发明名称 |
Fundamental frequency stability and harmonic analysis |
摘要 |
<p>The method comprises taking a number of samples of an electrical signal throughout a main sampling window (S1); dividing the number of samples taken throughout the main sampling window into a plurality of groups of consecutive samples, each group of consecutive samples forming a subwindow (S2), wherein each subwindow includes a minimum number of the number of samples required to provide a required level of accuracy for estimating the fundamental frequency of the electrical signal; estimating, for each subwindow, the fundamental frequency of the electrical signal based on the group of consecutive samples of the respective subwindow (S3); and determining if the fundamental frequency is stable throughout the main window by comparing the estimated fundamental frequency of each subwindow (S4).</p> |
申请公布号 |
EP2746785(A1) |
申请公布日期 |
2014.06.25 |
申请号 |
EP20120306629 |
申请日期 |
2012.12.19 |
申请人 |
ITRON FRANCE |
发明人 |
CHANEDEAU, GWLADYS FABIENNE ALICE;GAUBERT, JEAN-PAUL;TISSIER, JEAN-FRANCOIS |
分类号 |
G01R19/25;G01R23/02;G01R23/20 |
主分类号 |
G01R19/25 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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