Computational time-reversal imaging with a small number of random and noisy measurements

Details Computational time-reversal imaging with a small number of random and noisy measurements Computational time-reversal imaging with a small number of random and noisy measurements

2009-06-15

arxiv.org/abs/0906.2600v1

Physics

Data Analysis, Statistics and Probability

13 pages, 4 figures

Scientific paper

Computational time reversal imaging can be used to locate the position of multiple scatterers in a known background medium. The current methods for computational time reversal imaging are based on the null subspace projection operator, obtained through the singular value decomposition of the frequency response matrix. Here, we discuss the image recovery problem from a small number of random and noisy measurements, and we show that this problem is equivalent to a randomized approximation of the null subspace of the frequency response matrix.

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