New blind mobility aid devices based on the ultrasonic Doppler effect.

Abstract

An original approach to electronic blind mobility aid combined with ultrasonic wave processing and spatial hearing has allowed the design of new blind mobility aid devices. These devices convert inaudible ultrasound echoes into audible sound via the Doppler effect, preserving even slight modification of the high frequency wave, so as to provide the user… (More)

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Cite this paper

@article{Bitjoka1999NewBM, title={New blind mobility aid devices based on the ultrasonic Doppler effect.}, author={Laurent Bitjoka and Leandre Pourcelot}, journal={International journal of rehabilitation research. Internationale Zeitschrift fur Rehabilitationsforschung. Revue internationale de recherches de readaptation}, year={1999}, volume={22 3}, pages={227-31} }