signal function
71Pulse (signal processing) — In signal processing, the term pulse has the following meanings: #A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value. #A rapid change in some… …
72Refinable function — In mathematics, in the area of wavelet analysis, a refinable function is a function which fulfills some kind of self similarity. A function varphi is called refinable with respect to the mask h if:varphi(x)=2cdotsum {k=0}^{N 1} h… …
73Digital Signal 1 — (DS1, sometimes DS 1) is a T carrier signaling scheme devised by Bell Labs.[1] DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North… …
74Radar signal characteristics — A Radar System uses a Radio Frequency electromagnetic signal reflected from a target to determine information about that target. In any radar system, the signal transmitted and received will exhibit many of the characteristics described below.The …
75Origin and function of meiosis — Eukaryotes are organisms with a true nucleus in which the DNA genome is enclosed in a double membrane (e.g. fungi, protozoans, vertebrates, higher plants), in contrast to prokaryotes (bacteria and blue green algae) that lack a nuclear membrane.… …
76Weight function — A weight function is a mathematical device used when performing a sum, integral, or average in order to give some elements more weight or influence on the result than other elements in the same set. They occur frequently in statistics and… …
77Energy (signal processing) — In signal processing, the energy E s of a continuous time signal x ( t ) is defined as:E {s} = langle x(t), x(t) angle = int { infty}^{infty}{|x(t)|^2}dtenergy in this context is not, strictly speaking, the same as the conventional notion of… …
78Hermitian function — In mathematical analysis, a Hermitian function is a complex function with the property that its complex conjugate is equal to the original function with the variable changed in sign::f( x) = overline{f(x)}for all x in the domain of of f. This… …
79Describing function — The Describing function (DF) method of Nikolay Mitrofanovich Krylov and Nikolay Bogolyubov is an approximate procedure for analyzing certain nonlinear control problems. It is based on quasi linearization, which is the approximation of the non… …
80Modulation transfer function (infrared imaging) — The Modulation Transfer Function (MTF) is used to approximate the position of best focus of an infrared imaging system. In an imaging system, best focus is typically achieved when the MTF is between 0.4 and 0.6; most often at 0.5 (50% cutoff… …
