The synchronization accuracy of the domestic satellite timing clock has been pushed to the sub-nanosecond level The
domestic satellite timing clock synchronization accuracy has been pushed to the sub-nanosecond level
Time is closely related to everyone. What does it mean when the familiar time is compressed to the order of 10-10 (sub-nanosecond)? What exactly is "a new generation of synchronized time information network"? Why is it that the realization of emerging fields such as the Internet of Things, 5G, and artificial intelligence cannot be achieved without precision time technology?
Guests from the University of Science and Technology of China, Hefei Branch of the Chinese Academy of Sciences, National Shield Quantum Technology Co., Ltd., National University of Defense Technology, Hefei Zhongke Ion Medical Technology Equipment Co., Ltd., industrial investment institutions, etc., discussed the high-precision timing technology in the university. Applications in scientific engineering, national defense and military industry, clean energy, and advanced medical fields.
On the day of the seminar, a new generation of new products that achieve sub-nanosecond timing synchronization accuracy was introduced in detail, which is the domestic compression of synchronization timing accuracy to sub-nanosecond level. Starting from the technology itself, he has expanded to a number of industry applications that are closely related to national construction and people's lives, vividly depicting the connection between the future intelligent world and high-precision time technology.
Why do you need sub-nanosecond timing accuracy?
The emergence of new technologies such as the Internet of Things and 5G has accelerated the arrival of the future intelligent era. In the future intelligent world architecture, all terminals (such as mobile phones, cars, etc.) will be connected to intelligent nodes to realize intelligent interconnection.
The access of a variety of complex nodes will inevitably put forward higher requirements for synchronization and time information. As the basis for high-tech realization, high-precision timing technology has become more and more important.
In the “Thirteenth Five-Year Plan” for major scientific and technological infrastructure announced by the state, the high-precision ground-based timing system has been the key task of the construction target. This shows its importance.
It is against the background of such an industry and the era that we continue to research and explore self-developed high-precision timing methods, and release synchronization equipment, which compresses the domestic synchronization timing accuracy to sub-nanosecond level, and can achieve time synchronization and phase at the same time. Synchronization and event synchronization. It can provide sub-nanosecond time synchronization, reference clock, time triggering and data transmission for nodes deployed from a few meters to tens of kilometers.
High-precision timing technology can be widely used in phased array radars, intelligent networked vehicles, large-scale scientific engineering and future artificial intelligence fields.
Application of High Precision Timing in New System Radar
In new system radars, such as phased array radars, the accuracy of synchronization between multiple channels will seriously affect the imaging quality of the radar. It can provide a clock reference with a clock synchronization accuracy of less than 200ps and a distributed synchronization architecture for large phased array radars, making it easy for the radar to achieve multiple transmissions and multiple receptions, and provide the possibility of realizing high-precision wireless synchronization between space-based and sea-based.
Higher synchronization accuracy, better anti-jamming performance and more reliable encryption technology make it possible to meet high-precision synchronization requirements ranging from a few meters to tens of kilometers, and can be applied to large land-based and sea-based phased array radar applications .
The realization of intelligent networked vehicles requires high-precision timing technology
Intelligent connected cars are currently one of the important landing directions in the field of artificial intelligence, and also an important part of the construction of smart cities. For smart driving cars, safety and reliability are the biggest concerns of consumers for new technologies.
High-precision positioning is an important technology to realize the safe and stable operation of intelligent driving cars. The realization of high-precision positioning technology is precisely inseparable from high-precision timing technology. As an important facility for interconnection and intercommunication in the future 5G era, the positioning accuracy of base stations has been limited by the problem of low precision. By increasing the timing accuracy to sub-nanosecond level, the positioning accuracy of base stations can achieve a leap from meter level to centimeter level. , So as to truly achieve high-precision positioning.
In the future intelligent world, driverless cars are only one type of connected terminals. It is conceivable that the construction of smart cities that need to connect a large number of terminals will undoubtedly be more inseparable from high-precision timing technology.