Multi-view indoor scene reconstruction from compressed through-wall radar measurements using a joint Bayesian sparse representation

VH Tang, A Bouzerdoum, SL Phung… - … on Acoustics, Speech …, 2015 - ieeexplore.ieee.org
2015 IEEE International Conference on Acoustics, Speech and Signal …, 2015ieeexplore.ieee.org
This paper addresses the problem of scene reconstruction, incorporating wall-clutter
mitigation, for compressed multi-view through-the-wall radar imaging. We consider the
problem where the scene is sensed using different reduced sets of frequencies at different
antennas. A joint Bayesian sparse recovery framework is first employed to estimate the
antenna signal coefficients simultaneously, by exploiting the sparsity and correlations
between antenna signals. Following joint signal coefficient estimation, a subspace …
This paper addresses the problem of scene reconstruction, incorporating wall-clutter mitigation, for compressed multi-view through-the-wall radar imaging. We consider the problem where the scene is sensed using different reduced sets of frequencies at different antennas. A joint Bayesian sparse recovery framework is first employed to estimate the antenna signal coefficients simultaneously, by exploiting the sparsity and correlations between antenna signals. Following joint signal coefficient estimation, a subspace projection technique is applied to segregate the target coefficients from the wall contributions. Furthermore, a multitask linear model is developed to relate the target coefficients to the scene, and a composite scene image is reconstructed by a joint Bayesian sparse framework, taking into account the inter-view dependencies. Experimental results show that the proposed approach improves reconstruction accuracy and produces a composite scene image in which the targets are enhanced and the background clutter is attenuated.
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