| 机载双基STAP非线性时变加权技术的研究 |
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| 引用本文： | 段锐,汪学刚,陈祝明,江朝抒.机载双基STAP非线性时变加权技术的研究[J].电波科学学报,2009,24(1). |
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| 作者姓名： | 段锐 汪学刚 陈祝明 江朝抒 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054 |
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| 摘 要： | 针对机栽双基地雷达杂波的距离相关特性,提出一种新的基于非线性时变加权(NL-TVW)技术的空时自适应处理(STAP)方法用于抑制双基杂波.该方法考虑了双基杂波角度一多普勒频率特性随距离变化的非线性因素,可有效抑制来自远、中及近距离场景中的杂波回波.此外,NL-TVW方法是与数据相关的,可自适应地补偿双基杂波的距离非平稳性而无需了解有关雷达平台或场景的先验知识.仿真结果表明:在不同双基距离的场景下,非线性时变加权法比基于线性时变加权的STAP方法和无任何补偿措施的双基STAP方法有更优的杂波抑制性能.
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| 关 键 词： | 机载双基地雷达 双基STAP 杂波抑制 非线性时变加权 |
The study on air-borne bistatic STAP nonlinearly time-varying weighting techniques |
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| DUAN Rui,WANG Xue-gang,CHEN Zhu-ming,JIANG Chao-shu.The study on air-borne bistatic STAP nonlinearly time-varying weighting techniques[J].Chinese Journal of Radio Science,2009,24(1). |
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| Authors: | DUAN Rui WANG Xue-gang CHEN Zhu-ming JIANG Chao-shu |
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| Affiliation: | School of Electronic Engineering;Uinversity of Electronic Science and Technology;Chengdu Siduan 610054;China |
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| Abstract: | To deal with the range dependency of airborne bistatic clutter,a novel space-time adaptive processing(STAP) approach based on the nonlinearly time-varying weighting(NL-TVW) is proposed for bistatic clutter suppression.The nonlinear factors contained in the range-varying characteristics of angle-Doppler frequency are taken into accounted by the method,and can effectively suppressing the bistatic clutter returns reflected from the far,middle and near distance scenarios.Moreover,the NL-TVW is a data-dependent ... |
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| Keywords: | airborne bistatic radar bistatic STAP clutter suppression nonlinear time-varying weighting |
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