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首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Multichannel Analysis and Suppression of Sea Clutter for Airborne Microwave Radar Systems
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Multichannel Analysis and Suppression of Sea Clutter for Airborne Microwave Radar Systems

机译：机载微波雷达系统海杂波的多通道分析和抑制

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摘要

One efficient method to detect slow targets with low signal-to-clutter-plus-noise ratios is space–time adaptive processing (STAP). To apply STAP to maritime radar systems, the multichannel properties of sea clutter have to be known. This paper investigates these characteristics for airborne microwave radar systems to detect vessels in the open sea. It is shown that the motion of sea echoes and different sea scattering types cause different multichannel properties of sea clutter compared with land clutter. This paper provides a mathematical basis to describe multichannel sea clutter and predict STAP performance over water. To confirm the derived properties, several real multichannel sea data sets for different swell directions and sea states were acquired with the airborne radar system Phased Array Multifunctional Imaging Radar (PAMIR), and simulations were conducted. This paper demonstrates the reproducibility of real sea clutter multichannel characteristics for different sea conditions with the help of calculations and simulations, which are proposed in this analysis.
机译：一种时空自适应处理（STAP）是检测低信噪比噪声比的慢速目标的有效方法。要将STAP应用于海上雷达系统，必须了解海杂波的多通道特性。本文研究了机载微波雷达系统检测公海船只的这些特性。结果表明，与陆地杂波相比，海回波的运动和不同的海散射类型导致海杂波的多通道特性不同。本文为描述多通道海杂波和预测水上STAP性能提供了数学基础。为了确定派生的属性，使用机载雷达系统相控阵多功能成像雷达（PAMIR）采集了不同浪涌方向和海况的多个真实多通道海数据集，并进行了仿真。本文通过计算和仿真证明了在不同海况下真实海杂波多通道特征的可再现性。

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