电子学报2011，Vol.39Issue(7)：1712-1715,4.
一种基于经验模态分解的锥体目标雷达微动特征提取新方法
A New Method of Radar Micro-motion Feature Extraction of Cone Target Based on Empirical Mode Decomposition
摘要
Abstract
This paper studies on the cone target. Firstly, the modulating function of a precession target on the radar is analyzed. Then, the decomposition method of multi-component sinusoidal frequency modulated signal based on empirical mode decomposition (EMD) is studied. The instantaneous frequency of each intrinsic mode function is gained by using Short Time Fourier Transform (STFT). The precession features of precession period, precession angle, micro-motion range ratio of different scatters and geometry feature of aspect ratio are extracted. Finally, the results of feature extraction by utilizing the darkroom measurement are shown in figures, which validate the ideas.关键词
微动特征提取/锥体目标/经验模态分解/瞬时频率Key words
micro-motion feature extraction/cone target/empirical mode decomposition/instantaneous frequency分类
信息技术与安全科学引用本文复制引用
牛杰,刘永祥,秦玉亮,姜卫东,黎湘..一种基于经验模态分解的锥体目标雷达微动特征提取新方法[J].电子学报,2011,39(7):1712-1715,4.基金项目
国家杰出青年基金(No.61025006) （No.61025006）
国家自然科学基金(No.60872134,No.61072117) （No.60872134,No.61072117）
