Blog
About

1
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Ground Observation and Correction of P-band Radar Imaging Ionospheric Effects

      Read this article at

      ScienceOpenPublisherDOAJ
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          For high resolution space-borne P-band SAR system, ionospheric effects could cause serious phase errors. These errors are causally related to the radar frequency and the TEC of ionosphere and make the image quality degraded. To guarantee the image quality, the ionosphere errors must be emended. Based on the mismatched filter model caused by ionosphere, it is pointed out that accurate ionosphere TEC is the key for phase error correction, a high precision ionosphere TEC measurement method is further put forward by using the phase errors of SAR echoes, which is validated by processing the data of a ground based P-band radar with well focused radar image of the international space station obtained. The results indicate that the method can effectively increase the accuracy of ionosphere TEC estimation, and thus improve the radar imaging quality, it is applicable to low frequency space-borne SAR systems for reducing the ionosphere effects.

          Related collections

          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 February 2014
          : 3
          : 1
          : 45-52
          Affiliations
          [1 ] China Electronic Technology Group Corporation No.38 Research Institute
          [2 ] Institute of Astronautics and Aeronautics, Xidian University
          Article
          9c4edc1686574607b1c078efa0ecd4fe
          10.3724/SP.J.1300.2014.13144

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

          Comments

          Comment on this article