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Proceedings Paper

Modern frequency estimation algorithms for FMCW radar systems
Author(s): Markus Pichler; Andreas Stelzer; Alexander Fischer; Peter Gulden; Robert Weigel
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Paper Abstract

In frequency modulated continuous wave sensor systems for object distance measurement, use of the fast Fourier transformation for frequency estimation is widely adopted because of its comparably low execution time and available implementations. Inherent resolution restrictions make modern state-space based frequency estimators a viable alternative to this approach. Estimation of the correct model order, crucial to accurate distance measurement when used in a setup with an unknown number of targets, may be avoided by using active transponders. In this paper, application of a state-space frequency estimator is investigated with the use of measurement data in a system with an a priori known number of active targets. Evaluation results are analyzed and compared to performance of the Fourier transformation.

Paper Details

Date Published: 22 July 2003
PDF: 7 pages
Proc. SPIE 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems, (22 July 2003); doi: 10.1117/12.484130
Show Author Affiliations
Markus Pichler, Linz Ctr. of Mechatronics GmbH (Austria)
Andreas Stelzer, Johannes Kepler Univ. (Austria)
Alexander Fischer, Abatec Electronic AG (Austria)
Peter Gulden, Siemens Corporate Technology (Germany)
Robert Weigel, Friedich-Alexander Univ. Erlangen-Nuernberg (Germany)

Published in SPIE Proceedings Vol. 5045:
Testing, Reliability, and Application of Micro- and Nano-Material Systems
Norbert Meyendorf; George Y. Baaklini; Bernd Michel, Editor(s)

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