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A novel delta-sigma (Δ — Σ) modulation method is proposed for extending noise-shaping to two dimensions: space and time. The goal is to improve the noise figure (NF) and linearity of low noise amplifiers (LNAs) for use in microwave and mm-wave antenna arrays. We show that a spatially-oversampled antenna array coupled to an N-port noise-shaped LNA can diminish in-band additive noise and distortion...
This paper introduces a source localization technique that exploits the high temporal resolution of neuronal magnetoencephalography (MEG) data to locate the originating sources within the head. A traditional frequency beamforming algorithm was adapted from its conventional application of providing frequency information to yield information on the spatial location of simulated neuronal signals. This...
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