Sバンドレーダによって観測された市街地と丘陵地のグランドクラッタの統計的性質

概要

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We have observed ground clutter from town and hill using an S-band radar with a frequency of 3.05GHz, a beamwidth of 1.8°, and a pulsewidth of 1.0μs, which is located on the campus of the National Defense Academy in Yokosuka-city. To investigate such ground clutter amplitude statistics, we introduce a compound distribution and the Akaike Information Criterion (AIC). We have found that the ground clutter amplitude obey the compound log-normal distribution with the shape parameters of σ1=0.424, σ2=0.232 for entire data and the compound log-normal, and compound log-Weibull distributions with the shape parameters of σ1=0.217 to 0.429, σ2=0.028 to 0.410 and c1=9.36 to 11.20, c2=17.00 to 23.81, respectively, for data within the beam width of an antenna. The number of the smallest AIC (MAIC) of the compound log-normal, and log-Weibull distributions are 8, and 4, respectively.
2011-11-01