| 线路电磁场测量数据的移动最小二乘拟合处理 |
| |
| 引用本文： | 张淮清,俞集辉. 线路电磁场测量数据的移动最小二乘拟合处理[J]. 高电压技术, 2010, 36(3): 661-665 |
| |
| 作者姓名： | 张淮清 俞集辉 |
| |
| 作者单位： | 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆,400044 |
| |
| 摘 要： | 为可靠评估输电线路周围电磁环境,针对有限的实测数据,将移动最小二乘近似方法引入到测量数据的拟合处理中。阐述了移动最小二乘逼近的原理,剖析其对数据移动加窗处理本质,给出了MLS应用于拟合的实施方案。具体以线路磁场测量数据为例,分别进行了分段拟合和MLS拟合处理,通过拟合曲线和误差的对比分析,反映MLS拟合具有参数调整方便、拟合曲线的连续性和光滑性好以及误差小的特点和优势。同时对权函数进行研究,给出参数选取的原则和方法。
|
| 关 键 词： | 移动最小二乘 曲线拟合 分段最小二乘 输电线路 电磁场 测量数据 |
Electromagnetic Measure Data Processing by Using Moving Least Square Method in Power Transmission Lines |
| |
| ZHANG Huai-qing , YU Ji-hui. Electromagnetic Measure Data Processing by Using Moving Least Square Method in Power Transmission Lines[J]. High Voltage Engineering, 2010, 36(3): 661-665 |
| |
| Authors: | ZHANG Huai-qing YU Ji-hui |
| |
| Affiliation: | State Key Laboratory of Transmission Equipment and System Safety and Electrical New Technology;Chongqing University;Chongqing 400044;China |
| |
| Abstract: | It is difficult to evaluate the electromagnetic environment around power transmission lines credibly by using limited measurement data,therfore,the moving least square method in fitting processing is proposed which is aimed to solve such problem.After a detailed discussion of moving least square approximation's principle,the essential of MLS is analyzed.The MLS is in fact a kind of windowed processing on measurement data.And the complete implementation scheme of MLS is given subsequently.Then the measuremen... |
| |
| Keywords: | moving least square curve fitting subsection least square power transmission lines electromagnetic field measure data |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
