| 基于TBD方法的弱小目标预警研究 |
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| 引用本文： | 邓晓波,皮亦鸣,曹正林,付合山.基于TBD方法的弱小目标预警研究[J].现代雷达,2009,31(12). |
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| 作者姓名： | 邓晓波 皮亦鸣 曹正林 付合山 |
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| 作者单位： | 1. 电子科技大学电子工程学院,成都,610054
2. 中航雷达与电子设备研究院科技发展部,江苏,无锡,214063 |
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| 基金项目： | 国家863计划项目资助，国家自然科学基金项目 |
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| 摘 要： | 运用了检测前跟踪(TBD)方法对多普勒警戒雷达中的弱小目标早期预警问题进行了研究.根据入侵目标的轨迹特点,分析了它在距离-多普勒平面中的转移规律,设计了新的建立在距离一多普勒域上的基于Viterbi搜索算法的帧间能量积累方法.最后,比较了该方法与传统的先检测后跟踪方法的检测性能,并给出了TBD方法的理论检测性能.
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| 关 键 词： | 预警 检测前跟踪 弱小目标 |
Early Detection of Small Targets Based on Track-before-detection Method |
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| DENG Xiao-bo,PI Yi-ming,CAO Zheng-lin,FU He-shan.Early Detection of Small Targets Based on Track-before-detection Method[J].Modern Radar,2009,31(12). |
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| Authors: | DENG Xiao-bo PI Yi-ming CAO Zheng-lin FU He-shan |
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| Abstract: | This paper presents use of track-before-detection (TBD) method for early detection of approaching targets for pulse-Doppler surveillance radars. Upon a careful study of the character of an approaching target trajectory, the law of admissible target transition between successive range-Doppler planes is analyzed. A modified Viterbi algorithm is designed to integrate energy in the range-Doppler domain. The detection performance of the proposed approach is analyzed and compared with the traditional track-af-ter-detection (TAD) method. Moreover, the theoretical detection performance of TBD is also provided. |
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| Keywords: | early detection track-before-detect small targets |
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