## 基于SEGE法的显著误差检测技术研究

Title    Research of gross error detection based on SEGE
Abstract
Due to the complexity of industrial processes ,data detected by instrument measurement often exist gross error. The failure of the instrument itself, the decline of the instrument measurement accuracy ,and the leak will lead to  gross error .SEGE (Simultaneous Estimation of Gross Errors) is the simultaneous identification and simultaneous compensation method used for steady-state process ,by the various combinations of alternative gross error set ,select the best combination to meet the conditions ,and at the same time detecting all the location and magnitude of the gross error. This paper first introduces the basic algorithm of steady-state data reconciliation ,on this basis, I will introduce the principles of SEGE method, finally ,use the Matlab to write appropriate procedures and simulation examples in order to test the effect of SEGE method.

Keywords  Gross error detection  Data reconciliation  Simultaneous Estimation of Gross Errors
目   次
1  引言 1
1.1  关于数据校正技术1
1.2  数据校正技术的发展趋势1
2  显著误差检测概述2
2.1  显著误差的定义3
2.2  显著误差的检测模型4
3  SEGE同步数据协调和测量偏差检测算法6
3.1  基本稳态数据协调算法6
3.2  SEGE同步测量偏差和泄漏递归寻找策7
3.3  SEGE同步数据协调和测量偏差检测算法8
3.4  SEGE算法总结12
4  Matlab仿真及分析12
4.1  全局检测12
4.2  建立误差候选集13
4.3  找出最小股流组合14
5  仿真与总结16
6  SEGE法的改进20
结论 22

1  引言
1．1  关于数据校正技术[1]
在工业过程的监测、控制、优化甚至生产决策中，过程数据扮演着极其重要的角色。但是由于工业过程的复杂性和不确定性，用仪表所检测到的测量数据中往往存在显著误差的干扰，这就会对过程数据的控制、优化、建模和决策性能受到影响。

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