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Low-cost high performance adaptive optics real-time controller in free space optical communication system
Chen Shanqiu; Liu Chen; Zhao Enyi; Xian Hao; Xu Bing; Ye Yutang; Chen, SQ (reprint author), Chinese Acad Sci, Inst Opt & Elect, Key Lab Adapt Opt, Chengdu 610209, Peoples R China.
Volume9301
Pages930118
2014
Language英语
ISSN0277-786X
DOI10.1117/12.2071100
Subtype会议论文
AbstractThis 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.; 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.
Conference NameProceedings of SPIE: INTERNATIONAL SYMPOSIUM ON OPTOELECTRONIC TECHNOLOGY AND APPLICATION 2014: IMAGE PROCESSING AND PATTERN RECOGNITION
Conference Date2014
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7806
Collection自适应光学技术研究室(八室)
Corresponding AuthorChen, SQ (reprint author), Chinese Acad Sci, Inst Opt & Elect, Key Lab Adapt Opt, Chengdu 610209, Peoples R China.
Affiliation1.[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
GB/T 7714
Chen Shanqiu,Liu Chen,Zhao Enyi,et al. Low-cost high performance adaptive optics real-time controller in free space optical communication system[C],2014:930118.
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