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Robust waveform design for distributed MIMO dual-function radar-communication systems
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DOI：10.1016/j.sigpro.2026.110541.png)
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Abstract
En 中文
In the distributed multiple input multiple output (MIMO) dual-function radar-communication (DFRC) system, the radar and communication performance will be dramatically degraded if nodes are damaged. To mitigate the radar and communication performance degradation caused by node damage, this paper proposes two robust waveform design methods. First, to minimize the waveform error between the desired and synthesized waveforms under the worst-case scenario, a robust DFRC waveform design method is proposed. The designed robust DFRC waveform achieves the minimum waveform error under the worst-case scenario. However, the non-constant modulus of the designed robust DFRC waveform causes significant nonlinear distortion of the transmit waveform when the power amplifier (PA) operates in saturation. Therefore, to avoid modulus variations in the designed robust DFRC waveform, a robust constant-modulus (CM) DFRC waveform design method is proposed. Moreover, the designed CM DFRC waveform can also obtain the minimum waveform error under the worst-case scenario. Finally, simulation results demonstrate the effectiveness of the two proposed methods.
Keywords:
robust waveform design
distributed MIMO
dual-function radar-communication
worst-case scenario
constant-modulus waveform
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