Phase Calibration Using Satellite as Calibrator for Mingantu Spectral Radioheliograph

doi:10.3969/j.issn.0372-2112.2019.06.028

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Phase Calibration Using Satellite as Calibrator for Mingantu Spectral Radioheliograph

更新时间：2025-07-02

- Phase Calibration Using Satellite as Calibrator for Mingantu Spectral Radioheliograph
- Acta Electronica Sinica Vol. 47, Issue 6, Pages: 1384-1387(2019)
- 作者机构：
  
  1. 中国科学院国家天文台,北京,100101
  2. 中国科学院太阳活动重点实验室,北京,100101
  3. 中国科学院大学,北京,100049
  4. 中国科学院国家天文台,北京,100101
  5. 中国科学院太阳活动重点实验室,北京,100101
  6. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.11433006, No.11790301, No.11790305, No.11773043)
- DOI：10.3969/j.issn.0372-2112.2019.06.028
  CLC： TN911.23
- Published Online：25 June 2019，
  
  Published：2019
- 稿件说明：
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Phase Calibration Using Satellite as Calibrator for Mingantu Spectral Radioheliograph[J]. Acta Electronica Sinica, 2019, 47(6): 1384-1387.
DOI：

Phase Calibration Using Satellite as Calibrator for Mingantu Spectral Radioheliograph[J]. Acta Electronica Sinica, 2019, 47(6): 1384-1387. DOI： 10.3969/j.issn.0372-2112.2019.06.028.

摘要

明安图射电频谱日像仪采用综合孔径技术成像的太阳专用射电望远镜，为充分利用望远镜天线单元数量，采用非冗余基线设计，这就要求需要外部信号源进行系统校准.本文介绍了利用同步轨道卫星作为校准源，对明安图射电频谱日像仪进行相位校准的原理，过程和相应的观测结果，分析了卫星作为校准的优缺点、处理办法以及在对图像质量的影响.

Abstract

Mingantu Spectral Radioheliograph (MUSER) is a solar dedicated interferometric array using synthetic aperture imaging technology.There aren't redundant baselines in MUSER in order to make full use of these antennas

which requires an external signal source to carry out system calibration.This paper describes phase calibration of MUSER by using the geostationary satellite as calibrator.Some observations and results are introduced as well.We analyzed the advantages and disadvantages of the satellite as a calibrator

as well as the effect on image quality.

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