"Real-Time Step Length Estimation in Indoor and Outdoor Scenarios" by Zanru Yang, Le Chung Tran et al.
In this paper, human step length is estimated based on the wireless channel properties and the received signal strength indicator (RSSI) method. The path loss between two ankles, called the on-ankle path loss, is converted from the RSSI, which is measured by our developed wearable hardware in indoor and outdoor ambulation scenarios. The human walking step length is estimated by a reliable range of RSSI values. The upper threshold and the lower threshold of this range are determined experimentall...
Source: uow.edu.au