Modern frequency estimation algorithms for FMCW radar systems

Markus Pichler; Andreas Stelzer; Alexander Fischer; Peter Gulden; Robert Weigel

doi:10.1117/12.484130

22 July 2003 Modern frequency estimation algorithms for FMCW radar systems

Markus Pichler, Andreas Stelzer, Alexander Fischer, Peter Gulden, Robert Weigel

Author Affiliations +

Proceedings Volume 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems; (2003) https://doi.org/10.1117/12.484130
Event: NDE for Health Monitoring and Diagnostics, 2003, San Diego, California, United States

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.

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Markus Pichler, Andreas Stelzer, Alexander Fischer, Peter Gulden, and Robert Weigel "Modern frequency estimation algorithms for FMCW radar systems", Proc. SPIE 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems, (22 July 2003); https://doi.org/10.1117/12.484130

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