Source separation based processing for integrated Hall sensor arrays

Integrated arrays of Hall-type magnetic sensors are generally subject to significant crosstalk due to poor spatial selectivity of very closely spaced sensors. In this paper, we explore blind source separation as a signal processing technique to unmix a number of magnetic sources that impinge on the...

Full description

Saved in:
Bibliographic Details
Published inIEEE sensors journal Vol. 2; no. 6; pp. 663 - 673
Main Authors Paraschiv-Ionescu, A., Jutten, C., Bouvier, G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Array signal processing
Arrays
Blind source separation
Blinds
Crosstalk
Halls
Magnetic sensors
Magnetic separation
Sensor arrays
Sensors
Separation
Signal processing
Signal processing algorithms
Silicon
Source separation
Online AccessGet full text

Cover

More Information
Summary:Integrated arrays of Hall-type magnetic sensors are generally subject to significant crosstalk due to poor spatial selectivity of very closely spaced sensors. In this paper, we explore blind source separation as a signal processing technique to unmix a number of magnetic sources that impinge on the array. The processing consists of two stages: the first one estimates the source number and projects the observations on the signal subspace; the second stage is a source separation algorithm. Experimental results from a silicon array of Hall sensors, interfaced with a DSP, demonstrate real-time separation of two magnetic sources even under ill-conditioning of the mixing matrix.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2002.807302