基于改进WVD-HT的超宽带sar射频干扰目标检测

2008 First International Conference on Intelligent Networks and Intelligent Systems Pub Date : 2008-11-01 DOI:10.1109/ICINIS.2008.173

Chunjian Xie, Kai Zhang, Kuisheng Feng, Chenjiang Guo, Jiadong Xu

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引用次数: 2

摘要

超宽带合成孔径雷达受到地杂波和人工干扰的干扰。在许多情况下，目标散射信号可以近似为线性调频信号。Winger-Ville分布等时频分布为线性调频信号的时频结构提供了一种直接有效的分析方法。同时，可以通过平滑的伪Winger-Ville分布对Winger-Ville分布的交叉项进行平滑处理。结合霍夫变换提高了时频集中，获得了较好的参数估计精度。本文对调频干扰中基于平滑伪Winger-Ville分布和Hough变换的目标检测和参数估计进行了仿真。该方法对超宽带合成孔径雷达的目标检测和参数估计是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Target Detecting Based on Improved WVD-HT for Radio Frequency Interference to UWB-SAR

Ultra-wideband synthetic aperture radar is interfered by ground clutter and artificial jamming. In many cases the targetpsilas scatter signal can be approximated as linear frequency modulated signals. Time-frequency Distribution, such as Winger-Ville distribution, provides a direct and effective analysis method of the time-frequency structures of linear frequency modulated signals. Meanwhile, the cross terms of the Winger-Ville distribution can be smoothed through the smoothed pseudo Winger-Ville distribution. Combine Hough transform the time-frequency concentration is improved and better precision of parameter estimation will be obtained. Target detecting and parameter estimation by the smoothed pseudo Winger-Ville distribution and Hough transform for frequency-modulated jamming are simulated in this paper. The method proved to be efficient for target detecting and parameter estimation of ultra-wideband synthetic aperture radar.

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2008 First International Conference on Intelligent Networks and Intelligent Systems

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