Patent ID: 11876553
Assignee: nan
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 11:
12. The method according to claim 7, wherein
the first UWB transceiver and the second UWB transceiver are not synchronized with each other;
the first UWB transceiver incorporates an energy detector circuit;
the estimate of the elapsed time is established in dependence upon an energy distribution determined by the DSP for two consecutive first integration windows during which the echo signal is received; and
the UWB impulse comprises a plurality N pulses; wherein each pulse of the N pulses is at a predetermined frequency of a plurality M frequencies, has a predetermined amplitude, and has a predetermined pulse length; and
the echo signal comprises a plurality R pulses; wherein each pulse of the R pulses is at a predetermined frequency of a plurality S frequencies, has a predetermined amplitude, and has a predetermined pulse length.