| 气象杂波环境下二维次序统计量恒虚警检测器 |
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| 引用本文： | 李道京,俞卞章.气象杂波环境下二维次序统计量恒虚警检测器[J].系统工程与电子技术,2002,24(2):107-109. |
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| 作者姓名： | 李道京 俞卞章 |
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| 作者单位： | 1. 西安电子工程研究所,陕西,西安,710100
2. 西北工业大学,陕西,西安,710072 |
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| 摘 要： | 利用实际的气象杂波数据 ,研究了其CFAR处理问题。基于FFT处理技术 ,比较了CAGO -CFAR检测器、CLUTTERMAPPING -CFAR检测器和MX -OS -CFAR检测器的抑制气象杂波性能。针对存在的问题 ,提出了将通常在一维距离向进行的CFAR处理改为在R-Fd(距离 -多普勒频率 )二维平面进行 ,并利用次序统计量估计杂波幅度 ,形成新的稳健的 2D -OS -CFAR检测器。对实际杂波数据和仿真目标数据的处理结果表明所提出的 2D -OS -CFAR检测器具有良好的性能
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| 关 键 词： | 恒虚警检测器 目标识别 雷达气象学 |
| 文章编号： | 1001-506X(2002)02-0107-03 |
| 修稿时间： | 2001年3月7日 |
2D-OS-CFAR Detector in Weather Clutter Environment |
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| LI Dao jing\,YU Bian zhang\.2D-OS-CFAR Detector in Weather Clutter Environment[J].System Engineering and Electronics,2002,24(2):107-109. |
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| Authors: | LI Dao jing\ YU Bian zhang\ |
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| Institution: | LI Dao jing\+1,YU Bian zhang\+2 |
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| Abstract: | CFAR processing in radar is investigated by means of actual weather clutter data. Based on FFT processing technique, a performance comparison of weather clutter suppressing is made among CAGO-CFAR detector, 3D-CLUTTER MAPPING-CFAR detector and MX-OS-CFAR detector. A new robust 2D-OS-CFAR detector is developed to solve existing problems, in which CFAR processing is performed on a two-dimensional R-F d (range-Doppler frequency) plane in place of the conventional one-dimensional range CFAR processing, and order statistics is used to estimate the clutter amplitude. Processing results of the actual weather clutter date and target simulation date have shown the excellent performances of 2D-OS-CFAR detector. |
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| Keywords: | Constant false alarm detector Target recognition Radar meteorology |
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