DEVICE AND METHOD FOR LOCATING AN RFID TRANSMITTER

摘要

The invention concerns a device for locating a remote RFID transmitter in an environment providing separate paths of propagation of a wirelessly transmitted ultra-wide band signal. The receiver (100) of the device has a module (14A) for estimating the impulse response (HA) of the plurality of paths of the first channel (A) defined by a first antenna (10A) and a module (14B) for estimating the impulse response (HB) of the plurality of paths of the second channel (B) defined by the second antenna (10B), a module (162) for calculating a plurality of argument differences between each component of the impulse response (HA) and each component of the impulse response (HB) for the plurality of paths respectively. The device further comprises a module (17) for converting the plurality of argument differences into a plurality of arrival angles (thetai) of the plurality of paths, a module (18) for determining a location of the transmitter from the plurality of arrival angles (thetai).