Method for locating a source by multi-channel estimation of the TDOA and FDOA of its multipath components with or without AOA
US8718674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jan 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0218
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for locating an emitter E transmitting a signal toward a receiver A comprising N radio frequency channels (N≧1), the characteristics of said signal being unknown to the receiver and said signal being reflected off P reflectors Bi (P≧1) of known positions, includes a step of multi-channel joint estimation/detection of the time differences of arrival or TDOA τi and of the frequency differences of arrival or FDOA fi for each reflected path, a step of angular estimation of the direction θ1 of the direct path of the signal emitted by a goniometry procedure, and a step of location in the plane of the position (x,y) of the emitter E on the basis, at least, of the pairs (τi, fi).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.