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This paper investigates a new pedestrian speed estimation method for OFDM systems. Correlation coefficients are calculated from the wideband channel frequency response and the instantaneous coherence time is estimated for a certain envelope correlation coefficient. The performance of the proposed method is verified by means of an experimental system in order to predict the reliability of the estimator...
This paper analyzes a new dead-reckoning method for pedestrian navigation. In traditional approaches, accelerometers are used to detect steps and to estimate the step length. However, these algorithms must be calibrated for each user and fail in practice when the user moves with an irregular posture like crawling or carrying a victim. In the proposed method the speed is determined from coherence time...
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