三変数ワイブル分布を用いたシークラッタの分布推定

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2018/05/01

タイトル(英語): Distribution Estimation of Sea Clutter using Three-parameter Weibull Distribution

著者名: 佐山　周次（防衛大学校通信工学科）

著者名(英語): Shuji Sayama (Department of Communications Engineering, National Defense Academy)

キーワード: Xバンドレーダ，シークラッタ，三変数ワイブル分布，MDL原理　　X-band radar，sea clutter，three-parameter Weibull distribution，MDL principle

要約(英語): I have observed sea clutter using an X-band radar with a frequency of 9.41GHz, a beamwidth of 1.0°, a pulsewidth of 0.5μs, and a pulse-repetition frequency of 1,600Hz. To investigate sea clutter amplitude statistics, I introduce three-parameter Weibull distribution and the Minimum Description Length (MDL) principle, which is more rigorous comparison between the distributions with parameters of different number than the Akaike Information Criterion (AIC). I have found that the sea clutter amplitude obey the log-Weibull distribution with the shape parameter of c = 13.36 for entire data and the Weibull, three-parameter Weibull, and log-Weibull distributions with the shape parameters of c = 3.18 to 3.96, c = 4.44 to 6.68, and c = 8.70 to 20.48, respectively, for data within the beam width of an antenna. The number of best fit of the Weibull, three-parameter Weibull, and log-Weibull distributions to data are 6, 9, and 6, respectively, from 21 range sweep numbers.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.5 （2018） 特集：イノベーションを創出する最新の計測技術2017

本誌掲載ページ: 224-229 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/138/5/138_224/_article/-char/ja/