论文标题
FHD偏振成像管道：一种新方法，用于广场干涉极化法
The FHD Polarized Imaging Pipeline: A New Approach to Widefield Interferometric Polarimetry
论文作者
论文摘要
我们描述了FHD软件包中实现的新两极化成像管道。该管道基于最佳的地图制作成像方法，并在所有极化模式下执行地平线至冠图像重建。我们讨论了管道两极分化分析背后的形式主义，描述了极化光束响应或琼斯矩阵的等效表示。我们表明，对于天线具有均匀极化比对的阵列，定义非正交仪器极化基础可以实现准确有效的图像重建。最后，我们提出了一种新的校准方法，该方法利用广场效应执行完全偏振的校准。该分析管道基于Byrne等人的Murchison广场阵列（MWA）数据的分析。 （2022，Mnras，510，2011）。
We describe a new polarized imaging pipeline implemented in the FHD software package. The pipeline is based on the optimal mapmaking imaging approach and performs horizon-to-horizon image reconstruction in all polarization modes. We discuss the formalism behind the pipeline's polarized analysis, describing equivalent representations of the polarized beam response, or Jones matrix. We show that, for arrays where antennas have uniform polarization alignments, defining a non-orthogonal instrumental polarization basis enables accurate and efficient image reconstruction. Finally, we present a new calibration approach that leverages widefield effects to perform fully-polarized calibration. This analysis pipeline underlies the analysis of Murchison Widefield Array (MWA) data in Byrne et al. (2022, MNRAS, 510, 2011).
