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Multiple Target Measurements: Bayesian Framework for Moving Object Detection in MIMO Radar

Bastian Eisele (Friedrich-Alexander-Universität Erlangen-Nürnberg); Ali Bereyhi (Friedrich-Alexander-Universität Erlangen-Nürnberg); Ralf Müller (Friedrich-Alexander-Universität Erlangen-Nürnberg)

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08 Jun 2023

Utilizing compressive sensing (CS), one can significantly reduce the number of required antenna elements in MIMO radar systems, while preserving a high spatial resolution. Most CS-based studies focus on individual processing of a single set of measurements collected from an stationary scene. In this paper, we propose a new scheme called multiple target measurements (MTM). This scheme uses the target movement to collect multiple sets of measurements from jointly sparse stationary scenes. Invoking approximate message passing, we develop a Bayesian-like iterative algorithm to recover the sparse scenes jointly. Our analytical and numerical investigations demonstrate that MTM can further reduce the array size required to achieve a desired spatial resolution.

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