脉冲式超宽带生命探测雷达时间抖动抑制

梁福来; 李钊; 安强; 刘淼; 王健琪

doi:10.12000/JR14115

脉冲式超宽带生命探测雷达时间抖动抑制

DOI: 10.12000/JR14115

第四军医大学生物医学工程学院西安 710000

基金项目:

国家自然科学基金 (61327805, 61201382)资助课题

详细信息

作者简介:
梁福来(1985-),男,吉林榆树人,第四军医大学生物医学工程学院讲师,研究方向为生物雷达信号处理和穿墙成像等.E-mail:liangfulai@fmmu.edu.cn

通讯作者:
王健琪wangjq@fmmu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2014-10-17
- 修回日期: 2015-03-05
- 网络出版日期: 2015-08-28

Suppression of Time-domain Jitter of Impulse Radio Ultra-wide Band Radar

School of Biomedical Engineering, Fourth Military Medical University, Xi'an 710000, China

摘要

摘要: 脉冲式超宽带生命探测雷达的时间抖动将静态杂波变为无规律扰动的动态杂波,导致对强静态杂波进行传统去直流处理后仍存在较强残余,容易形成虚警并造成误判.该文首先分析了时间抖动对脉冲式超宽带生命探测雷达回波的影响,然后指出耦合回波间的相对时延能够反映雷达系统的时间抖动,在此基础上提出了一种基于耦合回波的时间抖动抑制方法.实测数据结果证明该文所提方法能够有效抑制强静态杂波的残余,进一步提高生命探测性能.
- 脉冲式超宽带雷达 /
- 生命探测 /
- 时间抖动 /
- 耦合回波
Abstract: For Impulse Radio Ultra-Wide Band (IR-UWB) radar, the time jitter transforms the static clutters to dynamic clutters. Thus, strong residue exists and false alarms form after traditional direct current suppression. The effect of the time-domain jitter on the life detection capacity is analyzed, and then the phenomenon that the relative time delays between the coupling echoes can reflect the time jitter is pointed out. Based on the coupling echo, a method of time jitter suppression is proposed. Experimental data demonstrate that the proposed method can effectively suppress the residue of strong static clutter, and further improve the life-detection capacity.
- Impulse Radio Ultra-Wide Band (IR-UWB) radar /
- Life detection /
- Time-domain jitter /
- Coupling echo

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参考文献(19)

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