The "2012 Aerospace Science and Technology and Strategic Emerging Industries (Dalian) Forum" was held in Dalian on November 29. The general forum theme was "Finding the Future Economic Engine". The first sub-forum focused on "Opportunities and Challenges in the Satellite Application Industry" To discuss the application of satellites and their products, focus on the overall layout of Beidou satellite navigation system, and the opportunities and challenges in the construction process. During the forum, the reporter exclusively interviewed a number of heavyweight experts in the field of satellite navigation in China. They not only briefed the reporter on the latest research and development progress and internationalization process of Beidou System, but also emphasized that the transformation of a major aerospace country into a powerful aerospace country must be Take precautions against the killer under the pain of the world overlord. Experts also raised at the forum that China's aerospace industry should develop in the direction of a rich country after a strong army.
Service coverage in Asia Pacific, accuracy comparable to GPS
Yang Qiangwen, Chief Engineer of the Technical Department of China Satellite Navigation System Management Office, introduced the recent progress of Beidou System in three steps. He said that the first step of the Beidou satellite navigation test system has been officially completed in 2003 and has achieved very good benefits; the second step is to complete the Beidou satellite navigation system regional networking. This step has been completed and will be officially announced at the end of the year. Yang Qiangwen said that at present, China has launched 16 Beidou navigation satellites, of which 14 are in orbit to provide services, construct a constellation configuration of 5GEO + 5IGSO + 4MEO, the entire system operates stably, and has the ability to provide formal services for the entire Asia-Pacific region. The third step is to build the global system of Beidou system by 2020.
Regarding the positioning accuracy of the Beidou satellite navigation system, Yang Qiangwen said that it is basically equivalent to the US GPS, with a horizontal direction better than 10 meters, an altitude direction better than 15 meters, and a speed measurement accuracy better than 0.2 meters / second. These data are based on a large number of user tests, ranging from ground, ocean to air, and even some space tests. The test methods cover shipboard, airborne, and vehicle. The entire test journey spans 17 provinces and cities, from South to Antarctic Zhongshan The dynamic range of the station is from static to 7 kilometers per second, the high speed reaches 300 kilometers per hour, and the test record data exceeds 10,000 hours.
Beidou has taken the first step to go out
Yang Qiangwen introduced to the "Global Times" reporter that after Beidou quickly developed its service capabilities, it has become a strong attraction for neighboring countries. Pakistan is very concerned about the Beidou system. In September, China sent a 50-person delegation to Pakistan to exchange views on the Beidou system. At present, China and Pakistan have confirmed that they will carry out all-round cooperation in the Beidou satellite navigation application field. This work is being carried out in an orderly manner. This is the first step of the Beidou satellite navigation system to go abroad. At the same time, the testing and application work of Beidou System in South Korea has begun, and preliminary results have been obtained. At the 7th General Assembly of the International Committee on Global Satellite Navigation Systems held in Beijing in November, South Korean professors applied the latest results of Beidou System ’s testing and application in Korea Fang had an exchange. In addition, the Indonesian delegation to China in November showed great interest in the Beidou system. In addition to the above countries, Laos, Myanmar, Mongolia and other countries are also communicating with China.
In order to better go out, China has been promoting independent research and development of core chips. According to reports, at present, domestic mainstream enterprises have broken through Beidou chip technology (including Beidou and GPS compatible chip technology), and entered the second round or even the third round of development stage. In terms of technical level and performance, they have already cooperated with typical GPS navigation chips abroad. The products provided by the manufacturers are comparable. Regarding the intellectual property issues of core chips, Yang Qiangwen said that due to the constraints of development time and investment, the current domestic chips still have a problem of high cost. Since they have not been widely and fully applied, the reliability needs to be improved and improved. It is expected that before 2015, China will be able to master the independent intellectual property rights of the core chips of Beidou system, and its performance is close to the international level during the same period.
China Aerospace needs both a strong army and a rich country
In an exclusive interview with the Global Times, General Director Zhang Jianqi of the China Aerospace Foundation said that the attitudes and practices of certain Western countries towards the development of China ’s space industry are alarming. When we do not have this industry, the other party will do everything possible to restrict it, but When we have achieved certain results, the other party will take the "release" method to quickly seize our market and try to prevent China's own products from going to the Chinese domestic market. In the late 1960s and early 1970s, when China launched a large-scale computer project, Zhang Jianqi participated in the project. He recalled that there was a small gap between China and the United States in various software including operating systems, but when the United States discovered After the initial results of our large-scale computer research and development, we quickly opened up sales to China and violently impacted Chinese related companies. Fortunately, some key institutes insisted on independent research and development, and this is the situation we have today. Zhang Jianqi urged that every Chinese company should have national security awareness. For example, China ’s precious rare earth resources have been sold cheaply and exported out of order, while the United States is already acquiring rare earth minerals in Vietnam, Mongolia and other countries in an attempt to control the world ’s rare earth resources.
Ding Weisheng, deputy director of the 703th Institute of China Launch Vehicle Technology, stressed in his speech at this forum that when you are not strong, everyone will ignore you, you can use other forces to balance you, when you are strong to a certain extent, the world The overlord will definitely kill you. We are in a situation of rapid development, and it is necessary to make a clear request for a major aerospace country to transform into a powerful aerospace country. Ding Weisheng said that the independent innovation spirit possessed by China Aerospace was forced out by national missions, competitors and strategic opponents, and it was also supported by the strength of the whole country. The start of aerospace starts with a strong army. The state puts a lot of core resources, core technologies, and core talents in our units. Once we form these things, in addition to national defense, we really assume the responsibility of a rich country.
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