I have over 20 years of experience in the fields of inertial sensing, sensor data fusion, Kalman filtering, localization, tracking, biomechanics, and human gait analysis. My early work in the field of foot tracking has been the basis of current unrestricted gait analysis research conducted in collaboration with several departments at the University of Michigan as well as other research centers across the world. I use inertial sensors to solve diverse problems such as robot localization, marine mammals tracking, gait-analysis, personal localization, and attitude determination for micro-satellites.