文档介绍：第28卷第6期 电光与控制 Vol. 28 No. 6
202so as to weaken its influence on the performance of Bi-orthogonal Fourier Transform ( BFT ) and
Concise Fractional Fourier Transform ( CFRFT ). BFT- CFRFT algorithm is used to detect small targets,
which transforms the two-dimensional search of the traditional algorithm into two one-dimensional searches,
so that the amount of computation is greatly reduced・ IPIX measurement data is used to verify the new
algorithm, and the experimental results show that: 1) The new algorithm can effectively suppress sea chiller,
greatly reduce the amount of computation, and improve the accuracy and timeliness of target detection with
the best performance in HH polarization conditions ；2) The new algorithm has high detection efficiency and
stable performance, which can be widely used in practical projects・
Key words: sea clutter ； CEMD ； RobustICA ； Bi-orthogonal Fourier Transform ( BFT ) ； Concise
Fractional Fourier Transform ( CFRFT)
决的关键,找到高效稳定的目标检测算法是极其重要
o引言
的。小目标的雷达散射截面积（RCS）极小，在强海杂
海杂波中小目标检测在海上安全、搜救以及监控 波背景下，回波的信杂比很低，小目标检测难度变大。