China's R&D Air Atmosphere Detection Lidar

In order to break the temporal and spatial continuity constraints of laser radar, the laser radar research team of Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences has successfully developed a new type of full-altitude and all-day atmospheric detection laser radar, which has effectively promoted China’s international research in this field. status.

Recently, in the National Key Research Project for Major Instruments of the National Natural Science Foundation of China, “Integrated Advanced Air Exploration Base in Tibet”, Wuhan University of Science and Technology undertook the development of an important topic “airborne wind and temperature detection laser radar”. In terms of laser radar detection research, the research team of the Wuhan Institute of Physics and Technology of the Chinese Academy of Sciences discovered for the first time and independently named the “Double Sodium Phenomenon” detection research results, changed the theoretical understanding of the traditional “sodium layer” and effectively improved China’s The international status of the research area.

According to reports, at full height throughout the day, the atmospheric detection laser can achieve full-altitude detection from the ground up to about 110 kilometers, and realizes all-day (continuous day and night) detection of some low-middle-level and all high-rise buildings.

With regard to the promotion and application of laser radar technology, the developed laser radar has been successfully used in the national major scientific projects - Liberal Radar Beijing Station, Hefei Station, Hainan Station and Wuhan Station of the Meridian Project. The system has been operating stably for the past 4 years. As a member of the Space Environment Forecasting Center of the Chinese Academy of Sciences and a member of the Space Weather Early Warning Center of the China Meteorological Administration, the Wuhan Institute of Materials of the Chinese Academy of Sciences also provides space environment detection data for the two centers, and satellite communication during the launch and recovery of the Shenzhou spacecraft and the Beijing Olympics. In safety and other aerospace activities, the space environment safeguard task has been performed many times.

The independent research and development of scientific research instruments and equipment by the Wuhan Institute for the Chinese Academy of Sciences has gradually formed the development pattern of “exploring the generation, developing the generation, and applying the generation”. While researching and developing the atmospheric lidar throughout the entire elevation of the atmosphere, the relevant research team is still in the calcium ion. Optical frequency standard, nuclear magnetic resonance apparatus, lung magnetic resonance imaging apparatus, ultrasonic non-destructive testing equipment, etc. breakthrough a number of key technologies, industrialization has also made important progress.