Since April 1970, since China successfully launched the first artificial earth satellite "Dongfanghong-1", China's communication satellite business has developed for nearly 50 years. According to the statistics of the Union of Concerned Scientists, as of August 2020, there were 1,378 communication satellites in orbit around the world, of which the United States, the United Kingdom and Russia are the top three foreign communication satellites. The number of Chinese communication satellites is 52, which is far from the United States.

In 2019, China launched a total of 54 satellites, including 12 communication satellites, accounting for 22.2%, and the proportion has increased rapidly. With the continuous maturity of the application field of low-orbit broadband communication satellite systems, the improvement of rocket launch capabilities, and the reduction of costs, China's low-orbit broadband communication satellite market space is expected to develop rapidly.

China's communication satellite industry——definition and classification

A communication satellite is a kind of artificial satellite and is the space part of a satellite communication system. As a radio communication relay station, communication satellites realize radio communication between satellite communication earth stations or between earth stations and spacecraft by forwarding radio signals.

Communication satellites can transmit information such as telephone, telegram, fax, data and television. A geostationary communication satellite can cover about 40% of the earth's surface, enabling any ground, sea, and air communication stations in the coverage area to communicate with each other at the same time. Three geostationary orbit communication satellites distributed at equal intervals over the equator can realize global communication except for some areas of the poles.

< /center>

Development history of China's communication satellites

Since April 1970, since China successfully launched the first artificial earth satellite "Dongfanghong-1", China's communication satellite business has developed for nearly 50 years. In the field of communication satellite development, through the accumulation of research and development experience of the four generations of satellites "Dongfanghong-2", "Dongfanghong-3", "Dongfanghong-4", and "Dongfanghong-5", China's communication satellite industry can currently develop communication satellites such as fixed satellites, relay satellites, and direct broadcast satellites. The spectrum of communication satellites covers various frequency bands such as S, C, Ku, and Ka, and the satellite grades cover small to super-large satellites. China has become one of the few countries in the world that can independently design and develop large-capacity communication satellites.

< /center>

China is far behind the US in the number of communications satellites

The launch activities in the field of foreign communication satellites are in line with the overall development capacity and in-orbit scale of each country. The launch activities in the field of foreign communication satellites are in line with the overall development capabilities and in-orbit scale of each country. According to the statistics of the Union of Concerned Scientists, as of August 2020, there were 1,378 communication satellites in orbit around the world, of which the United States, the United Kingdom and Russia are the top three foreign communication satellites. The number of Chinese communication satellites is 52, which is far from the United States. Japan, India, Canada and other countries are next, with more than 20 communication satellites.

< /center>

The proportion of China's communication satellite launches is gradually increasing

In 2019, China launched a total of 54 satellites, including 12 communication satellites, accounting for 22.2%, and the proportion has increased rapidly. Compared with the United States, the proportion of the number of communication satellites in China is far from that of the United States, which shows that there is a huge untapped market space. With the continuous maturity of the application field of low-orbit broadband communication satellite systems, the improvement of rocket launch capabilities, and the reduction of costs, China's low-orbit broadband communication satellite market space is expected to grow rapidly.

< /center>

The domestic low-orbit satellite communication plan is booming

Due to the high cost and poor transmission speed of satellite communication in the past, coupled with my country's relatively developed ground communication system construction, my country's satellite communication market, especially the civilian satellite communication market, is small in scale and low in penetration. According to China Telecom statistics, by the end of 2019, there were only about 300,000 users in China's satellite communication market. However, with the construction of national key projects, policy guidance and the reduction of construction costs, Chinese enterprises have also actively launched a number of communication satellite constellation plans.

In December 2018, my country launched the low-orbit broadband satellite communication system "Hongyun" project and the first satellite of the "Hongyan" constellation respectively, marking a zero breakthrough in the construction of my country's low-orbit broadband satellite communication system . In April 2020, satellite Internet was officially included in the national strategy for new infrastructure construction, which injected a booster for the development of communication satellites.

< /center>

The reprinted article must be deleted if it is violated