Generalized signal averaging — In many cases only one image with noise is available, and averaging is then realized in a local neighbourhood. Results are acceptable if the noise is smaller in size than the smallest objects of interest in the image, but blurring of edges is a… … Wikipedia
Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… … Wikipedia
Signal transfer function — The signal transfer function (SiTF) is a measure of the signal output versus the signal input of a system such as an infrared system or sensor. [cite book | title = The Optical Transfer Function of Imaging Systems | author = Tom L. Williams |… … Wikipedia
Method of averaging — In the study of dynamical systems, the method of averaging is used to study certain time varying systems by analyzing easier, time invariant systems obtained by averaging the original system. Definition Consider a general, nonlinear dynamical… … Wikipedia
Multiple signal classification — MUSIC redirects here. For other uses, see Music (disambiguation). MUltiple SIgnal Classification (MUSIC) is an algorithm used for frequency estimation[1] and emitter location.[2] Contents 1 MUSIC algorithm … Wikipedia
Evoked potential — Intervention MeSH D005071 An evoked potential (or evoked response ) is an electrical potential recorded from the nervous system of a human or other animal following presentation of a … Wikipedia
Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… … Wikipedia
Protein nuclear magnetic resonance spectroscopy — (usually abbreviated protein NMR) is a field of structural biology in which NMR spectroscopy is used to obtain information about the structure and dynamics of proteins. The field was pioneered by, among others, Kurt Wüthrich, who shared the Nobel … Wikipedia
Optical power meter — in use An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually… … Wikipedia
Signalmittelung — (engl. Signal Averaging) ist ein Verfahren, mit dem das Rauschen in sich wiederholenden Signalen vermindert werden kann. Durch additive Überlagerung wird dabei das Nutzsignal verstärkt, während die Überlagerung des zufälligen Rauschens zu keiner… … Deutsch Wikipedia