发明授权
- 专利标题: Measuring the phase of received signals
- 专利标题(中): 测量接收信号的相位
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申请号: US13525234申请日: 2012-06-15
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公开(公告)号: US09182747B2公开(公告)日: 2015-11-10
- 发明人: Jean Seydoux , Libo Yang , Mark Kuchenbecker , Reza Taherian , Emmanuel Legendre , Jian Yang , Mark A. Fredette
- 申请人: Jean Seydoux , Libo Yang , Mark Kuchenbecker , Reza Taherian , Emmanuel Legendre , Jian Yang , Mark A. Fredette
- 申请人地址: US TX Sugar Land
- 专利权人: Schlumberger Technology Corporation
- 当前专利权人: Schlumberger Technology Corporation
- 当前专利权人地址: US TX Sugar Land
- 代理商 John Vereb
- 主分类号: G04G7/00
- IPC分类号: G04G7/00 ; G06F19/00 ; G01V3/28
摘要:
The present disclosure relates to a method to determine the phase of a signal when transmitter and receiver circuits use separate clocks. A discrepancy between the separate clocks is determined, as is a correction factor between the separate clocks. The phase is determined using a measured time of arrival of the signal, the determined discrepancy, and the determined correction factor. A drift factor and an expected start time of a pulse sequence may be used to determine the discrepancy. A start time of a pulse within the pulse sequence is determined and used to determine the correction factor. The method works by either absolute synchronization of the separate clocks, or by making the measurements independent of clock synchronization.
公开/授权文献
- US20130080102A1 Measuring The Phase Of Received Signals 公开/授权日:2013-03-28