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Pipeline structure for real-time centroid calculation of Hartmann wavefront sensor with horizontal multi-channel pixel output
Wang Shaobai; Wang Chunhong; Rao Changhui
Volume8194
2011
Language英语
Indexed ByEi
Subtype会议论文
AbstractIn this paper, a real-time pipeline centroid calculating structure based on programmable logic devices is designed for Hartmann wavefront sensor with horizontal multi-channel pixel output. The pipeline consists of modularized cells including multiplier groups, accumulation cells, dividers and corresponding control units. The structure is specially designed to deal with simultaneously output pixels which belong to two adjacent subapertures as well as those pixels belong to the same subaperture. When the number of output channels is 8 and pixels output at 80MHz clock frequency, centroid calculation latency in simulation is less than 0.5μs.; In this paper, a real-time pipeline centroid calculating structure based on programmable logic devices is designed for Hartmann wavefront sensor with horizontal multi-channel pixel output. The pipeline consists of modularized cells including multiplier groups, accumulation cells, dividers and corresponding control units. The structure is specially designed to deal with simultaneously output pixels which belong to two adjacent subapertures as well as those pixels belong to the same subaperture. When the number of output channels is 8 and pixels output at 80MHz clock frequency, centroid calculation latency in simulation is less than 0.5μs.
Conference NameProceedings of SPIE - The International Society for Optical Engineering, v 8194, 2011, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications
Conference Date2011
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7762
Collection自适应光学技术研究室(八室)
Corresponding AuthorWang Shaobai
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Wang Shaobai,Wang Chunhong,Rao Changhui. Pipeline structure for real-time centroid calculation of Hartmann wavefront sensor with horizontal multi-channel pixel output[C],2011.
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