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题名:
Low-cost high performance adaptive optics real-time controller in free space optical communication system
作者: Chen Shanqiu; Liu Chen; Zhao Enyi; Xian Hao; Xu Bing; Ye Yutang
出版日期: 2014
会议名称: Proceedings of SPIE: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGE PROCESSING AND PATTERN RECOGNITION
会议日期: 2014
DOI: 10.1117/12.2071100
通讯作者: Chen, SQ (reprint author), Chinese Acad Sci, Inst Opt & Elect, Key Lab Adapt Opt, Chengdu 610209, Peoples R China.
中文摘要: This paper proposed a low-cost and high performance adaptive optics real-time controller in free space optical communication system. Real-time controller is constructed with a 4-core CPU with Linux operation system patched with Real-Time Application Interface (RTAI) and a frame-grabber, and the whole cost is below $6000. Multi-core parallel processing scheme and SSE instruction optimization for reconstruction process result in about 5 speedup, and overall processing time for this 137-element adaptive optic system can reach below 100 us and with latency about 50 us by utilizing streamlined processing scheme, which meet the requirement of processing at frequency over 1709 Hz. Real-time data storage system designed by circle buffer make this system to store consecutive image frames and provide an approach to analysis the image data and intermediate data such as slope information.
英文摘要: This paper proposed a low-cost and high performance adaptive optics real-time controller in free space optical communication system. Real-time controller is constructed with a 4-core CPU with Linux operation system patched with Real-Time Application Interface (RTAI) and a frame-grabber, and the whole cost is below $6000. Multi-core parallel processing scheme and SSE instruction optimization for reconstruction process result in about 5 speedup, and overall processing time for this 137-element adaptive optic system can reach below 100 us and with latency about 50 us by utilizing streamlined processing scheme, which meet the requirement of processing at frequency over 1709 Hz. Real-time data storage system designed by circle buffer make this system to store consecutive image frames and provide an approach to analysis the image data and intermediate data such as slope information.
语种: 英语
卷号: 9301
ISSN号: 0277-786X
文章类型: 会议论文
页码: 930118
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7806
Appears in Collections:自适应光学技术研究室(八室)_会议论文

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作者单位: 1.[Chen Shanqiu
2.Liu Chen
3.Zhao Enyi
4.Xian Hao
5.Xu Bing] Chinese Acad Sci, Inst Opt & Elect, Key Lab Adapt Opt, Chengdu 610209, Peoples R China

Recommended Citation:
Chen Shanqiu,Liu Chen,Zhao Enyi,et al. Low-cost high performance adaptive optics real-time controller in free space optical communication system[C]. 见:Proceedings of SPIE: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGE PROCESSING AND PATTERN RECOGNITION. 2014.
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