现代雷达2012，Vol.34Issue(1)：40-43,48,5.
基于时频变换的弹道目标微多普勒特征提取
Ballistic Target Micro-Doppler Feature Extration Method Based on the Time-frequency Analysis
摘要
Abstract
According to the mico-motion models of the ballistic targets, a micro-Doppler feature extraction method based on time-frequency analysis and moment invariant is proposed in this paper. In this approach, time-frequency analysis is applied at the very beginning. Then the Hu invariant moments are extracted from the time-frequency imagery. Simulations of precession warhead and swing bait are carried out, whereafter feature combinations are analyzed and the optimized feature vector is achieved. Furthermore, the feature robustness with different SNR is evaluated.关键词
微动目标识别/平滑伪Wigner-Ville分布/不变矩Key words
micro-motion target recognition/ SPWVD/ moment invariant分类
信息技术与安全科学引用本文复制引用
田巳睿,蒋跃红,郭汝江,施西野..基于时频变换的弹道目标微多普勒特征提取[J].现代雷达,2012,34(1):40-43,48,5.
