A stepped-frequency continuous wave ranger for aiding pedestrian navigation

Author

Downey, J. ; Paramesh, Jeyanandh ; Stancil, D. ; Mukherjee, Tridib

Author_Institution

Carnegie Mellon Univ., Pittsburgh, PA, USA

fYear

2013

Firstpage

28

Lastpage

30

Abstract

Pedestrian navigation is readily enabled by GPS in outdoor environments. However, there are many locations - indoors, urban canyons and underground - where the GPS signal is unreliable or unavailable. Compact, MEMS inertial navigation, augmented by a Shoe Ranging Sensor (SRS) that measures scalar range between shoes, greatly reduces navigational error over large distances in simulations. Existing sensors have insufficient measurement dynamic range or environmental resiliency. Here, the authors report on an SRS based on stepped-frequency continuous wave radar with RMS ranging accuracy of 0.59 mm and 1 m range. This is an order-of-magnitude more accuracy over recent ultra-wideband rangers.

Keywords

distance measurement; footwear; inertial navigation; microsensors; pedestrians; radionavigation; aiding pedestrian navigation; shoe ranging sensor; stepped frequency continuous wave ranger; Accuracy; Bandwidth; Distance measurement; Footwear; Global Positioning System; Radar; Voltage-controlled oscillators; Inertial navigation; Radar; SFCW; ranging;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Sensors and Sensor Networks (WiSNet), 2013 IEEE Topical Conference on

Conference_Location

Austin, TX

Print_ISBN

978-1-4673-3104-3

Electronic_ISBN

978-1-4673-2931-6

Type

conf

DOI

10.1109/WiSNet.2013.6488623

Filename

6488623