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旋压
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《锻压工艺与设备:英文版》 2005年第4期43-46,共4页
关键词 旋压处理 锻工工艺 锻造设计 计算机模拟
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Improved SDT Process Data Compression Algorithm 被引量:3
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作者 冯晓东 Cheng +4 位作者 Changling Liu Changling Shao Huihe 《High Technology Letters》 EI CAS 2003年第2期91-96,共6页
Process data compression and trending are essential for improving control system performances. Swing Door Trending (SDT) algorithm is well designed to adapt the process trend while retaining the merit of simplicity. B... Process data compression and trending are essential for improving control system performances. Swing Door Trending (SDT) algorithm is well designed to adapt the process trend while retaining the merit of simplicity. But it cannot handle outliers and adapt to the fluctuations of actual data. An Improved SDT (ISDT) algorithm is proposed in this paper. The effectiveness and applicability of the ISDT algorithm are demonstrated by computations on both synthetic and real process data. By applying an adaptive recording limit as well as outliers-detecting rules, a higher compression ratio is achieved and outliers are identified and eliminated. The fidelity of the algorithm is also improved. It can be used both in online and batch mode, and integrated into existing software packages without change. 展开更多
关键词 SDT data compression process data treatment
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