空军工程大学学报（自然科学版）2012，Vol.13Issue(2)：74-78,5.DOI:10.3969/j.issn.1009-3516.2012.02.016
基于多项相位变换的FMCW-ISAR微多普勒特征提取方法
An Extracting Method of Micro- Doppler Features in FMCW- ISAR Based on Polynomial Phase Transform
摘要
Abstract
The micro - Doppler ( m - D) features and extracting method based on the FMCW - ISAR is mainly studied in the paper. The targets continuous moving in pulse repetition interval (PRI) will induce the main lobe widening and deviation of the range profile in FMCW - ISAR system. The induced error will influence the processing of the extraction of m - D features and imaging. The accurate micro motion features cannot be obtained by immediately utilizing existing method of extracting m - D features. To solve this problem, the detailed manifestation and characteristics of target`s m - D in FMCW - ISAR is analysed firstly. And then, combining with the extended Hough transform , an extracting method of m - D features parameters in FMCW - ISAR based on Polynomial Phase Transform is proposed in the paper. Finally, some results are given for validating the theoretical derivation and the effectiveness of the proposed method关键词
FMCW-ISAR/微多普勒特征/展宽和走动/多项相位变换Key words
FMCW - ISAR/ m - D features/ widening and deviation/ polynomial phase transform分类
电子信息工程引用本文复制引用
梁颖,田韵,张群,朱小鹏,何劲,朱丰..基于多项相位变换的FMCW-ISAR微多普勒特征提取方法[J].空军工程大学学报（自然科学版）,2012,13(2):74-78,5.基金项目
国家自然科学基金资助项目(60971100) （60971100）
