Entanglement-assisted multi-aperture pulse-compression radar for angle resolving detection

• URL: http://arxiv.org/abs/2207.10881v1
• Date: Fri, 22 Jul 2022 05:22:50 GMT
• Title: Entanglement-assisted multi-aperture pulse-compression radar for angle resolving detection
• Authors: Bo-Han Wu, Saikat Guha, Quntao Zhuang
• Abstract summary: Entanglement has been known to boost target detection, despite it being destroyed by lossy-noisy propagation. We propose a quantum pulse-compression radar to extend entanglement's benefit to target range estimation.
• Score: 5.109700506364796
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Entanglement has been known to boost target detection, despite it being destroyed by lossy-noisy propagation. Recently, [Phys. Rev. Lett. 128, 010501 (2022)] proposed a quantum pulse-compression radar to extend entanglement's benefit to target range estimation. In a radar application, many other aspects of the target are of interest, including angle, velocity and cross section. In this study, we propose a dual-receiver radar scheme that employs a high time-bandwidth product microwave pulse entangled with a pre-shared reference signal available at the receiver, to investigate the direction of a distant object and show that the direction-resolving capability is significantly improved by entanglement, compared to its classical counterpart under the same parameter settings. We identify the applicable scenario of this quantum radar to be short-range and high-frequency, which enables entanglement's benefit in a reasonable integration time.

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