TY - GEN
T1 - A study of the ambiguity problem in footstep bearing estimation using tri-axial geophone
AU - Venkatraman, Divya
AU - Reddy, Vinod
AU - Khong, Andy W.H.
PY - 2011
Y1 - 2011
N2 - This paper investigates the ambiguities that exist in the bearing estimate of human footstep signals acquired using a single tri-axial geophone. Estimated angles for a series of footsteps from three different walking patterns are evaluated. It is observed that there are two kinds of ambiguities, viz., energy and wave polarization. A systematic study of these ambiguities are presented using covariance matrix analysis (CMA) as the base algorithm. Existing techniques to resolve these ambiguities are analysed with their limitations.
AB - This paper investigates the ambiguities that exist in the bearing estimate of human footstep signals acquired using a single tri-axial geophone. Estimated angles for a series of footsteps from three different walking patterns are evaluated. It is observed that there are two kinds of ambiguities, viz., energy and wave polarization. A systematic study of these ambiguities are presented using covariance matrix analysis (CMA) as the base algorithm. Existing techniques to resolve these ambiguities are analysed with their limitations.
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U2 - 10.1109/ICICS.2011.6173512
DO - 10.1109/ICICS.2011.6173512
M3 - Conference contribution
AN - SCOPUS:84860630686
SN - 9781457700309
T3 - ICICS 2011 - 8th International Conference on Information, Communications and Signal Processing
BT - ICICS 2011 - 8th International Conference on Information, Communications and Signal Processing
T2 - 8th International Conference on Information, Communications and Signal Processing, ICICS 2011
Y2 - 13 December 2011 through 16 December 2011
ER -