期刊文献+

基于多项相位变换的FMCW-ISAR微多普勒特征提取方法 被引量:7

An Extracting Method of Micro-Doppler Features in FMCW-ISAR Based on Polynomial Phase Transform
下载PDF
导出
摘要 主要研究了调频连续波逆合成孔径雷达(FMCW-ISAR)目标的微多普勒特征及其提取方法。在FMCW-ISAR系统中,脉冲持续时间内微动目标的连续运动将导致一维距离像产生走动和主瓣展宽,由此引入的误差将影响到后续的微多普勒特征提取以及成像,利用现有的微多普勒特征提取方法不能得到真实的目标微动特征。针对该问题,本文首先详细分析了FMCW-ISAR目标微多普勒效应的具体表现形式及其特点,应用多项相位变换的方法对导致一维距离像主瓣展宽和走动的误差相位进行了补偿,结合扩展Hough变换,提出了一种基于多项相位变换的FMCW-ISAR微多普勒特征参数提取方法。论文所提方法在微多普勒曲线产生展宽和走动的情况下,能准确提取出旋转目标的微多普勒特征参数,最后仿真实验验证了理论分析结果及所提方法的有效性。 The micro-Doppler(m-D) features and extracting method based on the FMCW-ISAR is mainly studied in the paper.The target's 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
出处 《空军工程大学学报(自然科学版)》 CSCD 北大核心 2012年第2期74-78,共5页 Journal of Air Force Engineering University(Natural Science Edition)
基金 国家自然科学基金资助项目(60971100)
关键词 FMCW-ISAR 微多普勒特征 展宽和走动 多项相位变换 FMCW-ISAR m-D features widening and deviation polynomial phase transform
  • 相关文献

参考文献12

二级参考文献74

共引文献110

同被引文献59

  • 1江志红,赵懿,皇甫堪,万建伟,程翥.调频连续波SAR的研究进展[J].现代雷达,2008,30(2):20-24. 被引量:19
  • 2陈行勇,黎湘,郭桂蓉,姜斌.基于旋翼微动雷达特征的空中目标识别[J].系统工程与电子技术,2006,28(3):372-375. 被引量:22
  • 3张亚标,朱振波,汤子跃,苑秉成.双站逆合成孔径雷达成像理论研究[J].电子与信息学报,2006,28(6):969-972. 被引量:31
  • 4庄钊文,刘永祥,黎湘.目标微动特性研究进展[J].电子学报,2007,35(3):520-525. 被引量:128
  • 5Chen V C, Li F, Ho S, et al. Micro-Doppler effect in radar-phe- nomenon, model, and simulation study[J]. IEEE Trans. on Aerospace and Electronic Systems, 2006, 42(1) : 1 - 21. 被引量:1
  • 6Chen V C, Miceli W J, Himed B. Micro-Doppler analysis in ISAR-review and perspectives[ C] // Proc. of the International Radar Conference ,2009 ; 1 - 6. 被引量:1
  • 7Chen V C, Lipps R. ISAR imaging of small craft with roll, pitch and yaw analysis[C]//Proe, of the Record of the IEEE Inter- national Radar Conference, 2000 : 493 - 498. 被引量:1
  • 8Bai X, Zhou F, Xing M, et al. Scaling the 3-D image of spinning space debris via bistatie ISAR[J]. IEEE Geoscience and Remote Sensing Letters, 2010,7(3) : 430 - 434. 被引量:1
  • 9Pan X Y, Wang W, Feng D J, et al. Rotational micro-motion modulated jamming for countering ISAR based on intermittent sampling repeater[J]. Progress in Electromagnetics Research, 2013, 36: 41-56. 被引量:1
  • 10Clss C I D, Thayaparan T. Separation of target rigid body and micro-Doppler effects in ISAR imaging[J]. IEEE Trans. on Aerospace and EZectronic Systems ,2006, 42(4), 1496 - 1506. 被引量:1

引证文献7

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部