基于雷达距离像的锥体目标进动参数估计方法  

Precession Parameters Estimation of Cone Target Based on Radar Profiles

作　　者：宁超 黄璟 朱勇 肖志河 

机构地区：[1]电磁散射重点实验室,北京100854

出　　处：《现代防御技术》2014年第4期114-118,124,共6页Modern Defence Technology

摘　　要：提出了一种基于雷达一维距离像序列和雷达测轨信息的飞行进动锥体目标的微动参数估计方法。首先对飞行锥体多次观测,得到各个时刻目标的雷达高分辨一维距离像,提取距离像的径向长度。再综合利用各个时刻的距离像径向长度、锥体质心的轨道位置信息,用最优估计的方法提取进动周期、进动角、锥体高度等主要参数。为了提高参数估计的效率,采用分步估计的方法,先利简化的数学模型粗估,再基于粗估结果利用精确模型二次估计,得到最终结果。对仿真数据进行了处理分析,证明了所提出方法的正确性和有效性。A new method of precession parameter estimation of flying cone targets based on radar high resolution range profile （HRRP） is proposed.Firstly,we integrated the HRRP series of a cone target for duration,and obtained the HRRPs length.Then,the HRRPs length and the target locations were analyzed by using the optimal estimation algorithm.So,the precession parameters （precession period,precession angle and cone height） can be estimated.The stepped estimation is applied to improve the efficiency of estimation,where the mathematical model should be initially simplified to estimate the rough values of parameters.Then,the rough values were put into the mathematical precise model and the research range was reduced to obtain the final results.The effectiveness of proposed method has been verified by applying simulation data.

关 键 词：一维距离像 进动 参数估计 

分 类 号：TN957.51[电子电信—信号与信息处理]