Synthetic Aperture Imaging With Intensity-Only Data

Synthetic Aperture Imaging With Intensity-Only Data
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仅强度数据的合成孔径成像

DOI:
10.1109/tci.2019.2919272
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发表时间:
2020
影响因子:
5.4
通讯作者:
Tsogka, Chrysoula
Tsogka, Chrysoula
中科院分区:
计算机科学2区
文献类型:
--
作者:
Moscoso, Miguel;Novikov, Alexei;Papanicolaou, George;Tsogka, Chrysoula

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在本文中,我们考虑从单个运动传感器记录的仅强度数据成像散射体的反射率,该传感器同时发射和接收信号,形成合成孔径。通过利用频率照明多样性,我们在每个位置获得多个光强测量,并使用适当的相位控制照明策略和内积偏振恒等式来确定场的交叉相关。然而,通过这种方式获得的场交叉相关并不能提供所有丢失的相位信息,因为它们被确定为取决于接收器位置的相位。本文的主要成果是一种算法,利用该算法,我们将场互相关恢复到对合成孔径上所有测量数据通用的单个相位,因此所有数据是同步的。因此,我们可以与所有频率和测量位置上的数据进行相干成像,就像记录了完整的相位信息一样。
In this paper, we consider imaging the reflectivity of scatterers from intensity-only data recorded by a single moving transducer that both emits and receives signals, forming a synthetic aperture. By exploiting frequency illumination diversity, we obtain multiple intensity measurements at each location, from which we determine field cross correlations using an appropriate phase controlled illumination strategy and the inner product polarization identity. The field cross correlations obtained this way do not, however, provide all the missing phase information because they are determined up to a phase that depends on the receiver's location. The main result of this paper is an algorithm with which we recover the field cross correlations up to a single phase that is common to all the data measured over the synthetic aperture, so all the data are synchronized. Thus, we can image coherently with data over all frequencies and measurement locations as if full phase information was recorded.
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