Wireless signals and techniques for determining locations of objects in multi-path environments
US10168414B2 · kind B2 · utility
6Cited by
25References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jan 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/02521
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A time-reversal positioning system includes a storage storing first data representing channel impulse responses derived from probe signals sent from a plurality of positions and second data representing coordinates of the positions. A data processor determines a position of a terminal device based on the stored channel impulse responses and a time-reversed signal determined based on a time-reversed version of a channel impulse response that is estimated based on a channel probing signal sent from the terminal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.