Suppression of Log-Weibull Distributed Sea-Ice Clutter Using a Modified LOG/CFAR System

• Sayama Shuji

  Department of Communications Engineering, National Defense Academy

• Ishii Seishiro

  Department of Communications Engineering, National Defense Academy

• Sekine Matsuo

  Department of Communications Engineering, National Defense Academy

抄録

We observed sea-ice clutter using a millimeter wave radar with a frequency 34.860 GHz, a beamwidth 0.25°, and a plusewidth 30 ns which is located at the city of Mombetsu in Hokkaido. To determine the sea-ice clutter amplitude, we introduce the Akaike Information Criterion (AIC). It is discovered that the sea-ice clutter amplitudes obey the log-Weibull distribution with the shape parameters of 2.36 to 2.93 in terms of the temporal and small scale range fluctuations with which a constant false alarm rate (CFAR) is concerned. We propose a new log-Weibull/CFAR system uses a modified cell-averaging LOG/CFAR system. It is found that sea-ice clutter is suppressed with the improvement of more than 40 dB.

収録刊行物

• 電気学会論文誌．　Ａ

  電気学会論文誌．　Ａ 126 (6), 431-437, 2006

  一般社団法人 電気学会

キーワード

• millimeter wave radar
• sea-ice clutter
• log-Weibull distribution
• AIC
• CFAR

詳細情報

• CRID: 1390282679569390336
• NII論文ID: 10017582977
• NII書誌ID: AN10136312
• DOI: 10.1541/ieejfms.126.431
• ISSN: 13475533
• ISSN: 03854205
• NDL書誌ID: 7979276
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7979276
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/126/6/126_6_431/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可