发明授权
- 专利标题： Method and system for determining parameters of sinusoidal signals
- 专利标题（中）： 用于确定正弦信号参数的方法和系统
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申请号： US13075558申请日： 2011-03-30
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公开(公告)号： US08972215B2公开(公告)日： 2015-03-03
- 发明人: Zafer Sahinoglu , Ming Sun , Koon Hoo Teo
- 申请人： Zafer Sahinoglu , Ming Sun , Koon Hoo Teo
- 申请人地址： US MA Cambridge
- 专利权人： Mitsubishi Electric Research Laboratories, Inc.
- 当前专利权人： Mitsubishi Electric Research Laboratories, Inc.
- 当前专利权人地址： US MA Cambridge
- 代理商 Dirk Brinkman; Gene Vinokur
- 主分类号： G01R23/02
- IPC分类号： G01R23/02 ; G01R25/00 ; H02J13/00 ; G06F19/00 ; G06F17/40 ; G01R23/15 ; G01R19/25
摘要：
At least one parameter of a signal is determined, wherein the signal is a sinusoidal signal including noise, wherein the parameter includes at least one of a frequency of the signal, and an angle of a phase of the signal. The frequency of the signal is determined iteratively based on a linear relationship among the frequency of the signal, samples of the noise, and samples of the signal using a statistical correlation among the samples of the noise. During a current iteration the statistical correlation is updated based on the frequency of the signal determined during a previous iteration, and the samples of the signal are updated with values of the signal during a current period of time.
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