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Dynamic delay-dispersive UWB-Radar Targets -- Modeling and Estimation --
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  • Jonas Gedschold ,
  • Sebastian Semper ,
  • Reiner Thomä ,
  • Michael Döbereiner ,
  • Giovanni Del Galdo
Jonas Gedschold
Technische Universtität Ilmenau, Technische Universtität Ilmenau

Corresponding Author:[email protected]

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Sebastian Semper
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Reiner Thomä
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Michael Döbereiner
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Giovanni Del Galdo
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Abstract

This publication proposes a parametric data model and a gradient-based maximum likelihood estimator suitable for the description of delay-dispersive responses of multiple dynamic UWB-radar targets. The target responses are estimated jointly with the global target parameters range and velocity.
The large relative bandwidth of UWB has consequences for model-based parameter estimation. On the one hand, the Doppler effect leads to a dispersive response in the Doppler spectrum and to a coupling of the target parameters which both need to be considered during modeling and estimation. On the other hand, the shape of an extended target results in a dispersive response in range which can be resolved by the radar resolution. We consider this extended response as a parameter of interest, e.g., for the purpose of target recognition. Hence, we propose an efficient description and estimation of it by an FIR structure only imposing a restriction on the target’s dispersiveness in range.
We evaluate the approach on simulations, compare it to state of the art solutions and provide a validation on measurement data.
Aug 2023Published in IEEE Transactions on Antennas and Propagation volume 71 issue 8 on pages 6814-6829. 10.1109/TAP.2023.3287672