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A Wien filter also known as a velocity selector is a device consisting of perpendicular electric and magnetic fields that can be used as a velocity filter for charged particles, for example in electron microscopes and spectrometers. [1] [2] It is used in accelerator mass spectrometry to select particles based on their speed.
In signal processing, the Wiener filter is a filter used to produce an estimate of a desired or target random process by linear time-invariant ( LTI) filtering of an observed noisy process, assuming known stationary signal and noise spectra, and additive noise.
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Jul 21, 2011 · Abstract. Many references on historic and modern papers dealing with the Wien filter are given. Basic optic properties, advantages and disadvantages as well as applications are summarized. Then uncommon systems consisting of Wien filters with different azimuthal orientations, i.e. orthogonal deflection sections, are considered.
- E. Plies, K. Marianowski, T. Ohnweiler
- 2011
The Wiener filter as originally proposed by Norbert Wiener is a signal processing filter which uses knowledge of the statistical properties of both the signal and the noise to reconstruct an optimal estimate of the signal from a noisy one-dimensional time-ordered data stream.
Sep 4, 2022 · 1 Signal Prediction. 2 Wiener Filter. 2.1 Types of Minimization. 3 Wiener-Hopf Equations. 4 The Big Picture. Signal Prediction. The idea of signal prediction is a very important one, not only in the field of signal processing, but in most of engineering. Stated formally, the prediction problem is:
A Wien filter also known as a velocity selector is a device consisting of perpendicular electric and magnetic fields that can be used as a velocity filter for charged particles, for example in electron microscopes and spectrometers. [1] [2] It is used in accelerator mass spectrometry to select particles based on their speed.
Jul 1, 2011 · The Wien filter or ExB velocity filter is probably the first charged particle analyzer and focusing device ever used. Invented by Wien, it appeared later also as ExB velocity filter,...
