发明名称 |
FUNDAMENTAL FREQUENCY STABILITY AND HARMONIC ANALYSIS |
摘要 |
A method, apparatus and computer readable medium for estimating a frequency of an electrical signal are disclosed. The method comprises taking a number of samples of an electrical signal throughout a main sampling window; 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, 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; and determining if the fundamental frequency is stable throughout the main window by comparing the estimated fundamental frequency of each subwindow. |
申请公布号 |
US2015355249(A1) |
申请公布日期 |
2015.12.10 |
申请号 |
US201314653811 |
申请日期 |
2013.10.22 |
申请人 |
CHANDEAU Gwladys Fabienne Alice;GUABERT Jean-Paul;TISSIER Jean-Francois;ITRON FRANCE |
发明人 |
CHANEDEAU Gwladys Fabienne Alice;GAUBERT Jean-Paul;TISSIER Jean-Francois |
分类号 |
G01R23/02 |
主分类号 |
G01R23/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method for estimating a frequency of an electrical signal, the method comprising:
taking a number of samples of an electrical signal throughout a main sampling window; 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, 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; and determining if the fundamental frequency is stable throughout the main window by comparing the estimated fundamental frequency of each subwindow. |
地址 |
Blaslay FR |