Apparatus, system and method of synchronization between Global Navigation Satellite System (GNSS) measurements and inertial measurements
US11099277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2018 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Some demonstrative embodiments include apparatuses, devices, systems and methods of synchronizing time. For example, an apparatus may include a GNSS receiver to output GNSS measurements, and an output-timing signal including a plurality of pulses based on a clock of the GNSS receiver; an IMU to output inertial measurements, the IMU including a magnetometer to output magnetometer measurements; an antenna to emit an electromagnetic signal based on the output-timing signal, the electromagnetic signal to be measured by the magnetometer; and a processor to process the GNSS measurements and the inertial measurements, to detect in the magnetometer measurements one or more detected pulses of the output-timing signal, to determine a time delay between a clock of the IMU and the clock of the GNSS receiver based the detected pulses, and to adjust a time-base of the inertial measurements to a time-base of the GNSS measurements based on the time delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.