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Localized Mismatch Filter Design for Dual-Function Radar-Communication Waveforms
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DOI：10.1109/LCOMM.2026.3655560.png)
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Abstract
En 中文
In the dual-function radar-communication (DFRC) system, due to variations in communication information, the matched filter output of each DFRC waveform exhibits distinct range sidelobe structures, referred as range sidelobe modulation (RSM), which will degrade the clutter cancellation performance and increase residual clutter energy after moving target indication (MTI) processing. To solve this problem, a localized mismatch filter (LMMF) design method is proposed in this letter. First, a joint weighted optimization problem in terms of sidelobe level (SLL), similarity, and signal-to-noise ratio (SNR) loss is formulated. Then, the LMMF design method based on the alternating direction method of multipliers (ADMM) is proposed, and its convergence and complexity are discussed. Finally, several numerical results are given to demonstrate the effectiveness of the proposed method.
Keywords:
Dual-function radar-communication
range sidelobe modulation
clutter cancellation
localized mismatch filter