Chapter 722: Beidou System!
Hearing Yang Jie's words, Zhang Kelong and others were also full of emotion in their hearts, once Yang Jie decided to enter a certain field, it must be to concentrate all the human, material, financial and technical resources to carry out technical research in this field for a very long time, like so many subsidiaries of Huaxing Group Company have carried out technical research and development for more than nine years in their respective technical fields, and it seems that such a high-intensity research and development will continue.
This determination and will makes many people sigh incomparably, Yang Jie's own Yonghan Aviation Technology Company lost money for four or five years before it began to make a profit, and the same is true for Ruixing Technology Company, and Yang Jie has also invested in some science and technology projects with a long payback period, such as biomedicine and shipbuilding, and has no intention of entering the financial industry.
This adherence to product technology research and development and some trade-offs is quite moving.
Because satellite technology is a strategic high-tech in the world, and various countries have extremely strict regulations, Yang Jie also racked his brains to reach an internal agreement with Motorola, bypassing the United States technology supervision to obtain many of Motorola's satellite technology patents.
The satellite company established in Hong Kong has nothing to do with Motorola on the surface, and it is difficult for the outside world to see any reputation for the cooperation between this company and the Huaxia Satellite Communications Company.
In the early 90s, China began to contract foreign satellite launch business, because of the low quotation and high launch success rate, there was a period of glory, and even 12 Iridium satellites were launched by Long March rockets. But as major companies such as Hughes and Laura have also handed over their launch tasks to domestic ones and are negotiating cooperation in the development of satellites, conservatives in Washington have finally felt uneasy, believing that they have touched their scales.
Conservatives accused Hughes and Laura of helping Huaxia develop rocket technology, which eventually forced Congress to enact the famous "Arms Export Control Regulations in International Trade," which prohibits U.S. manufacturing, including satellites containing American components, from being launched on Huaxia rockets.
Since the United States has the most developed satellite industry, and most of the world's satellites more or less use American satellite technology and parts, this ban has dealt a huge blow to domestic commercial rocket launches, resulting in a sharp decrease in domestic and foreign orders for satellite launches.
Yang Jie's Starlink plan also makes Huaxia Satellite Communications Company the largest customer of the Aerospace Group Corporation at this stage, and if this launch goes smoothly, the Aerospace Corporation and the Huaxia Sea Launch Company will each undertake forty or fifty rocket launch missions in the next few years.
This is a launch order worth more than $2 billion, and the Aerospace Corporation naturally attaches great importance to it.
Zeng Jiabao then also mentioned that the Huaxia Satellite Communications Company and the Space Technology Research Institute of the China Aerospace Corporation will cooperate in the design and development of a new satellite platform for the Beidou Satellite Navigation System project.
Satellite navigation is a sunrise industry with broad prospects, and the US military in the first Gulf War let the world for the first time appreciate the huge multiplier role of GPS satellite navigation system in high-tech warfare, resulting in the end of the war, all sides have launched their own satellite navigation systems, all want to seize the commanding heights of technology.
GPS technology is a new technological revolution for the US military, and in the past, it was necessary to drop hundreds or thousands of unguided bombs to destroy targets, and only need to add an additional device to receive GPS signals, so that it can attack targets with an accuracy of about 10 meters.
Moreover, compared with the laser- and television-guided bombs in the US arsenal, traditional interference such as smoke, night, and clouds has little impact on GPS, and the only thing that can interfere with it is probably whether the GPS signal is normal.
GPS guidance technology has become a hot spot for the three US armed forces for a while, and the two bombs bombed by Huaxia at the embassy in the Federal Republic of Yugoslavia in 99 were the GPS-guided Jedam bombs used by the US Air Force.
The Jedam bomb, which was not detonated, has been smuggled back to China and has been cracked through reverse engineering, but now the Beidou navigation system network has not yet been formed, and the domestic imitation satellite-guided bomb cannot be put into use.
Although GPS is good, after all, it is controlled by the United States, and they set many restrictions at the beginning of R&D -
When the GPS satellite is working normally, it will constantly use the pseudo-random code composed of 1 and 0 binary code elements to shoot navigation messages, which are divided into civilian codes and military codes, and the accuracy of civilian is about 20 meters, while the military can reach 2 meters.
The point is that the US military can deliberately choose to turn off the GPS signal in a certain area, resulting in a temporary failure of any product that uses GPS guidance, which is for other powers in the world, if they really want to use GPS to navigate, it is simply sticking their heads into the noose of the United States.
As a P5 country, Huaxia naturally does not want to be controlled by others in this regard, and there have been incidents in which a missile launched by Huaxia crashed because the United States deliberately turned off the satellite signal, and China has also adopted a two-legged approach in this regard; on the one hand, it has to pay to join the "Galileo" navigation system jointly developed by European countries, and on the other hand, China is also developing it independently.
Although European countries have not kicked Huaxia out of the group in the satellite navigation system, it is impossible for China to get the technology, and the only thing that China has spent a lot of money to get is the right to use the satellite frequency of the "Galileo" satellite navigation system.
When communicating with these technical experts in the space city, Yang Jie also heard for the first time that China actually carried out the research and development of satellite navigation systems as early as the end of the 60s of the last century, although it was intermittent due to many reasons.
From the late 80s to the early 90s, after watching the use of GPS in the US military's Desert Storm operation shocked the country's upper echelons, the country proposed its own navigation satellite plan, and the project officially began to be established.
Huaxia has all kinds of problems in the research and development system, but as long as some major national defense science and technology projects are established, and overseas countries block them everywhere in this regard, then this project can still continue.
In October 2000, the first navigation and positioning satellite developed by Huaxia was launched, and by May last year, three navigation satellites had been launched in China, constituting the first generation of the Beidou satellite navigation system independently developed and established by itself.
This system can only be regarded as a regional navigation system, and it is an experimental project.
This project was officially established in 94, and the three satellites that have been launched now are the research and development results of the first generation of satellite navigation systems.
The first generation of satellite navigation system adopts the ground timing plus the satellite is equipped with rubidium atomic clock, but the accuracy of rubidium atomic clock is not high, the timing accuracy is more than 100 nanoseconds, the error is more than one nanosecond, and the measurement error in the satellite navigation system will cause a ranging error of 0.3 meters, and the positioning accuracy error is indeed very large.