Device and method for position measurement by means of linear doppler shifts generated
US7719469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position determination method including a step of transmitting a periodic signal having a carrier frequency, a step of sequentially receiving the periodic signal having the carrier frequency at various locations using at least one antenna, and a step of determining a first coordinate of the object location on the basis of a zero crossing of a Doppler frequency response which may be associated with the first coordinate of the object location, the first coordinate of the object location corresponding to a coordinate of that location of the at least one antenna which it has when receiving the periodic signal at the zero crossing in relation to the object location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.