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一種新的基于瞬時(shí)干涉的SAR-GMTI精聚焦和定位方法

張升 孫光 李學(xué)仕 邢孟道

張升, 孫光, 李學(xué)仕, 邢孟道. 一種新的基于瞬時(shí)干涉的SAR-GMTI精聚焦和定位方法[J]. 電子與信息學(xué)報(bào), 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245
引用本文: 張升, 孫光, 李學(xué)仕, 邢孟道. 一種新的基于瞬時(shí)干涉的SAR-GMTI精聚焦和定位方法[J]. 電子與信息學(xué)報(bào), 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245
Zhang Sheng, Sun Guang-cai, Li Xue-shi, Xing Meng-dao. Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry[J]. Journal of Electronics & Information Technology, 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245
Citation: Zhang Sheng, Sun Guang-cai, Li Xue-shi, Xing Meng-dao. Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry[J]. Journal of Electronics & Information Technology, 2015, 37(7): 1729-1735. doi: 10.11999/JEIT141245

一種新的基于瞬時(shí)干涉的SAR-GMTI精聚焦和定位方法

doi: 10.11999/JEIT141245
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金優(yōu)秀青年基金(61222108),國(guó)家自然科學(xué)青年基金(61301292)和中央高?;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)(K5051302058)

Multi-channel Synthetic Aperture Radar-Ground Moving Target Indication High-accuracy Focusing and Positioning Using Instantaneous Interferometry

  • 摘要: 在合成孔徑雷達(dá)地面運(yùn)動(dòng)目標(biāo)檢測(cè)(SAR-GMTI)中,由于場(chǎng)景中多個(gè)運(yùn)動(dòng)目標(biāo)運(yùn)動(dòng)參數(shù)不同且在合成孔徑時(shí)間內(nèi)運(yùn)動(dòng)參數(shù)隨時(shí)間變化,因此常規(guī)算法較難有效解決動(dòng)目標(biāo)信號(hào)的距離徙動(dòng)(RCM)和方位散焦問(wèn)題,難以實(shí)現(xiàn)動(dòng)目標(biāo)的精聚焦,從而影響動(dòng)目標(biāo)定位精度。該文提出一種基于瞬時(shí)干涉的動(dòng)目標(biāo)精聚焦和定位方法。首先提取單個(gè)動(dòng)目標(biāo)信號(hào),精提取瞬時(shí)干涉相位(IIP)并結(jié)合徑向速度解模糊得到動(dòng)目標(biāo)瞬時(shí)徑向速度,經(jīng)過(guò)距離徙動(dòng)補(bǔ)償并最終實(shí)現(xiàn)動(dòng)目標(biāo)的精聚焦,提高動(dòng)目標(biāo)定位精度。實(shí)測(cè)數(shù)據(jù)處理結(jié)果驗(yàn)證了該方法的有效性。
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出版歷程
  • 收稿日期:  2014-09-23
  • 修回日期:  2015-01-15
  • 刊出日期:  2015-07-19

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