21 May 2015 Micro-Doppler characteristics of elderly gait patterns with walking aids
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Abstract
In this paper, we analyze the micro-Doppler signatures of elderly gait patterns in the presence of walking aids using radars. The signatures are based on real data experiments conducted in a laboratory environment using human subjects walking with a walking cane and a walker. Short-time Fourier transform is used to provide the local signal behavior over frequency and to detail the changes in the micro-Doppler signatures over time. Intrinsic differences in the Doppler and micro-Doppler signatures of the elderly gait observed with and without the use of a walking aid are highlighted. Features that capture these differences can be effective in discriminating gait with walking aids from normal human gait.
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Moeness G. Amin, Fauzia Ahmad, Yimin D. Zhang, Boualem Boashash, "Micro-Doppler characteristics of elderly gait patterns with walking aids", Proc. SPIE 9461, Radar Sensor Technology XIX; and Active and Passive Signatures VI, 94611A (21 May 2015); doi: 10.1117/12.2178398; https://doi.org/10.1117/12.2178398
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