Dual-Function Radar-Communication Systems
Summary
Dual-function radar-communication systems unify sensing and data transmission within a single platform, leveraging shared waveforms and antenna arrays to address spectrum scarcity and hardware constraints. By integrating beamforming and advanced MIMO techniques, these systems simultaneously detect and track targets while transmitting information to multiple users. Cognitive approaches and adaptive waveform optimisation enable dynamic allocation of power and spectral resources, ensuring reliable performance under diverse environmental conditions. This convergence offers transformative potential for applications spanning autonomous transport, aerial surveillance, next-generation mobile networks and defence, fostering enhanced situational awareness, spectral efficiency and seamless connectivity.
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Dual-Function Radar-Communication Systems publication trend
The graph below shows the total number of articles in dual-function radar-communication systems across all publications each year (not limited to Nature Index journals).
Technical terms
Dual-Function Radar-Communication (DFRC): A system that performs radar sensing and wireless communication concurrently using shared transmitters and spectral resources.
Multi-Input Multi-Output (MIMO): An antenna architecture employing multiple transmit and receive elements to enhance spatial beamforming, capacity and detection resolution.
Beampattern: The angular distribution of transmitted or received signal power, shaped to satisfy both radar detection and communication link requirements.
Waveform optimisation: The design of signal structures to meet simultaneous sensing and data-transmission objectives under power and hardware constraints.
Signal-to-Interference-plus-Noise Ratio (SINR): A performance metric indicating the ratio of desired signal power to the sum of interference and noise in radar or communication links.
Integrated Sensing and Communication (ISAC): The convergence of sensing functions (such as radar) with communication services into a unified system to improve spectral efficiency and system capabilities.
References
- Joint Transmit Waveform and Receive Filter Design for Dual-Function Radar-Communication Systems. IEEE Journal of Selected Topics in Signal Processing (2021).
- Sensing-Assisted Eavesdropper Estimation: An ISAC Breakthrough in Physical Layer Security. IEEE Transactions on Wireless Communications (2023).
- Joint Communication and Sensing Toward 6G: Models and Potential of Using MIMO. IEEE Internet of Things Journal (2022).
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