基于距离多普勒概念的全息雷达成像算法

发布时间：2018-07-20 20:59

【摘要】：全息雷达成像系统具有电离辐射小、穿透衣服等优点,在人体安检等领域具有广泛的应用前景.然而,现有系统尚存在多运动目标补偿及快速成像能力不足的问题,限制了其在火车站等人流量大的场景中的应用.本文提出了一种基于距离多普勒概念的全息雷达成像方法,其优点是成像速度快、运动补偿方便,具有多运动目标快速成像的潜力.该方法利用了信号在时间采样和空间采样上的对称性,将合成孔径雷达成像中常用的距离多普勒算法引入全息雷达成像.本文对距离多普勒全息雷达成像算法进行了推导,通过仿真及试验,验证了该成像方法具有多目标运动补偿及快速成像的能力.
[Abstract]:Holographic radar imaging system has many advantages, such as low ionizing radiation, penetrating clothing and so on. However, the existing system still has the problems of multi-moving target compensation and insufficient fast imaging ability, which limits its application in the train station and other high traffic scenarios. In this paper, a holographic radar imaging method based on range Doppler concept is proposed. Its advantages are high imaging speed, convenient motion compensation and potential for fast imaging of multiple moving targets. Based on the symmetry of time sampling and spatial sampling, the range Doppler algorithm, which is commonly used in synthetic Aperture Radar (SAR) imaging, is introduced into holographic radar imaging. In this paper, the range Doppler holographic radar imaging algorithm is deduced. The simulation and experiment show that the imaging method has the ability of multi-target motion compensation and fast imaging.
【作者单位】：中国工程物理研究院电子工程研究所;中国工程物理研究院微系统与太赫兹研究中心;国防科技大学电子科学与工程学院ATR实验室;
【基金】：国家自然科学基金(61601424) 国家自然科学基金委员会与中国工程物理研究院联合基金(U1630101) 国家重点基础研究发展计划(2015CB755406)~~
【分类号】：TN957.52

【共引文献】