首页|期刊导航|高技术通讯（英文版）|Improved SDT Process Data Compression Algorithm

Improved SDT Process Data Compression Algorithm

高技术通讯（英文版）2003，Vol.9Issue(2)：91-96,6.

Improved SDT Process Data Compression Algorithm

作者信息

1. Automation Institute, Shanghai Jiaotong University, Shanghai 200030, P.R. China;Automation Institute, Shanghai Jiaotong University, Shanghai 200030, P.R. China;Automation Institute, Shanghai Jiaotong University, Shanghai 200030, P.R. China;Automation Institute, Shanghai Jiaotong University, Shanghai 200030, P.R. China
折叠

摘要

Abstract

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.

关键词

SDT/data compression/process data treatment

Key words

SDT/data compression/process data treatment

分类

信息技术与安全科学

引用本文复制引用

..Improved SDT Process Data Compression Algorithm[J].高技术通讯（英文版）,2003,9(2):91-96,6.

基金项目

The authors would like to acknowledge the support from Project "973" of the State Key Fundamental Research under grant G1998030415. （）

高技术通讯（英文版）

OAEI

ISSN：1006-6748

访问量2

下载量0

段落导航