汽包水位数据处理中的变加权滤波算法

介绍了几种常见的离散数据滤波算法，分析了在电厂热工锅炉汽包水位中滤波测点数据的特性以及其对滤波算法的内在影响，在此基础上得出一种新的变加权离散滤波算法。在此算法中，滤波权值随着数据分布特性的不断变化而变化，从而保证在滤波过程中，滤波算法自始至终都能适应由于滤波环境对滤波数据造成的影响而带来的变化．以保证良好的滤波效果。实例数据仿真证明了此算法的有效性，能较好地适用于工程实际应用。

Method of Weighting Filtering in Data Processing of Boiler Water Level

A few and familiar methods of filtering are introduced. And the inside influence of the filtering methods which are infected by characteristic of the data in Boiler Water Level is analyzed. Then a new filtering method is presented,in which the weight is changed with data distributed characteristic, so as to guarantee the fine filtering effects in the whole filtering process. Finally, according to the simulation of the actual data, this method shows well, and is proper for engineering practice.