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基于最小二乘估計(jì)的InISAR空間目標(biāo)三維成像方法

畢嚴(yán)先 魏少明 王俊 毛士藝

畢嚴(yán)先, 魏少明, 王俊, 毛士藝. 基于最小二乘估計(jì)的InISAR空間目標(biāo)三維成像方法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1079-1084. doi: 10.11999/JEIT151000
引用本文: 畢嚴(yán)先, 魏少明, 王俊, 毛士藝. 基于最小二乘估計(jì)的InISAR空間目標(biāo)三維成像方法[J]. 電子與信息學(xué)報(bào), 2016, 38(5): 1079-1084. doi: 10.11999/JEIT151000
BI Yanxian, WEI Shaoming, WANG Jun, MAO Shiyi. Interferometric ISAR Imaging for 3-D Geometry of Uniformly Rotating Targets Based on Least Squares Estimation Method[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1079-1084. doi: 10.11999/JEIT151000
Citation: BI Yanxian, WEI Shaoming, WANG Jun, MAO Shiyi. Interferometric ISAR Imaging for 3-D Geometry of Uniformly Rotating Targets Based on Least Squares Estimation Method[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1079-1084. doi: 10.11999/JEIT151000

基于最小二乘估計(jì)的InISAR空間目標(biāo)三維成像方法

doi: 10.11999/JEIT151000
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61171122, 61201318, 61501011, 61501012)

Interferometric ISAR Imaging for 3-D Geometry of Uniformly Rotating Targets Based on Least Squares Estimation Method

Funds: 

The National Natural Science Foundation of China (61171122, 61201318, 61501011, 61501012)

  • 摘要: InISAR系統(tǒng)能夠在短觀測(cè)時(shí)間內(nèi)實(shí)現(xiàn)對(duì)目標(biāo)的3維成像,在目標(biāo)識(shí)別和分類中有廣泛應(yīng)用。但是ISAR成像平面不僅取決于目標(biāo)相對(duì)雷達(dá)的空間位置,還和目標(biāo)的運(yùn)動(dòng)情況有關(guān)。針對(duì)空間平穩(wěn)運(yùn)動(dòng)目標(biāo),該文利用互相垂直的L型基線構(gòu)成雙通道InISAR系統(tǒng),對(duì)各天線接收到的回波分別采用各自的參考距離進(jìn)行聚焦處理,采用傳統(tǒng)的距離-多普勒算法得到目標(biāo)散射點(diǎn)2維像,通過(guò)提取各散射點(diǎn)的干涉相位和多普勒信息,采用最小二乘方法對(duì)目標(biāo)的有效轉(zhuǎn)動(dòng)角速度大小和方向進(jìn)行估計(jì),進(jìn)而估計(jì)出散射點(diǎn)的3維位置,實(shí)現(xiàn)目標(biāo)3維成像。仿真實(shí)驗(yàn)驗(yàn)證了所提方法的有效性和魯棒性。
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出版歷程
  • 收稿日期:  2015-09-08
  • 修回日期:  2016-02-25
  • 刊出日期:  2016-05-19

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