Patent · US Active

Method of multi-transmitter and multi-path AOA-TDOA location comprising a sub-method for synchronizing and equalizing the receiving stations

US8188923B2 · kind B2 · utility

5Cited by
0References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 2008
Grant dateMay 29, 2012
Priority date—
Expiry dateNov 21, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S5/12
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Method and system for locating one or more transmitters in the potential presence of obstacles in a network comprising a first receiving station A and a second receiving station B that is asynchronous with A. The method includes the identification of a reference transmitter through an estimation of its direction of arrival AOA-TDOA pair (θref, Δτref) on the basis of the knowledge of the positions of the reference transmitter and of stations A and B, an estimation of the direction of arrival of the transmitter or transmitters and of the reflectors (or estimation of the AOA) on station A, and the correction of the errors of asynchronism between station A and station B by using the reference transmitter and the location of the various transmitters on the basis of each pair (AOAi, TDOAi).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.