Antenna Array Calibration for Living-Body Radar

This letter introduces an antenna array calibration method that uses the channel response with known subject direction so as to accurately estimate living-body directions in multipath environments for elderly monitoring. Said calibration is extracted from the known living-body direction information...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016, Vol.15, p.246-249
Main Authors: Sasakawa, Dai, Konno, Keita, Honma, Naoki, Nishimori, Kentaro, Takemura, Nobuyasu, Mitsui, Tsutomu
Format: Article
Language:English
Subjects:
Antenna array
Antenna arrays
Antenna measurements
Arrays
Calibration
direction-of-arrival (DOA) estimation
Directive antennas
living-body direction
microwave sensors
Multiple signal classification
Radar antennas
single-input-multiple-output (SIMO)
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Summary:This letter introduces an antenna array calibration method that uses the channel response with known subject direction so as to accurately estimate living-body directions in multipath environments for elderly monitoring. Said calibration is extracted from the known living-body direction information using the Fourier transformed channel matrix. An experiment shows that the proposed method offers successful antenna array calibration even in indoor environments. Living-body directions are successfully estimated within acceptable error proving that the proposed method is effective in calibrating living-body radars.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2015.2439735