Active elimination of radio frequency interference for improved signal-to-noise ratio for in-situ NMR experiments in strong magnetic field gradients

摘要

Graphical abstractDisplay OmittedHighlights?Improving signal-to-radio frequency interference (RFI) ratio for open access NMR.?Signal processing used to reduce the impact of RFI level.?Two methods explored: Linear Predictive Coding and Discrete Wavelet Transform.?Numerical simulations and experimental results shown.AbstractImprovement in the signal-to-noise ratio of Nuclear Magnetic Resonance (NMR) systems may be achieved either by increasing the signal amplitude or by decreasing the noise. The noise has multiple origins – not all of which are strictly “noise”: incoherent thermal noise originating in the p