Researchers from the University of Electronic Science and Technology of China have developed a groundbreaking anti-interference communication method that could revolutionize secure military and radar communications. By leveraging computational antennas, time averaging, and 1-bit reconfigurable intelligent surfaces (RIS), the team has created a robust system capable of maintaining signal integrity even under extreme interference conditions.
The research, led by Xiaocun Zong, Fan Yang, Shenheng Xu, and Maokun Li, introduces a novel approach to signal modulation that significantly reduces hardware complexity while enhancing performance. Traditional anti-interference techniques, such as spread spectrum or frequency hopping, often require substantial spectral resources. In contrast, this new method achieves superior results without additional spectral overhead, making it a highly efficient solution for defence applications.
At the core of this innovation is the computational antenna, which, when combined with RIS, enables precise temporal modulation. The team developed a communication model specifically tailored for these antennas and designed an efficient signal processing algorithm to optimize performance. To validate their approach, they established a USRP-based experimental platform and tested it under strong interference conditions, including a 5 dB jamming-to-signal ratio. The results were impressive, with an 80.9% reduction in bit error rate (BER) and effective restoration of distorted images during transmission tests.
The implications of this research are far-reaching, particularly in the defence and security sectors. In military communications, where interference can be a critical challenge, this technology offers a reliable way to maintain secure and clear transmissions. Additionally, the method’s efficiency in radar detection could enhance situational awareness and target tracking, providing a tactical advantage in contested environments.
Beyond military applications, this anti-interference communication method could also benefit next-generation wireless networks. As the demand for high-speed, low-latency communication grows, ensuring signal integrity in crowded and interference-prone environments will be crucial. The researchers’ work provides a promising solution that could shape the future of wireless communication technology.
By pushing the boundaries of computational antenna technology and reconfigurable intelligent surfaces, this research not only addresses current challenges in secure communications but also paves the way for future innovations. As defence and security needs evolve, the ability to communicate effectively in hostile environments will remain a top priority, and this breakthrough offers a compelling path forward. Read the original research paper here.