Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Model-based restoration using light vein for range-gated imaging systems | |
Wang, C. J.; T. Sun; T. F. Wang; R. Wang; J. Guo and Y. Z. Tian | |
2016 | |
发表期刊 | Applied Optics |
卷号 | 55期号:26 |
摘要 | The intrinsic hysteresis nonlinearity of the piezo-actuators can severely degrade the positioning accuracy of a tip-tilt mirror (TTM) in an adaptive optics system. This paper focuses on compensating this hysteresis nonlinearity by feed-forward linearization with an inverse hysteresis model. This inverse hysteresis model is based on the classical Presiach model, and the neural network (NN) is used to describe the hysteresis loop. In order to apply it in the real-time adaptive correction, an analytical nonlinear function derived from the NN is introduced to compute the inverse hysteresis model output instead of the time-consuming NN simulation process. Experimental results show that the proposed method effectively linearized the TTM behavior with the static hysteresis nonlinearity of TTM reducing from 15.6% to 1.4%. In addition, the tip-tilt tracking experiments using the integrator with and without hysteresis compensation are conducted. The wavefront tip-tilt aberration rejection ability of the TTM control system is significantly improved with the -3 dB error rejection bandwidth increasing from 46 to 62 Hz. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) |
文章类型 | 期刊 |
收录类别 | SCI ; EI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/57218 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Wang, C. J.,T. Sun,T. F. Wang,et al. Model-based restoration using light vein for range-gated imaging systems[J]. Applied Optics,2016,55(26). |
APA | Wang, C. J.,T. Sun,T. F. Wang,R. Wang,&J. Guo and Y. Z. Tian.(2016).Model-based restoration using light vein for range-gated imaging systems.Applied Optics,55(26). |
MLA | Wang, C. J.,et al."Model-based restoration using light vein for range-gated imaging systems".Applied Optics 55.26(2016). |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Model-based restorat(723KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论