In this work, we introduce a novel approach for determining joint sparse spectrum from several non-uniformly sampled data sets, where each set is assumed to have its own, possibly disjoint, and only partially known, sampling times. The potential of the proposed illustrated using spectral estimation problem in paleoclimatology. problem, point derives separate ice core measurement, resulting that...

Electro-optic sampling has emerged as a new quantum technique enabling measurements of electric field fluctuations on subcycle time scales. In second-order nonlinear material, the terahertz are imprinted onto polarization properties an ultrashort probe pulse in near infrared. The statistics this time-domain signal calculated, incorporating nature involved fields right from beginning. A microsco...