| 天基稀疏阵运动目标检测模糊 |
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| 引用本文： | 陆必应,梁甸农.天基稀疏阵运动目标检测模糊[J].系统工程与电子技术,2007,29(8):1258-1262. |
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| 作者姓名： | 陆必应 梁甸农 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 针对利用天基稀疏孔径实现地面运动目标指示时带来运动目标检测模糊的问题,分析了稀疏阵产生运动检测模糊的机理,研究了利用频率正交信号解模糊的方法,从理论上推导了解模糊对信号频率的约束条件,提出了稳健、有效的解模糊方法——二级检测法。仿真结果验证了理论分析的正确性和解模糊方法的有效性。
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| 关 键 词： | 地面运动目标 天基雷达 稀疏孔径 运动目标检测 空时频自适应处理 |
| 文章编号： | 1001-506X(2007)08-1258-05 |
| 修稿时间： | 2006年10月13 |
Rejecting moving target detection ambiguities of space-based sparse aperture |
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| LU Bi-ying,LIANG Dian-nong.Rejecting moving target detection ambiguities of space-based sparse aperture[J].System Engineering and Electronics,2007,29(8):1258-1262. |
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| Authors: | LU Bi-ying LIANG Dian-nong |
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| Abstract: | The ground moving target indicator based on space-based sparse aperture is attractive.But moving target detection ambiguities occur for the sparse aperture.Principal factors causing moving target indication ambiguities are analyzed.Then the frequency orthogonal waveform is used to resolve moving target indication ambiguities with constraints of signal frequencies derived.A two-step detection algorithm is presented to reject moving target indication ambiguities.Simulation results prove the theoretic analysis and illustrate that the algorithm is effective and robust. |
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| Keywords: | ground moving target spaceborne radar sparse aperture moving target detection space time frequency adaptive processing |
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