Chip‐Based Microwave‐Photonic Radar for High‐Resolution Imaging,Laser & Photonics Reviews

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Chip‐Based Microwave‐Photonic Radar for High‐Resolution Imaging
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2020-08-20 , DOI: 10.1002/lpor.201900239
Simin Li ₁ , Zhengze Cui ₁ , Xingwei Ye ₁ , Jing Feng ₁ , Yue Yang ₁ , Zhengqiang He ₁ , Rong Cong ₁ , Dan Zhu ₁ , Fangzheng Zhang ₁ , Shilong Pan ₁

Affiliation

Radar is the only sensor that can realize target imaging at all time and all weather, which would be a key technical enabler for future intelligent society. Poor resolution and large size are the two critical issues for radar to gain ground in civil applications. Conventional electronic radars are difficult to address due to both issues, especially in the Ka band or lower. In this work, a chip‐based microwave‐photonic radar based on silicon photonic platform, which can implement high‐resolution imaging with very small footprint, is proposed and experimentally demonstrated. Both the wideband signal generator and the de‐chirp receiver are integrated on the chip. A broadband microwave‐photonic imaging radar occupying the full Ku band is experimentally established. A high‐precision range measurement with a resolution of 2.7 cm and an error of less than 2.75 mm is obtained. Inverse synthetic aperture imaging of multiple targets with complex profiles is also implemented.

中文翻译：

用于高分辨率成像的基于芯片的微波光子雷达

雷达是唯一可以随时随地实现目标成像的传感器，它将成为未来智能社会的关键技术推动力。较差的分辨率和较大的尺寸是雷达在民用应用领域中立足的两个关键问题。由于这两个问题，传统的电子雷达很难解决，尤其是在Ka频段或更低的频段。在这项工作中，提出并通过实验证明了基于硅光子平台的基于芯片的微波光子雷达，该雷达可以实现非常小的占位面积的高分辨率成像。宽带信号发生器和去线性调频接收器都集成在芯片上。实验建立了一个覆盖整个Ku波段的宽带微波光子成像雷达。分辨率为2的高精度范围测量。7厘米，误差小于2.75毫米。还实现了具有复杂轮廓的多个目标的逆合成孔径成像。

更新日期：2020-10-08

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