Dynamic Delay-Dispersive UWB-Radar Targets: Modeling and Estimation

Gedschold J, Semper S, Thoma RS, Dobereiner M, Galdo GD (2023)

Publication Type: Journal article

Publication year: 2023

Journal

IEEE Transactions on Antennas and Propagation Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 71

Pages Range: 6814-6829

Journal Issue: 8

DOI: 10.1109/TAP.2023.3287672

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 ultrawideband (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 that 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 a finite impulse response (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 of the FIR model on measurements of a static scenario.

Involved external institutions

Technische Universität Ilmenau DE Germany (DE) Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE)

How to cite

APA:

Gedschold, J., Semper, S., Thoma, R.S., Dobereiner, M., & Galdo, G.D. (2023). Dynamic Delay-Dispersive UWB-Radar Targets: Modeling and Estimation. IEEE Transactions on Antennas and Propagation, 71(8), 6814-6829. https://doi.org/10.1109/TAP.2023.3287672

MLA:

Gedschold, Jonas, et al. "Dynamic Delay-Dispersive UWB-Radar Targets: Modeling and Estimation." IEEE Transactions on Antennas and Propagation 71.8 (2023): 6814-6829.

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