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HF-over-the-horizon radar ship detection with short dwells using clutter cancelation

机译:使用杂波消除技术在短距离内进行超视距超视距雷达舰船检测

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摘要

Coherent sea-clutter cancelation is shown to be an effective method for the exposure of ships with HF OTH (high-frequency over-the-horizon) sky wave radar. A sinusoidal model has been successfully used to approximate and subtract the first-order Bragg peaks, which spread and mask slow targets when using Fourier Doppler processing on short dwells (fewer than 10 s). (Short dwells are required for aircraft surveillance over the vast HF radar coverage area.) The new clutter canceling algorithm has been successfully applied to both synthetic and real OTH data from the U.S. Navy's Relocatable Over-the-Horizon radar (ROTHR) (AN/TPS-71), and results are presented.
机译:经证明,相干海杂波消除是使用HF OTH(高频超视距)天波雷达对船舶进行辐照的有效方法。正弦模型已成功用于近似和减去一阶布拉格峰,当在短停留时间(小于10 s)上使用傅里叶多普勒处理时,该峰会扩散并掩盖慢速目标。 (在宽广的HF雷达覆盖范围内进行飞机监视需要短暂的停留时间。)新的杂波消除算法已成功应用于美国海军可移动超视距雷达(ROTHR)(AN / TPS-71),并给出结果。

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