Target parameter estimation using the Capon method in a MIMO OFDM DFRC system

BHOGAVALLI, Satwika; GRIVEL, Eric; CORRETJA, Vincent

doi:10.1109/ICASSP49660.2025.10888347

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BHOGAVALLI, Satwika
Indian Institute of Science [Bangalore] [IISc Bangalore]
Indian Institute of Science [IISc]

GRIVEL, Eric

Laboratoire de l'intégration, du matériau au système [IMS]
Institut Polytechnique de Bordeaux [Bordeaux INP]

CORRETJA, Vincent
Laboratoire de l'intégration, du matériau au système [IMS]
Thales Airborne Systems
THALES [France]
Thales DMS France, SAS

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Communication dans un congrès

Ce document a été publié dans

ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing, International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2025-04-06, Hyderabad.

Résumé en anglais

Dual-function radar communication (DFRC) systems have gained popularity because they integrate radar and communication functionalities into a single piece of hardware, enabling both functions to be performed simultaneously. Estimating the target parameters, specifically the direction of arrival, the range, and the velocity, is one of the main goals when dealing with DFRC systems. In this work, the target parameters are estimated independently using the popular Capon method with a multiple-input multiple-output DFRC system based on orthogonal frequency division multiplexing as the transmitted waveform. To this end, we show that a suitable waveform has to be designed to carry out the independent estimation of the range and the velocity and explain how to proceed for the a posteriori pairing of the estimations. The performance of the approach is compared with the modified Cramer-Rao bound. In addition, this method is compared with the existing subspace method and the variant of the Capon method proposed by Borgiotti-Lagunas.< Réduire

Mots clés en anglais

MIMO

DFRC

Capon

Subspace methods

Waveform design

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