CAJ | 학술논문

高分辨距离像获取简单且能够提供目标部分几何结构信息,在导弹目标识别中有着重要的应用。针对高分辨距离像姿态敏感性问题,采用基于逆合成孔径雷达（ISAR）像提取导弹目标的二维散射中心分布,具体分析各姿态下散射中心在距离分辨单元内的分布情况,计算高分辨距离像（HRRP）突变时各散射中心之间的相位关系。结合HRRP的数学模型,解析了突变现象的产生原因,得知距离分辨单元内散射中心点之间的干涉会导致HRRP严重的姿态敏感,并经过实验分析了距离分辨单元内散射中心对HRRP的具体影响。
고분변거리상획취간단차능구제공목표부분궤하결구신식,재도탄목표식별중유착중요적응용。침대고분변거리상자태민감성문제,채용기우역합성공경뢰체（ISAR）상제취도탄목표적이유산사중심분포,구체분석각자태하산사중심재거리분변단원내적분포정황,계산고분변거리상（HRRP）돌변시각산사중심지간적상위관계。결합HRRP적수학모형,해석료돌변현상적산생원인,득지거리분변단원내산사중심점지간적간섭회도치HRRP엄중적자태민감,병경과실험분석료거리분변단원내산사중심대HRRP적구체영향。
High Range Resolution Profile（HRRP） is easily to obtain, and can provide geometric structure information of the target,it has important applications in missile target recognition. For analyzing the gesture sensitivity of HRRP, the two-dimensional scattering center of missile target distribution based on ISAR is extracted,and then the distribution of scattering centers in each posture in the range resolution cells is analyzed specifically. After that, the phase relationship between the various scattering centers is calculated when the HRRP is in mutation,and at last combining with HRRP mathematical model,the cause of the mutation is analyzed. The analysis re- sult show that the interference between the scattering centers within the range resolution unit leads to HRRP attitude sensitivity. The specific impact of the scattering centers within the range resolution unit on HRRP is analyzed through the experiment.