Interesting article by POP3 from 2017 but still relevant via pc3cd
POP3 again
(thanks Xinhui
)
China Navy Data Link The system has been advancing by leaps and bounds. Some technologies have led the world
: POP3
data link system is a common standard configuration in advanced countries. The Chinese navy ships are equipped with a variety of models independently developed data link system, and has the world's advanced level, shipborne data. The chain is a system with large capacity, high rate, confidentiality and anti-interference. The development of China's naval data link is relatively late compared to the old-fashioned military powers in Europe and America, but it has a late-comer advantage. Now the Chinese Navy has equipped various types of tactical and strategic data links for different purposes, and its technical level is no less than the world. Countries, and at some level of technology. Some people stick to the rules and are used to seeing the military technology level of the Chinese navy with an old-fashioned view. Such a lack of thinking and thinking is really unable to keep up with the development of reality.
The 722th Research Institute of the Seventh Institute of China Shipbuilding Corporation reported on the development of the naval ship tactical data link in 1982. In August 1986, it reviewed the data link system program. In February 1987, the naval ship tactical data link development program was obtained by the Navy Commander. Approved by the Ministry of Communications. In November 1987, 722 piloted the Navy's data link for the Type 051 destroyer and achieved success. This was the origin of the Chinese Navy's early ship data link. But objectively speaking, China's early data links, such as the ship's HN-900 tactical data link and the airborne 480 series data link, are generally not high in terms of information rate, transmission performance, key strength, etc. Some aspects are still insufficient.
At the beginning of this century, the Chinese navy began to make breakthroughs in many military equipment technologies, and the development of electronic information technology has advanced by leaps and bounds. Around 2003, the Navy began to equip the TJN-905 integrated data link. Although the data link is more advanced, it still cannot keep up with the rapid development of the Chinese navy equipment technology. In 2004, it was newly developed as a comprehensive data link type I carrier. Type substitution. This type of data link is a tactical integrated data link that fully covers the functions of the 905 data link and is compatible with the 901, 902, and 903 data link functions and the integrated chain V/UHF mode and the integrated chain HF serial mode. Provide multiple data transmission channels. It supports the secure transmission of tactical data on the channel. The data is processed by the cryptographic algorithm when transmitted over the air. The key strength is the theater level and the tactical level. It can realize wireless networking communication between the ship intelligence processing computers in the naval ship formation, wireless networking communication between the ship and the aircraft, realize the guidance of the ship to the aircraft and the over-the-horizon target indication relayed by the aircraft, realize Transmission and exchange of operational intelligence data between shore-based, sea-based command centers or early warning command aircraft.
The Chinese Navy is also equipped with the TJN-906 high-speed broadband data link system. The data link is mainly used for maritime joint formation operations, providing high-speed, real-time and networked communication links for formation operations. Its information rate exceeds 2M and can be achieved. Line-of-sight communication fully satisfies the
need for high-speed information transmission required for maritime formation command. TJN-906 high-speed broadband data link has point-to-point, point-to-multipoint and multi-point to multi-point and broadcast exchange information, embedded encryption and decryption module, with strong anti-interference and anti-interception ability, with high electromagnetic compatibility ability. Through the integrated chain satellite channel adaptation function, integrated data link satellite channel data transmission can be realized.
The JIS data link system of the Chinese Navy is a joint general-purpose data link system of the three armed forces. The universal data link system has various types of end machines, which are respectively equipped on different types of platforms such as ships, various types of aircraft and land-based. High-speed data communication between sea-based, space-based and land-based. Modern warfare is often a joint operation of the three armed forces. The JIDS data system makes the naval vessels an effective operational link in the joint operations of the three armed forces. It can accept the intelligence and operational orders issued by the joint military command of the three armed forces and report intelligence to the joint command of the three armed forces. JIDS data system has many functions such as communication, intranet identification, navigation and positioning, processing electronic warfare information, weapon coordination and management, etc., and has high speed, large capacity, low error rate, strong encryption, anti-interference, high precision. Such characteristics, JIDS data system uses time division multiple access, extended frequency hopping mode of operation, its frequency hopping rate of up to 80,000 times per second
