高速旋转目标三维成像的新算法

doi:10.3969/j.issn.1001-506X.2010.06.014

Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (6): 1171-1175.doi: 10.3969/j.issn.1001-506X.2010.06.014

高速旋转目标三维成像的新算法

张龙1,2,王琦3,李亚超2

1. 西安工程大学电子信息学院，陕西西安 710048； 
2. 西安电子科技大学雷达信号处理国家重点实验室，陕西西安 710071； 
3. 中国航天科工集团 8511研究所，江苏南京 210007

出版日期:2010-06-28 发布日期:2010-01-03

New 3D imaging algorithm for highspeed spinning targets

ZHANG Long1,2,WANG Qi3,LI Ya-chao2

1. Coll. of Electronics and Information, Xi’an Polytechnic Univ., Xi’an 710048, China; 2. National Lab for Radar Signal Processing, Xidian Univ., Xi’an 710071, China; 
3. Inst. 8511, China Aerospace Science and Technology Corporation, Nanjing 210007, China

Online:2010-06-28 Published:2010-01-03

摘要/Abstract

摘要：

针对高速旋转目标三维成像的问题，提出一种有效的GRTCLEAN方法。该方法首先进行平动补偿,将高速目标的回波信号转换为高速转台模型。然后利用基于旋转散射点各次距离像回波的变化曲线所具有的特征，采用广义Radon变换(generalized Radon transform, GRT)得到目标散射点空间位置的近似估计。最后把该目标参数估计方法与修正的CLEAN技术相结合得到每个散射点的特征估计,并进一步得到目标三维像。理论推导与仿真结果验证了该算法的有效性。

Abstract:

A new effective 3D imaging algorithm, GRTCLEAN algorithm, for highspeed spinning targets is proposed. First, translational motion compensation for a highspeed target signal is made to translate it into turntable one.Then based on the feature of varying curves of spinning scatterers’profiles, the generalized Radon transformation (GRT) is used to obtain space position estimate of target scatterers. Finally, the target parameter estimation method is combined with modified CLEAN technology to obtain feature estimation of each scatterer, thus a 3D target image can be obtained. Theoretical derivation and simulation results verify the effectualness of this algorithm.

张龙,王琦,李亚超. 高速旋转目标三维成像的新算法[J]. Journal of Systems Engineering and Electronics, 2010, 32(6): 1171-1175.

ZHANG Long,WANG Qi,LI Ya-chao. New 3D imaging algorithm for highspeed spinning targets[J]. Journal of Systems Engineering and Electronics, 2010, 32(6): 1171-1175.

高速旋转目标三维成像的新算法

New 3D imaging algorithm for highspeed spinning targets

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