光学
计算机科学
合成孔径雷达
计算机视觉
图像(数学)
人工智能
航程(航空)
光圈(计算机存储器)
图像处理
物理
声学
材料科学
复合材料
作者
Lei Wan,Jin Wu,Danyang Li,Debin Wang,Changjun Ke
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2019-03-05
卷期号:58 (03): 1-1
标识
DOI:10.1117/1.oe.58.3.033101
摘要
A phenomenon, referred to as differential synthetic aperture ladar (DSAL) image inclination, is reported. The phenomenon states that in a stably operating DSAL system, the high-resolution image generated by DSAL technique is possibly inclined in the range direction. The range-inclined DSAL image does not change its resolution but makes the DSAL image differ from the real target structure, resulting in a kind of geometric deformation. Theoretical analysis shows that this inclination phenomenon originates from the geometric setting of the two receiving subapertures in the DSAL hardware and is independent of the target distance. By properly setting the subapertures, this phenomenon could be minimized. Detailed DSAL experimental results verified the theoretical interpretation. Methods to correct the inclined DSAL image are suggested.
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