Definition: The Wiener filter is an MSE-optimal stationary filter that uses nonlinear equations for IIR filters or linear equations for FIR filters to estimate a desired output from an observed noisy signal. The underlying assumption is that the signal and noise are stationary and uncorrelated. Popular uses of Wiener filters are denoising, deblurring and upsampling.Definition: The Wiener filter is an MSE-optimal stationary filter that uses nonlinear equations for IIR filters or linear equations for FIR filters to estimate a desired output from an observed noisy signal. The underlying assumption is that the signal and noise are stationary and uncorrelated. Popular uses of Wiener filters are denoising, deblurring and upsampling.
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