A CFAR Detection Method of Ship Wakes in SAR Images

TANG Zi-yue; ZHU Min-hui; WANG Wei-yan

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A CFAR Detection Method of Ship Wakes in SAR Images

更新时间：2025-07-16

- A CFAR Detection Method of Ship Wakes in SAR Images
- Acta Electronica Sinica Vol. 30, Issue 9, Pages: 1336-1335(2002)
- 作者机构：
  
  1. 微波成象技术国家重点实验室,北京,100080
  2. 空军雷达学院,湖北,武汉,430010
  3. 微波成象技术国家重点实验室北京,100080
  4. 空军雷达学院湖北武汉,430010
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2002
- 稿件说明：
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TANG Zi-yue, ZHU Min-hui, WANG Wei-yan. A CFAR Detection Method of Ship Wakes in SAR Images[J]. Acta Electronica Sinica, 2002, 30(9): 1336-1335.
DOI：

TANG Zi-yue, ZHU Min-hui, WANG Wei-yan. A CFAR Detection Method of Ship Wakes in SAR Images[J]. Acta Electronica Sinica, 2002, 30(9): 1336-1335. DOI：

摘要

提出一种基于邻近象素求和的合成孔径雷达(SAR)海面图象舰船尾迹的恒虚警率(CFAR)检测方法(简称APS方法).该方法的关键是用"邻近象素求和"方法实现子图象的Radon变换

在变换域依概率模型进行统计假设检验

并最终实现CFAR检测.文中仿真和实际SAR图象试验的结果表明该算法是有效的.

Abstract

This paper presents a Constant False Alarm Rate (CFAR) detection approach of ship wakes for Synthetic Aperture Radar (SAR) images based on the technique of "adjacent pixels summing (APS)".The key of this method is using the APS strategy to perform Radon transform over the subimage approximately.The CFAR detection algorithm

which uses statistical hypothesis testing on probability model in transform space

is then developed.The effectiveness of this algorithm is demonstrated by the test results of simulating wake images and actual SAR images of ship wakes.

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