基于参数化时频分析的进动锥裙目标瞬时微多普勒频率提取方法

肖金国; 杜兰; 韩勋; 曹文杰; 刘宏伟

doi:10.11999/JEIT150505

基于参数化时频分析的进动锥裙目标瞬时微多普勒频率提取方法

doi: 10.11999/JEIT150505

基金项目:

国家自然科学基金(61271024, 61201292, 61322103)，高等学校博士学科点专项科研基金博导类基金(20130203110013)，陕西省自然科学基础研究计划(2015JZ016)

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出版历程
- 收稿日期: 2015-04-30
- 修回日期: 2015-09-06
- 刊出日期: 2016-01-19

Micro-Doppler Frequency Extraction for Cone-skirt Shaped Target with Precession Based on Parameterized Time-frequency Analysis

Funds:

The National Natural Science Foundation of China (61271024, 61201292, 61322103), The Foundation for Doctoral Supervisor of China (20130203110013), The Science Foundation of Shaanxi Province (2015JZ016)

摘要

摘要: 微动目标散射点的微多普勒对目标运动、结构参数的估计具有重要意义。该文针对表面光滑的锥裙目标，首先依据进动锥裙目标的等效散射点模型，推导出散射点的理论微多普勒曲线表达式。结合进动调制的锥裙目标微多普勒曲线为多阶正弦级数叠加的先验信息，提出一种基于参数化时频分析的进动锥裙目标微多普勒曲线提取方法。针对多分量信号组成的锥裙目标回波，该方法利用相干信号单距离多普勒干涉(CSRDI)方法估计锥旋频率，进而利用参数化时频分析估计散射点的微多普勒曲线，之后利用带阻滤波器分离估计得到的散射点回波信号。基于电磁仿真数据验证了所提方法的有效性。
- 锥裙目标 /
- 进动 /
- 微多普勒 /
- 参数化时频分析 /
- 相干信号单距离多普勒干涉方法
Abstract: The micro-Doppler signatures can be utilized to the estimation of the motion and structure parameters of the targets. In this paper, based on the effective point scatterer model of the cone-skirt shaped target, the formulas of micro-Doppler induced by the precession are derived. Since the micro-Doppler curves induced by the precession are in the forms of the multi-stage superimposed sine series for the cone-skirt shaped target, an approach to extract the micro-Doppler frequency based on the parameterized time-frequency analysis is proposed. In this method, the precession frequency is first estimated via the Coherent Single Range Doppler Interferometry (CSRDI) algorithm, then the micro-Doppler curve of each scatterer is estimated based on the parameterized time-frequency analysis, and finally the scatterers echoes can be separated with the band-stop filter. In the simulation experiments, the proposed method is evaluated based on the electromagnetic computation data.
- Cone-skirt shaped target /
- Precession /
- Micro-Doppler /
- Parameterized time-frequency analysis /
- Coherent Single Range Doppler Interferometry (CSRDI) algorithm

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参考文献(24)

LEI Peng, SUN Jinping, WANG Jun, et al. Analysis of radar micro-Doppler signatures from rigid targets in space based on inertial parameters[J]. IET Radar Sonar, Navigation, 2011, 5(2): 93-102.

CHEN V C, LI F, and WECHSLER H. Micro-Doppler effect in radar phenomenon, model and simulation study[J]. IEEE Transactions on Aerospace and Electronic Systems, 2006, 42(1): 2-21.

王兆云, 张兴敢, 柏业超. 基于微多普勒的锥体目标进动和结构参数估计[J]. 南京大学学报(自然科学), 2014, 50(2): 148-153.

WANG Zhaoyun, ZHANG Xinggan, and BAI Yechao. Precession and structural parameter estimation of cone- shaped target based on the micro-Doppler[J]. Journal of Nanjing University (Natural Sciences), 2014, 50(2): 148-153.

韩勋, 杜兰, 刘宏伟, 等. 基于时频分布的空间锥体目标微动形式分类[J]. 系统工程与电子技术, 2013, 35(4): 684-691.

HAN Xun, DU Lan, LIU Hongwei, et al. Classification of micro-motion form of space cone-shaped objects based on time-frequency distribution[J]. Systems Engineering and Electronics, 2013, 35(4): 684-691.

胡晓伟, 童宁宁, 董会旭, 等. 弹道中段群目标平动补偿与分离方法[J]. 电子与信息学报, 2015, 37(2): 291-296. doi: 10.11999/JEIT140494.

HU Xiaowei, TONG Ningning, DONG Huixu, et al. Translation compensation and resolution of multi-ballistic targets in midcourse[J]. Journal of Electronics Information Technology, 2015, 37(2): 291-296. doi: 10.11999/JEIT140494.

邵长宇, 杜兰, 李飞, 等. 基于多目标跟踪的空间锥体目标微多普勒频率提取方法[J]. 电子与信息学报, 2012, 34(12): 2972-2977. doi: 10.3724/SP.J.1146.2012.00656.

SHAO Changyu, DU Lan, LI Fei, et al. Micro-Doppler extraction from space cone target based on multiple target tracking[J]. Journal of Electronics Information Technology, 2012, 34(12): 2972-2977. doi: 10.3724/SP.J.1146.2012.00656.

李飞, 纠博, 邵长宇, 等. 目标微动参数估计的曲线跟踪算法[J]. 电波科学学报, 2013, 28(2): 278-284.

LI Fei, JIU Bo, SHAO Changyu, et al. Curve tracking based parameter estimation of micro-motion[J]. Chinese Journal of Radio Science, 2013, 28(2): 278-284.

韩勋, 杜兰, 刘宏伟. 空间锥体目标的平动补偿与微动特征提取方法[J]. 电波科学学报, 2014, 29(5): 815-821.

HAN Xun, DU Lan, and LIU Hongwei. Translation compensation and micro-motion feature extraction of space cone-shaped target[J]. Chinese Journal of Radio Science, 2014, 29(5): 815-821.

SHARMAN K C and FRIEDLANDER B. Time-varying autoregressive modeling of a class of non-stationary signals[C]. Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, Glasgow, Scotland, 1984: 227-230.

曹文杰, 张磊, 杜兰, 等. 基于瞬时频率估计的进动锥体目标微多普勒提取方法[J]. 电子与信息学报, 2015, 37(5): 1091-1096. doi: 10.11999/JEIT140985.

CAO Wenjie, ZHANG Lei , DU Lan, et al. Micro-Doppler extraction for cone-shaped target with precession based on instantaneous frequency estimation[J]. Journal of Electronics Information Technology, 2015, 37(5): 1091-1096. doi: 10. 11999/JEIT140985.

LI Changzhi, LING Jun, LI Jian, et al. Accurate doppler radar noncontact vital sign detection using the RELAX algorithm[J]. IEEE Transactions on Instrumentation and Measurement, 2010, 59(3): 687-695.

GAO Hongwei, XIE Lianggui, WEN Shuliang, et al. Micro-Doppler signature extraction from ballistic target with micro-motions[J]. IEEE Transactions on Aerospace and Electronic Systems, 2010, 46(4): 1969-1982.

喻荣梅, 张仕元, 肖健华. 弹道目标移动散射点模型的微多普勒特征研究[J]. 测控技术, 2014, 33(3): 154-156.

YU Rongmei, ZHANG Shiyuan, and XIAO Jianhua. Research on micro-Doppler signature of ballistic target based on moving scattering center model[J]. Measurement Control Technology, 2014, 33(3): 154-156.

杨扬. 参数化时频分析理论、方法及其在工程信号分析中的应用[D]. [博士论文], 上海交通大学, 2013.

关永胜, 左群声, 刘宏伟, 等. 空间进动目标微动参数估计方法[J]. 电子与信息学报, 2011, 33(10): 2427-2432. doi: 10.3724/SP.J.1146.2011.00117.

GUAN Yongsheng, ZUO Qunsheng, LIU Hongwei, et al. Micro-motion parameters estimation of space precession targets[J]. Journal of Electronics Information Technology, 2011, 33(10): 2427-2432. doi: 10.3724/SP.J.1146.2011.00117.

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