NDLI: A Low-Power Shoe-Embedded Radar for Aiding Pedestrian Inertial Navigation

Content Provider	IEEE Xplore Digital Library
Author	Chenming Zhou Downey, J. Stancil, D. Mukherjee, T.
Copyright Year	1963
Abstract	Navigation in global positioning system (GPS)-denied or GPS-inhibited environments such as urban canyons, mountain areas, and indoors is often accomplished with an inertial measurement unit (IMU). For portable navigation, miniaturized IMUs suffer from poor accuracy due to bias, bias drift, and noise. We propose to use a low-power shoe-embedded radar as an aiding sensor to identify zero velocity periods during which the individual IMU sensor biases can be observed. The proposed radar sensor can also be used to detect the vertical position and velocity of the IMU relative to the ground in real time, which provides additional independent information for sensor fusion. The impacts of the noise and interference on the system performance have been analyzed analytically. A prototype sensor has been constructed to demonstrate the concept, and experimental results show that the proposed sensor is promising for position and velocity sensing.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2521
Ending Page	2528
Page Count	8
File Size	753347
File Format	PDF
ISSN	00189480
Volume Number	58
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Antennas Radio frequency Radar Signal to noise ratio Antenna measurements zero velocity update (ZUPT) Direct conversion inertial navigation position and velocity sensor
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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