Abstract
Time-reversal processing (TRP) can be implemented spatially and temporally to refocus incident field back to its origin. The main limitation to TRP is that it requires a probe source. This limitation was partially relaxed by the concept of a virtual source array (VSA) [S. C. Walker et al., J. Acoust. Soc. Am. 125, 3828–3834 (2009)] proposed for focusing time-reversed field back to the selected location without a probe source. In the case of spatial resolution of TRP, it is mathematically well documented [S. Kim et al., J. Acoust. Soc. Am. 110, 820–829 (2001)]. In this study, we investigate variable factors affecting spatial resolution of TRP based on a VSA. Numerical simulation results are presented and discussed.
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