In this article, a new target bearing angle estimation method for ship-borne high-frequency surface-wave radar (HFSWR) is presented. This new method is designed to give bearing angle estimation of ship targets. It relies on platform motion instead of antenna aperture to acquire bearing angle resolving capability, and hence can be applied to ship-borne HFSWRs that only have very small antenna arrays, and gives small vessels over-the-horizon (OTH) detection capability. This new method requires little modification to existing HFSWR hardware, and only a small amount of additional memory and computing power is needed. Both theoretic analysis and implementation details are given in this article. The new method is tested using real-measured ship-borne HFSWR radar data. The test result proved the effectiveness of the new method.

中文翻译：

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使用多普勒效应和非常小的天线阵列对舰载 HFSWR 进行目标方位估计

本文提出了一种新的舰载高频面波雷达(HFSWR)目标方位角估计方法。这种新方法旨在提供船舶目标的方位角估计。它依靠平台运动而不是天线孔径来获得方位角分辨能力，因此可应用于只有非常小的天线阵列的舰载HFSWR，并赋予小型船舶超视距（OTH）检测能力。这种新方法几乎不需要对现有的 HFSWR 硬件进行修改，只需要少量的额外内存和计算能力。本文给出了理论分析和实现细节。使用实际测量的船载 HFSWR 雷达数据对新方法进行了测试。试验结果证明了新方法的有效性。