spectrum resource is extremely rich, and the communication speed is ten times to nearly a thousand times higher than the existing microwave communication rate.

In this satellite-to-ground laser communication experiment, according to the business application standard, the scientific research and technical team successfully completed a series of experimental processes, such as satellite-to-ground cooperative task planning, two-way laser signal acquisition, stable chain building, adaptive optical correction and so on. the satellite-to-ground laser communication with high speed and high reliability in unsteady channel is realized.

This indicates that our country has successfully realized the engineering application of high-speed satellite-to-ground laser communication, and the rate of satellite-to-ground communication has changed from G bits per second to 10 G bits per second, which is of great significance to improve the transmission capacity and security of spatial information networks in our country. It is understood that on the basis of making full use of the existing microwave ground stations, the layout of the national satellite laser communication ground station network and the combined operation mode of laser and microwave will completely solve the bottleneck problem of satellite-to-ground communication in our country. to provide better technical support and services for the country's high-quality economic and social development and social and public needs.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.