Reconstructing sparse signals from their zero crossings

  title={Reconstructing sparse signals from their zero crossings},
  author={Petros Boufounos and Richard G. Baraniuk},
  journal={2008 IEEE International Conference on Acoustics, Speech and Signal Processing},
Classical sampling records the signal level at pre-determined time instances, usually uniformly spaced. An alternative implicit sampling model is to record the timing of pre-determined level crossings. Thus the signal dictates the sampling times but not the sampling levels. Logan's theorem provides sufficient conditions for a signal to be recoverable, within a scaling factor, from only the timing of its zero crossings. Unfortunately, recovery from noisy observations of the timings is not robust… CONTINUE READING
Highly Cited
This paper has 17 citations. REVIEW CITATIONS