摘要
针对双基地逆合成孔径雷达(ISAR)对空间目标单次观测时间有限,不容易获得长时间多视角观测下的回波数据,提出了利用空间目标运动的轨道重访特性,对多次观测数据进行融合成像。该方法给出了多圈次观测图像融合的原理,并通过后向投影算法(Back Projection,BP)对回波相位补偿后的数据进行相干融合。仿真结果表明,该方法能有效抵消噪声对成像的影响,得到高质量的ISAR二维像。
The time of single observation of space target of bistatic ISAR is limited,and it is hard to get a long time multi-angle observations echo data.An image fusion method of multipass observation data was proposed. By taking advantage of the orbit revisit character of space target,the principle of multipass observation image fu-sion was presented.And the echo data after phase compensation was coherent integrated through back proj ection algorithm.Finally,a single-scatter and multi-scatters model simulation experiment was carried out,and simula-tion results showed that the proposed method could offset the influence of noise and get high quality image.
出处
《探测与控制学报》
CSCD
北大核心
2014年第2期30-35,共6页
Journal of Detection & Control
基金
国家自然科学基金资助(51107147)
作者简介
郭宝峰（1987-），男，河南睢县人，博士研究生，研究方向：雷达信号处理，雷达成像技术。E-mail：guobaofeng870714@126．com
