| UWB SAR叶簇覆盖人造目标检测 |
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| 引用本文： | 蒋咏梅,匡纲要,梁甸农. UWB SAR叶簇覆盖人造目标检测[J]. 信号处理, 1999, 0(2) |
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| 作者姓名： | 蒋咏梅 匡纲要 梁甸农 |
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| 作者单位： | 国防科技大学电子技术系 |
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| 摘 要： | 穿透叶簇的ＶＨＦ／ＵＨＦ超宽带（ＵＷＢ）ＳＡＲ可用于探则地面隐蔽人造目标。它具有相对带宽很宽，积累角大的特点，能同时获得距离、方位两个方向的高分辨能力，在ＶＨＦ／ＵＨＦ低频段，一般的人造目标可简单模化为目标侧面与地面之间形成的一个长二面角。本文用二面角目标模型建立了特征信号库，在此基础上研究并仿真了一种基于简单散射物理的叶簇穿透ＳＡＲ目标检测方案。结果表明，这种基于物理的检测方案是有效且可靠的。
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| 关 键 词： | 二面角人造目标 特征信号库 匹配滤波成像(MFIF) 复空间匹配滤波(CSMF) |
UWB FOPEN SAR Man-Made Target Detection |
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| Jiang Yongmei,kuang Gangyao,Ling Diannong. UWB FOPEN SAR Man-Made Target Detection[J]. Signal Processing(China), 1999, 0(2) |
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| Authors: | Jiang Yongmei kuang Gangyao Ling Diannong |
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| Abstract: | Foliage penetrating (FOPEN) VHF/UHF SAR can imagee hidden man-made targets with wideangle and ultra-wideband to achieve both range and cross-range high resolution. The target can be modeled by dihedral formed between its side and the pound because of the long wave length of VHF/UHF. The target-side dihedral model is used to form the signature library. A FOPEN--SAR detection based on physics is studied, which carry on the Matched Filter Image Formation (MFIF) and the Complex Spatial Matched Filters (CSMF) in two subsequent steps. Our simulation results have shown that the physics-based detector is efficient with greatly improved detection performance. |
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| Keywords: | Dihedral man--made target Signatur library Matched filter image formation Complex spatial matched filters |
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