12 lines
491 B
TeX
12 lines
491 B
TeX
\subsection{Step- and Turn-Detection}
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The smartphone's IMU is used to track the number of steps the pedestrian has made
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(accelerometer) as well as the relative heading change (gyroscope) since the last transition
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\cite{ebner-15}.%
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%
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To avoid potential sample impoverishment, which is induced when using the state transition as proposal distribution,
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we use both values directly within the transition step to constrain the to-be-walked distance and direction for the
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random walk.
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