块白化杂波抑制的海面漂浮小目标检测方法

doi:10.3969/j.issn.1001-2400.2016.06.004

西安电子科技大学学报

块白化杂波抑制的海面漂浮小目标检测方法

李东宸;水鹏朗;许述文

(西安电子科技大学雷达信号处理国家重点实验室，陕西西安 710071)

收稿日期:2015-09-22 出版日期:2016-12-20 发布日期:2017-01-19
作者简介:李东宸(1988-)，男，西安电子科技大学博士研究生，E-mail: charlieli.xidian@gmail.com．
基金资助:
国家自然科学基金资助项目(61201296)

Floating small target detection in the sea clutter via block-whitened clutter suppression

LI Dongchen;SHUI Penglang;XU Shuwen

(National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China)

Received:2015-09-22 Online:2016-12-20 Published:2017-01-19

摘要/Abstract

摘要：

海杂波背景下对漂浮小目标的检测是海面搜索雷达面临的难点与重点．针对高分辨海杂波的非均匀、非平稳特性，在提出分块白化方法对海杂波进行抑制的基础上，利用纯杂波与含目标回波在时频平面上能量分布的差异，提出时频脊引导的Hough变换提取时频特征，并得到基于该特征的检测器．实测IPIX雷达数据表明当观测时间较短时，该检测器具有比基于分形的检测器更好的检测性能．

关键词: 漂浮小目标, 海杂波, 分块白化, Hough变换, IPIX雷达

Abstract:

It is always a difficult task for the marine surface surveillance radar to detect the floating small target embedded in the sea clutter. Considering the non-uniform and non-stationary nature of sea clutter, the block-whitening strategy is used to suppress the clutter. By analyzing the differences between the energy distributions of the clutter-only returns and those of the returns with the target in the time-frequency (TF) plane, a TF feature is extracted via the TF-ridge-aided Hough transform. A detector using the TF feature is proposed. Experimental results for the IPIX radar datasets show that the proposed detector attains a better detection performance than the fractal-based detector in a relatively short observation time.

Key words: floating small target, sea clutter, block-whitening, Hough transform, IPIX radar

李东宸;水鹏朗;许述文. 块白化杂波抑制的海面漂浮小目标检测方法[J]. 西安电子科技大学学报, 2016, 43(6): 21-26.

LI Dongchen;SHUI Penglang;XU Shuwen. Floating small target detection in the sea clutter via block-whitened clutter suppression[J]. Journal of Xidian University, 2016, 43(6): 21-26.

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块白化杂波抑制的海面漂浮小目标检测方法

Floating small target detection in the sea clutter via block-whitened clutter suppression

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