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—The idea that compressed sensing may be used to encrypt information from unauthorized receivers has already been envisioned, but never explored in depth since its security may seem compromised by the linearity of its encoding process. In this paper we use the simplicity of this encoding to define a general, lightweight encryption scheme in which a(More)
—Design of Random Modulation Pre-Integration systems based on the restricted-isometry property may be subopti-mal when the energy of the signals to be acquired is not evenly distributed, i.e. when they are both sparse and localized. To counter this, we introduce an additional design criterion, that we call rakeness, accounting for the amount of energy that(More)