A5013972951- Satellite Communication Systems
- Telecommunications and Broadcasting Technologies
- Space exploration and regulation
- Infrastructure Maintenance and Monitoring
- Antenna Design and Analysis
- 3D Surveying and Cultural Heritage
- UAV Applications and Optimization
- Software-Defined Networks and 5G
- Spacecraft Design and Technology
- Structural Health Monitoring Techniques
- Space Satellite Systems and Control
- Space Science and Extraterrestrial Life
- Opportunistic and Delay-Tolerant Networks
- Network Traffic and Congestion Control
- Vehicular Ad Hoc Networks (VANETs)
China Academy of Space Technology
2021-2024
Beijing University of Technology
2024
Cheongju University
2023
Coupling effects of various loading conditions can cause deflections, settlements and even failure in-service bridges. Although it is one the most critical loads, unfortunately, moving vehicles are difficult to capture in real time by bridge monitoring systems currently place for sustainable operation. To fully understand status a bridge, essential obtain instantaneous vehicle load distributions dynamic traffic environment. there some methods that identify overweight vehicles, captured...
Dunkirk" (hereinafter referred to as Dunkirk), a new film directed by Christopher Nolan, has been highly praised since it was released in China early September, with the score of latest Douban high 8.7.This is Nolan's first masterpiece on subject war.The overall viewing experience can be summarized "constant tension and horror", As director Nolan said, "For me, most unique part Dunkirk's story sense suspense.I didn't shoot war movie, but suspense thriller".In this sense, not so much disaster...
With the development of relay satellite system, system provides a high and low speed combined communication platform spacecraft on LEO or MEO. In order to ensure stability reliability link whole as well coverage each stage fight mission orbit entry, key missions, reentry eta, this paper proposes wide coverage, in which beam antenna supports safeguard communication, narrow movable higher wider after it's unfolded orbit. paper, technology overall architecture, space beam, array mode, capacity,...
In order to guarantee the support ability of communication with ground station during process cabin translocation task, coverage narrow beam solid surface relay antenna and wide in is analyzed. Combined each antenna, a switching strategy between proposed by using method multi-antenna fusion. The TT&C spacecraft ensured maximum while single meets its requirements. Finally, scenario built simulate verify correctness effectiveness method.
In order to achieve reliably dynamic flow control of the space Ethernet data in integrated space-ground network communication system, presents a strategy based on RED algorithm, makes decisions gateway cache capacity and realizes unified management multi terminals through handshake protocol, thus always length buffer queue reasonable range, preventing loss while make full use downlink bandwidth; Modeling simulating using OPNET simulation software, bandwidth 600Mbps, can throughput upgraded...
The construction of an integrated space to ground data transmission system fusing the and terrestrial communication networks is trend communication. Study on manned spacecraft designing protocol conversion IP over CCSDS conducted. A method integrating space-ground network for LEO proposed, carried out by developing gateway a guaranteed QoS(Quality Service) designed. experiment designed implemented, function constructing verified.