2 papers
cs.IT2025
Unlocking Off-the-Grid Sparse Recovery with Unlimited Sensing: Simultaneous Super-Resolution in Time and Amplitude
Ruiming Guo, Ayush Bhandari
The recovery of Dirac impulses, or spikes, from filtered measurements is a classical problem in signal processing. As the spikes lie in the continuous domain while measurements are…
cs.IT2024
Sub-Nyquist USF Spectral Estimation: Frequencies with Modulo Samples
Ruiming Guo, Yuliang Zhu, Ayush Bhandari
Digital acquisition of high bandwidth signals is particularly challenging when Nyquist rate sampling is impractical. This has led to extensive research in sub-Nyquist sampling meth…