河南大学计算机与信息工程学院 2. 河南大学河南省大数据分析与处理重点实验室 3. 河南大学河南省智能技术与应用工程技术研究中心
纸质出版:2022
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王宽, 毋琳, 李宁. 方位多通道滑动聚束SAR通道相位偏差估计方法[J]. 传感器与微系统, 2022,(7):114-117.
方位多通道滑动聚束SAR通道相位偏差估计方法[J]. 2022, (7): 114-117.
王宽, 毋琳, 李宁. 方位多通道滑动聚束SAR通道相位偏差估计方法[J]. 传感器与微系统, 2022,(7):114-117. DOI: 10.13873/J.1000-9787(2022)07-0114-04.
方位多通道滑动聚束SAR通道相位偏差估计方法[J]. 2022, (7): 114-117. DOI: 10.13873/J.1000-9787(2022)07-0114-04.
针对方位多通道滑动聚束合成孔径雷达(SAR)系统方位波束渐进扫描的特点,结合数字波束形成(DBF)技术,提出一种基于重构多普勒谱分析的通道相位偏差估计方法。该方法在方位多通道数据重构之前,对每个通道进行一个方位“去斜”操作,解决由DBF技术和方位波束渐进扫描所造成的多普勒谱混叠。其次,针对多通道SAR系统中相位偏差造成重构多普勒谱中来自各通道的频谱分量不均匀的特性,以最小化频谱分量间的跳变值为优化准则,可以有效地估计通道间的相位偏差。仿真实验验证了该方法的有效性和稳健性,校正后的SAR图像质量得到明显提高。
针对方位多通道滑动聚束合成孔径雷达(SAR)系统方位波束渐进扫描的特点,结合数字波束形成(DBF)技术,提出一种基于重构多普勒谱分析的通道相位偏差估计方法。该方法在方位多通道数据重构之前,对每个通道进行一个方位“去斜”操作,解决由DBF技术和方位波束渐进扫描所造成的多普勒谱混叠。其次,针对多通道SAR系统中相位偏差造成重构多普勒谱中来自各通道的频谱分量不均匀的特性,以最小化频谱分量间的跳变值为优化准则,可以有效地估计通道间的相位偏差。仿真实验验证了该方法的有效性和稳健性,校正后的SAR图像质量得到明显提高。
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Processing of Multichannel Sliding Spotlight and TOPS Synthetic Aperture Radar Data. [J] . Wei Xu,Pingping Huang,Robert Wang 0001,Yunkai Deng. IEEE Trans. Geoscience and Remote Sensing . 2013 (8)
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