For the extraction of weak micro-motion features of micro-rotor UAV, the feature extraction method of RSP-CFD (Reassigned Spectrogram-Cadence Frequency Diagram, RSP-CFD) is proposed in this paper. First, the high-resolution time frequency analysis method RSP is used to...
特征提取参数估计准确地估计小型旋翼无人机的微动参数对无人机的识别具有重要意义,针对小型旋翼无人机弱微动特征的提取问题,本文提出了 RSP-CFD(Reassigned Spectrogram-Cadence Frequency Diagram,RSP-CFD)的特征提取方法.首先采用高分辨时频分析方法RSP分析旋翼无人机的微动特性,其次在RSP的基础上利用CFD方法提取旋翼.....