Experimental Analysis of a HF Hybrid Sky-Surface Wave Radar
Experimental Analysis of a HF Hybrid Sky-Surface Wave Radar
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DOI：
10.1109/maes.2018.170036
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发表时间：
2018-03-01
影响因子：
3.6
通讯作者：
Yu, Lei
中科院分区：
文献类型：
--
作者：
Wei, Yinsheng;Tong, Peng;Yu, Lei
高频(HF)雷达系统利用高频波的折射和绕射特性来感知视线以外的目标。高频天波雷达利用电离层介质反射信号，从而照射数千公里以外的目标，但存在近距离盲区和严重的电离层去相关效应。高频地波雷达利用垂直偏振波的绕射来探测近海数百公里内的目标。但绕射表面波衰减较大，雷达存在垂直入射的电离层杂波问题。高频混合天地波雷达(HFSSWR)是一种天波发射路径和地波接收路径相结合的新型雷达结构，是高频天波和高频地波雷达系统的自然结合[1]。此外，多个独立的接收站可以组成一个多基地网络，并且只使用一个发射机进行操作。系统配置灵活。
High-frequency (HF) radar systems exploit refractive and diffractive properties of HF waves to sense targets beyond the line of sight. HF skywave radars use the ionosphere medium to reflect the signals and thus illuminate targets of thousands of kilometers away, but they suffer from the close-distance blind zone and severe ionosphere decorrelation effect. HF surface wave radars exploit the diffraction of vertically polarized waves to detect targets within hundreds of kilometers offshore. But the diffracted surface wave is highly attenuated, and the radar has the vertical incidence ionospheric clutter problems. High-frequency hybrid sky-surface wave radar (HFSSWR) is a novel radar configuration containing a skywave transmitting path and a surface wave receiving path, which is a natural combination of HF skywave and HF surface wave radar systems [1]. In addition, multiple separate receiving sites can compose a multistatic network and operate with only one transmitter. The system configuration is flexible.