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DOI码：10.1364/OE.460295

发表刊物：OPTICS EXPRESS

摘要：Existing photonic compressive receivers have the problem of resolution deterioration when applied in wide-range radar detection. In this study, we propose a photonic-assisted spacefrequency two-dimensional (2D) compressive radar receiver capable of achieving high-resolution detection in wide-range scenarios. For the space dimension, the compression process is realized by employing a spatially adaptive photonic projection basis, which guarantees complete mapping of arbitrarily delayed echoes-the key to high-resolution wide-range detection. For the frequency dimension, photonic compressive sensing is employed to further compress the bandwidth of the projected sparse signal. Therefore, the proposed system can achieve wide-range radar detection without resolution deterioration with compressed output. Herein, with two channels of 630 MHz outputs, high-resolution distance detection within a range of 21 km with a resolution of up to 2.3 cm is achieved. Moreover, inverse synthetic aperture radar (ISAR) imaging of two sets of four-point turntables distributed within the range of 21 km with a resolution of 2.3 cm x 5.7 cm is realized. The proposed photonic-assisted 2D compressive radar receiver is a viable solution to overcome the tradeoff between detection resolution and range of existing photonic compressive receivers, which indicates a path for the further development of high-resolution wide-range radar detection. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

第一作者：Xu, Yirong, Li, Shangyuan, Zhu, Zhengyuan, Xue, Xiaoxiao, Zheng, Xiaoping, Zhou, Bingkun

论文类型：J

文献类型：Article

卷号：30

期号：17

页面范围：31017

ISSN号：1094-4087

是否译文：否