User-executable antenna array calibration

US8264408B2 · kind B2 · utility

Assignee

• Nokia · FI

Inventors

• Antti Paavo Tapani Kainulainen · Nummela, FI
• Andreas Richter · Gaimersheim, DE
• Fabio Belloni · Espoo, FI

Key dates

• Filing date: Nov 20, 2007
• Grant date: Sep 11, 2012
• Expiry date: Jul 9, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S3/023
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system used for calibrating a direction-finding system. A device may include a signal receiver array. The signal receiver array may be utilized to determine the direction of arrival for signals emitted by other devices, and therefore, may be used to resolve the direction towards another device using the received signal. For example, an external tag may be utilized to emit a wireless signal usable inducing a response in each signal receiver of the signal receiver array. The device may also include one or more sensors usable in determining device orientation and/or a change in device orientation. The combined signal receiver response information and orientation information may be recorded at various instants as the device is moved for use in calibrating the antenna array.