Nyquist frequency signal, whereas "Nyquist frequency" is a property of a discrete-time system. When the function domain is time, sample rates are usually expressed in samples per second, and the unit of Nyquist frequency is cycles per second (hertz). When the function domain is distance, as in an image sampling system, the sample rate might be dots per inch and the corresponding Nyquist frequency would be in cycles/inch. Referring again to Figure 1, undersampling of the sinusoid at 0.6 f is what allows there to be a lower-frequency "alias", which is a different function that produces the same set of samples. That
The Ghost of Vermeer of Delft Which Can Be Used As a Table The Ghost of Vermeer of Delft Which Can Be Used As a Table The Ghost of Vermeer of Delft Which Can Be Used As a Table is a small Surrealist oil painting by Salvador Dalí. Its full title is The Ghost of Vermeer of Delft Which Can Be Used as a Table (Phenomenologic Theory of Furniture-Nutrition). It makes reference to "The Art of Painting" by Johannes Vermeer, a famous seventeenth-century work in which a painter, thought to be a self-portrait of Vermeer, is depicted with his back to us, in distinctive costume. It is one of a number of paintings