Performance analysis about automatic targets detection of SAR image based on CFAR method in frequency-domain

Abstract

Abstract: Aimed at the problem of lacking impersonal effectiveness evaluation of SAR target image detection, method is given utilizing ADT to evaluate detecting capability of CFAR method in frequency-domain. The simulation of three kinds of CFAR detectors in frequency-domain for heterogeneous area in SAR image has been realized by using MATLAB and evaluation of emulational effect has been made using ADT. It manifests the feasibility, veracity and availability, which sloves the automatic targets detection of SAR image based on CFAR method in frequency-domain.

Key words: Synthetic Aperture Radar（SAR） image, targets detection, frequency-domain Constant False Alarm Rate（CFAR）, performance evaluation, Average Decided Threshold（ADT）

摘要： 针对SAR图像目标检测缺乏客观效能评估的问题，提出了一种利用平均阀值ADT来评估频域CFAR检测性能的方法。实现了频域中三种CFAR处理器对于SAR图像中异质区域的MATLAB仿真，利用ADT对仿真效果进行评估，验证了频域CFAR技术在SAR图像自动目标检测处理中的可行性、准确性和有效性。

关键词: 合成孔径雷达（SAR）图像, 目标检测, 频域恒虚预警（CFAR）, 效能评估, 平均判决阀值（ADT）

SHI Zepeng, WU Jun, PENG Fang, XIANG Jianjun, XU Tao. Performance analysis about automatic targets detection of SAR image based on CFAR method in frequency-domain[J]. Computer Engineering and Applications, 2012, 48(15): 107-112.

师泽鹏，吴军，彭芳，向建军，徐涛. 频域CFAR技术在SAR图像目标检测中的效能评估[J]. 计算机工程与应用, 2012, 48(15): 107-112.

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Performance analysis about automatic targets detection of SAR image based on CFAR method in frequency-domain

频域CFAR技术在SAR图像目标检测中的效能评估

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