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首页> 外文期刊>Radar, Sonar & Navigation, IET >Coherent dual-band radar system based on a unique antenna and a photonics-based transceiver
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Coherent dual-band radar system based on a unique antenna and a photonics-based transceiver

机译:基于独特天线和基于光子收发器的相干双频雷达系统

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摘要

This study reports the development of a coherent dual-band radar system consisting of a frequency selective surface (FSS)-based dual-band focal-point/Cassegrain parabolic antenna and a single photonics-based transceiver. The proposed antenna enables to simultaneously operate in the S and X bands due to the use of an FSS-based sub-reflector. Numerical and experimental results of the antenna reflection coefficient, radiation pattern and gain have been shown in excellent agreement for both frequency bands. Furthermore, the proposed dual-band antenna has been applied in conjunction with a photonics-based coherent dual-band radio-frequency transceiver operating in the same bands. The authors' innovative radar system has been properly validated by the detection and ranging of a commercial aircraft and a helicopter on a building roof, using S and X bands concurrently.
机译:这项研究报告了相干双频雷达系统的开发,该系统由基于频率选择表面(FSS)的双频焦点/卡塞格林式抛物面天线和基于单个光子学的收发器组成。由于使用了基于FSS的子反射器,因此所提出的天线能够同时在S和X波段工作。在两个频段上,天线反射系数,辐射方向图和增益的数值和实验结果均显示出极好的一致性。此外,所提出的双频带天线已经与在相同频带中工作的基于光子学的相干双频带射频收发器结合使用。作者的创新雷达系统已通过同时使用S和X波段对商用飞机和直升飞机在建筑物屋顶上的探测和测距进行了正确验证。

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