We propose a novel approach to directional modulation (DM) in time-modulated arrays (TMAs) that simultaneously radiates the information signal over a sum pattern and artificial noise over a difference pattern. Unlike other DM-TMA solutions, our technique achieves high-performance DM without the need for time-consuming optimization algorithms, preserving TMA efficiency. This versatility makes it suitable for high-mobility, low-latency applications.
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Maneiro-Catoira et al. (2024) studied this question.
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