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Experimental Results on Multiple-Input Single-Output (MISO) Time Reversal for UWB Systems in an Office Environment

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3 Author(s)
Chenming Zhou ; Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN ; Nan Guo ; Qiu, R.C.

This paper experimentally investigates the scheme of time reversal (TR) combined with multiple-input single-output (MISO) antennas over ultra-wideband (UWB) channels. In particular, temporal and spatial focusing as well as array gain are studied based on a (4times1) MISO scheme in an office environment. The results confirm that the energy of UWB signals in an MISO scheme is more spatial-temporally focused than in a single-input single-output (SISO) scheme. As a result, a strong peak is observed in the equivalent channel impulse response. The magnitude of this peak grows linearly with the square root of the number of antenna elements at the transmitter. All the measurements and data processing are completed in the time domain

Published in:

Military Communications Conference, 2006. MILCOM 2006. IEEE

Date of Conference:

23-25 Oct. 2006