J4 ›› 2013, Vol. 40 ›› Issue (1): 76-80.doi: 10.3969/j.issn.1001-2400.2013.01.014

• Original Articles • Previous Articles     Next Articles

Research on the solar image reconstruction method  based on compressive sensing

WANG Shuzhen;LI Li;ZOU Zijian;ZHANG Xiaoping   

  1. (School of Computer Science and Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2012-05-17 Online:2013-02-20 Published:2013-03-28
  • Contact: WANG Shuzhen E-mail:shuzhenwang@xidian.edu.cn

Abstract:

One of the important goals of the developing antenna array of solar imaging is how to decrease the cell number of the array, due to the contradiction between limited budget and massive antennas. Inspired by the ability of compressed sensing to recover exactly the original signal from highly sub-Nyquist-rate samples and the sparse characters of solar image, this paper proposes a solar image reconstruction method based on the compressive sensing theory. The effectiveness of this scheme is illustrated by experiments of both simulated solar image and real astronomical image. Results show superiority of the proposed method in the resolution of the adjacent point source, the shape maintenance of the extanded source and the dynamic range.

Key words: image reconstruction, compressive sensing, synthetic aperture, array configuration

CLC Number: 

  • TN95