Achievements of China 20 17

1, 1.5: China Communication Technology Test Satellite II was successfully launched.

Communication Technology Experimental Satellite No.2, developed by the Eighth Institute of China Aerospace Science and Technology Corporation, is a new generation of large-capacity communication and broadcasting experimental satellite in China. It is mainly used for satellite communication, radio and television, data transmission and other services, and carries out multi-band and broadband high-speed data transmission test verification.

At 2065438+200765438+1October 5 18, Long March 3B successfully put the communication technology test satellite II into the scheduled orbit. This is also the 245th launch of the Long March rocket.

2.65438+1October 20th: China satellite-ground high-speed coherent laser communication experiment was successful.

The satellite-ground high-speed coherent laser communication load led by Shanghai Institute of Optics and Mechanics, Chinese Academy of Sciences was started with the support of Chinese Academy of Sciences in 20 12, and the experimental load was launched with the quantum satellite Mozi in August 16.

The first round of on-orbit test was conducted from February 28th, 20 16 to June 28th, 2010/0/5, 2007. The downlink single channel communication rate was 5. 100 km, and the elevation angle was low (about 20 degrees). At the same time, it also carries out direct communication with uplink PPM modulation, and the communication rate is 20Mbps.

Chen Weibiao, chief commander of the satellite-ground coherent laser communication load, introduced that this is the first time that China has carried out the satellite-ground high-speed coherent laser communication experiment. The completion of on-orbit test shows that the load has the ability to continuously carry out two-way laser communication experiments, which is a milestone for high-speed coherent laser communication technology in China.

March/April 12: China Shi Jian 13 satellite was successfully launched.

Shi Jian 13 satellite is the first high-orbit Qualcomm communication satellite in China, which was developed by the Fifth Academy of China Aerospace Science and Technology Corporation. Ka-band multi-beam broadband communication system was applied to the satellite for the first time, and the information transmission capacity was greatly enhanced. Its total communication capacity has reached more than 20G, which is about ten times higher than before.

April and May 1: Shanghai World Expo Museum was completed and opened.

Shanghai World Expo Museum is located in Plot D09 of Puxi Park of Shanghai World Expo, covering an area of about 40,000 square meters. This is a comprehensive museum. The museum will comprehensively reflect the grand occasion of the China 20 10 Shanghai World Expo, introduce the history of the Expo since 185 10, and provide a platform for cultural exchanges related to the Expo.

On May 20 1 July1day, the Shanghai World Expo Museum was officially opened to the public.

May 5th: The first flight of domestic large passenger plane C9 19 was successful.

C9 19 large passenger plane is a large jet civil aircraft with independent intellectual property rights developed by China according to international civil aviation regulations. It has 65438 seats +058- 168 seats with a voyage of 4075-5555 kilometers. It successfully made its first flight on May 5, 20 17.

Baidu Encyclopedia -20 17