Device and method for location of an RFID transmitter

A receiver comprising:

• a first estimation module;
• a second estimation module;
• a third extraction module;
• a fourth module;
• and
• at least one conversion module;
• wherein the receiver is connected to at least one first antenna configured to receive an emitted signal, the emitted signal emitted wirelessly by an RFID transmitter in an environment involving one or more signal propagation path relative to the receiver and connected to at least one second antenna configured to receive the emitted signal,
• the at least one first antenna and the at least one second antenna being connected in the receiver to respectively a first receiving part supplying a first channel signal as a function of the emitted signal and connected to a second receiving part supplying a second channel signal as a function of the emitted signal,
• the at least one first antenna defining a first receiving channel for receiving of the emitted signal,
• the at least one second antenna defining a second receiving channel for receiving of the emitted signal,
• the at least one first antenna- and the at least one second antenna being at a distance from each other and respectively having first and second predetermined positions relative to each other such that the first receiving channel is substantially identical to the second receiving channel,
• wherein the emitted signal is of the ultra-wide band type, and
• the first estimation module is configured to estimate a first complex impulse response of the first receiving channel to the emitted signal as a function of the emitted signal and of the first channel signal,
• the second estimation module is configured to estimate a second complex impulse response of the second receiving channel to the emitted signal as a function of the emitted signal and of the second channel signal,
• the third extraction module is configured to extract from the first complex impulse response one or more first time component associated respectively with the one or more signal propagation path arriving at the at least one first antenna and to extract from the second complex impulse response one or more second time component associated respectively with the one or more of signal propagation path arriving at the at least one second antenna,
• the fourth module is configured to calculate one or more argument difference between an argument of the one or more first time component of the first complex impulse response and an argument of the one or more second time component of the second complex impulse response respectively for the one or more signal propagation path, and
• the at least one conversion module is configured to convert each argument difference into an angle of arrival of each signal propagation path relative to the receiver.