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Dynamic delay-dispersive UWB-Radar Targets: Modeling and Estimation

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posted on 2023-02-21, 19:19 authored by Jonas GedscholdJonas Gedschold, Sebastian SemperSebastian Semper, Reiner Thomä, Michael Döbereiner, Giovanni Del Galdo

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. 


DFG projects SeMoCa with project number 420546347 and HoPaDyn with Grant-No. TH 494/30-1


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Submitting Author's Institution

Technische Universtität Ilmenau

Submitting Author's Country

  • Germany