Measuring the phase of received signals
US9182747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Mar 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16Z99/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.