用于ISAC的 secure OFDM 波形设计：对抗被动传感的人工相位-多普勒位移
Secure OFDM Waveform Design for ISAC: Artificial Phase-Doppler Shifts Against Passive Sensing
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中文总结 AI 辅助
本文提出了一种用于OFDM-based ISAC的低截获概率波形设计方法，通过引入人工相位和多普勒位移来对抗被动传感，同时保持通信和传感性能。
中文摘要 AI 辅助
本文提出了一种新颖的低截获概率（LPI）波形设计方法，用于基于正交频分复用（OFDM）的集成传感与通信系统。通过引入人工相位和多普勒位移，这些受窃听者未知的控制缺陷有效干扰了被动雷达处理和截获尝试。在合法接收端，它们可以完全补偿，从而保持标准OFDM通信和传感性能。为了支持所提出LPI波形设计在OFDM-based ISAC中的有效性，展示了在27 GHz频率下具有1 GHz带宽的测量结果，考虑了不同的缺陷引入方法，所有方法均不影响协作系统性能和窃听者处的补偿能力。
英文摘要
This paper proposes a novel low probability of intercept (LPI) waveform design approach for orthogonal frequency-division multiplexing (OFDM)-based integrated sensing and communication systems by introducing artificial phase and Doppler shifts. These controlled impairments, unknown to eavesdroppers, effectively disrupt passive radar processing and intercept attempts. At legitimate receivers, they can be fully compensated, so that standard OFDM communication and sensing performance are preserved. To support the effectiveness of the proposed LPI waveform design for OFDM-based ISAC, measurement results with 1 GHz bandwidth at 27 GHz are presented considering different impairment introduction approaches, all with no impact on cooperative system performance, and compensation capabilities at the eavesdropper.
