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Modulated-symbol domain matched filtering scheme for photonic-assisted integrated sensing and communication system based on a single OFDM waveform

Lede Yin and Jing He

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Abstract

In this Letter, a modulated-symbol domain matched filtering scheme based on orthogonal frequency division multiplexing (OFDM) is proposed for the photonic-assisted W-band integrated sensing and communication (ISAC) system. The photonic-assisted ISAC system based on a single OFDM waveform is experimentally demonstrated. By using the single OFDM waveform, it can improve the spectrum efficiency and achieve dual functionalities of communication and radar detection simultaneously. The optical heterodyne scheme is used to generate the W-band OFDM signal for the ISAC system. The experimental results show that the data rate of OFDM is up to 4.56 Gbit/s; meanwhile, it can achieve the radar ranging with a ranging resolution of 1.88 cm and a ranging error of millimeter level in the OFDM-ISAC system.

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Data availability

Data underlying the results presented in this Letter are not publicly at this time but may be obtained from the authors upon reasonable request.

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