Observations of field-aligned irregularities in the ionosphere using multi-frequency range imaging technique

Jenn Shyong Chen, Yen Hsyang Chu, Ching Lun Su, Hiroyuki Hashiguchi, Ying Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Multi-frequency range imaging (RIM) implemented in the Middle and Upper atmosphere Radar (MUR; 34.85°N, 136.10°E) was utilized for the first time to observe the field-aligned irregularities (FAI) in the mid-latitude ionosphere. Five frequencies equally spaced between 46 MHz and 47 MHz were employed. Two types of RIM data collected with 16-element binary complementary codes and without phase codes were examined, respectively. It is shown that RIM works well and can resolve striation structures of FAI within the pulse length, thereby improving the range resolution of measurement greatly. However, duplicated echoes due to code-sidelobes appeared frequently at altitudes above and below the source regions. A procedure taking advantage of RIM to mitigate the code-sidelobe echoes is progressing.

Original languageEnglish
Title of host publication2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3929-3932
Number of pages4
ISBN (Electronic)9781479979295
DOIs
StatePublished - 10 Nov 2015
EventIEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Milan, Italy
Duration: 26 Jul 201531 Jul 2015

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2015-November

Conference

ConferenceIEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015
Country/TerritoryItaly
CityMilan
Period26/07/1531/07/15

Keywords

  • field-aligned irregularities
  • ionosphere
  • pulse coding
  • range imaging

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