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Analysis of polarimetric bistatic sea clutter using the NetRAD radar system

机译:利用NetRaD雷达系统分析极化双基地海杂波

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摘要

This study presents a comparative analysis of amplitude and Doppler spectra statistics from monostatic and bistatic sea clutter data at S-band. These data cover a range of bistatic angles from 60° to 120° and include simultaneous monostatic and co-polarised and cross-polarised bistatic recordings, providing direct comparison of their statistical properties. The time series of amplitude data are fitted to the compound K and K + noise distribution in the range domain and in the Doppler domain, and the variation of the shape parameter is presented for monostatic and co-polarised and cross-polarised bistatic data as an indication of the spikiness of the clutter. From the analysis of this parameter, it is shown that cross-polarised bistatic data tend to be less spiky in the range and Doppler domain than the simultaneous co-polarised bistatic data, and than the simultaneous monostatic data, which could be advantageous in terms of radar detection performance, especially for low-visibility maritime targets.
机译:这项研究对S波段单基地和双基地海杂波数据的幅度和多普勒频谱统计数据进行了比较分析。这些数据涵盖了从60°到120°的双基地角度范围,并且包括同时的单基地,同极化和交叉极化的双基地记录,可以直接比较它们的统计特性。幅度数据的时间序列适合于范围域和多普勒域中的复合K和K +噪声分布,并且对于单静态,共极化和交叉极化双静态数据,形状参数的变化表示为表示杂波的尖锐程度。通过对该参数的分析,可以看出,在范围和多普勒域中,交叉极化的双静态数据倾向于比同时的同极化双静态数据和同时的单静态数据尖峰,这在以下方面可能是有利的:雷达检测性能,特别是对于低可见度的海上目标。

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