Cross-correlation of time domain signals due to motion proximity

A method for Wi-Fi sensing carried out by a networked device implementing a sensing algorithm, the networked device including at least one processor configured to execute instructions, the method comprising:

• obtaining, by the at least one processor, a first set of time domain pulses from first channel representation information determined from a first sensing measurement based on a first sensing transmission transmitted by a sensing transmitter and received by a sensing receiver and representative of a first frame;
• detecting a first amplitude attenuation between a first selected time domain pulse of the first set of time domain pulses and a first corresponding time domain pulse;
• obtaining, by the at least one processor, a second set of time domain pulses from second channel representation information determined from a second sensing measurement based on a second sensing transmission transmitted by the sensing transmitter and received by the sensing receiver and representative of a second frame;
• detecting a second amplitude attenuation between a second selected time domain pulse of the second set of time domain pulses and a second corresponding time domain pulse;
• determining a time lag between the first amplitude attenuation and the second amplitude attenuation;
• and
• determining a near-far indicator based on the time lag.