【摘要】 围线积分双谱是一种典型的平移不变特征,其保留了双谱的相位信息,避免了积分过程中的插值处理,因此被广泛用于雷达HRRP(High Resolution Range Profile)目标识别。但现有的围线积分双谱仍不能充分简化计算。文章对其积分路径按照双谱对称性进行改进,并利用改进算法进行HRRP目标识别的仿真实验,结果表明,其不仅具有原算法较高的分类精度,也能够大大减少计算量,缩短特征提取时间。更多还原

【Abstract】 Surrounding-Line Integral Bispectrum is a kind of shift invariance feature.It keeps the phase information of Bispectrum and avoids interpolation approach.Therefore it is wildly used in target recognition based on HRRP.But the Surrounding-Line Integral Bispectrum feature extraction method cannot reduce the amount of computation well.To solve the problem,this paper presents a method of Modified Surrounding-Line Integral Bispectrum.It improves the integral path of Surrounding-Line Integral Bispectrum by the symmetry of bispectrum.Finally,it is applied to the feature extraction of radar HRRP target recognition.Simulation results show that it not only keeps a high precision,but also reduces the amount of computation.更多还原