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used to describe a dynamical system which, broadly speaking, has the same behavior averaged over time as averaged over space.
a technique for approximating an unobserved signal from an observed signal containing noise.
using the FFT, multiplication in the frequency domain, and inverse FFT to perform convolution of a long signal with a long FIR.
an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse.
the process of designing a filter.
a device or process that transforms a signal by selectively choosing specific frequencies and leaving others with appropriate gain or as it is.
a type of a signal processing filter whose impulse response is of finite duration.
a mathematical operation that decomposes a function into its constituent frequencies, known as a frequency spectrum.
the number of cycles (of the signal) per second.