In an indoor environment, there commonly exist a large number of multipaths due to rich scatterers. These multipaths make the indoor positioning problem very challenging. The …
By leveraging the natural multipath propagation of electromagnetic waves, waveforming is proposed as a promising paradigm that treats each multipath component in a wireless …
(57) ABSTRACT A time-reversal positioning system includes a storage stor ing first data representing channel impulse responses derived from probe signals sent from a plurality of …
An apparatus for detecting events includes a processor and a storage device storing instructions that when executed by the processor cause the processor to train a classifier for …
F Han, KJR Liu - US Patent 9,559,874, 2017 - Google Patents
In a time-reversal wireless system, a transceiver receives a combined signal that includes signals from a plurality of devices, each device sending a signal to the transceiver through …
(65) Prior Publication Data(57) ABSTRACT US 2015/0257167 A1 Sep. 10, 2015 A method of connecting devices to a network is provided. The method includes providing base stations …
F Han, KJR Liu - US Patent 9,882,675, 2018 - Google Patents
In an asymmetric time-reversal wireless system, a base station includes an input circuit configured to, during a hand-shake period, receive a channel response signal derived from …
A Dezfooliyan, AM Weiner - IEEE Transactions on Antennas …, 2012 - ieeexplore.ieee.org
Spread spectrum sounding experiments for indoor wireless channel over a frequency band spanning 2-12 GHz, which exceeds the full FCC UWB band, are reported. Experiments were …
H Ma, Y Han, Y Chen, Z Safar, F Han… - US Patent 9,313,020, 2016 - Google Patents
A handshaking process for time-reversal wireless communication is provided. A first device receives a handshake signal transmitted from a second device through multiple propagation …