▣ Title : Pedestrian

Navigation Techniques for Smartphone Users

▣ Speaker

: Prof. ChangookPark

▣ Date

& Time : Friday, April  26 (2:00

~ 3:30pm)

▣ Place

: LG Research Building, Room #101

▣ Host

: Prof. Sangchul  Won  (Tel. 2221)

▣ Abstract :

The

demand for navigating a user with a hand-held device, especially in GPS

degraded and denied environments such as indoors and in urban canyons, has

tremendously increased over the last few years. Smartphones are attractive platforms for navigation

systems due to their small size, low cost and diversity of sensors feasible for

positioning. Most of such smartphones are equipped with GPS chip, MEMS sensors (including accelerometers,

gyroscopes, magneto-meters and barometers) along with other gadgets such as

camera and Wi-Fi. In the current state of the art in MEMS technology, the

accuracy of the inertial sensors is not good enough for getting position

information by integration of the sensor outputs over longer durations of time.

Thus MEMS based pedestrian navigation exploits the kinematics of human walk

using the inertial sensor data in a different way than the classical double

integration of acceleration in traditional Inertial Navigation Systems (INS).

The observation from all of these navigation sources should be also fused

together using Kalman filters. In this talk, various emerging

navigation technologies for pedestrian will be introduced.