Access Restriction

Author Chenming Zhou ♦ Downey, J. ♦ Stancil, D. ♦ Mukherjee, T.
Sponsorship IEEE Microwave Theory and Techniques Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1963
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
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
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.
Description Author affiliation :: Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
ISSN 00189480
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-10-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 58
Issue Number 10
Size (in Bytes) 735.69 kB
Page Count 8
Starting Page 2521
Ending Page 2528

Source: IEEE Xplore Digital Library