Analysis of sea clutter amplitude distribution characteristics of 77 GHz millimeter wave radar
ZHANG Huaqing
WANG Yunhua
ZHANG Yuting
Abstract：The study of the statistical characteristics of the sea clutter amplitude of the high-resolution millimeter wave radar is of great significance to improve the detection technology of small targets at sea,but there are relatively few studies on this problem.This paper was based on a large number of measured data on the amplitude statistical characteristics of the calm sea surface and the broken sea sur-face under the action of the 77GHz radar.Firstly,the logarithmic accumulation parameter estimation formula of the classical K distribution model was innovatively derived,and then the commonly used Rayleigh distribution,lognormal distribution,weibull distribution,generalized gamma distribution,K distribution moment estimation,maximum likelihood estimation and logarithmic accumulation method estimation method were analyzed in combination with the measured data,and the best amplitude fitting distribution under different scenarios was discussed.The results showed that the K distribution model of the logarithmic accumulation method estimated by the logarithmic accumulation method under the calm sea surface was optimal,followed by the generalized gamma distribution,the lognormal distribu-tion under the broken sea surface,and the generalized gamma distribution was the best under the bro-ken sea surface.
Keywords：millimeter wavesea cluttershort-range radaramplitude fitting modellogarithmic cu-mulative method
Publication Date：2025-10-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：10( 1-10 )