Unlimited Sensing: When Noise Becomes the Signal
Source: SIAM News — Ayush Bhandari, Imperial College London
TL;DR
Unlimited sensing is a novel approach that harnesses quantization noise from traditional digitization methods to achieve clearer sensing. Instead of clipping signals that exceed conventional sensor range, the method uses "folding" — when the signal exceeds the sensor's range, it folds back rather than being clipped, preserving information that would otherwise be lost. This allows sensors to capture signals far beyond their nominal range without hardware modifications. The technique has evolved from theoretical concept to practical applications with implications for various sensing modalities.