sum+signal

См. также в других словарях:

• sum|mons — «SUHM uhnz», noun, plural mons|es, verb. –n. 1. a) a formal order or notice to appear before a law court or judge, especially to answer a charge. b) the writ (writ of summons) by which such an order is made: »He received a summons for fast… …   Useful english dictionary

• Signal to noise ratio (image processing) — The Signal to Noise Ratio (SNR) is used in image processing as a physical measure of the sensitivity of an imaging system. Industry standards measure SNR in decibels (dB) and therefore apply the 20 log rule to the pure SNR ratio. In turn,… …   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

• Signal (electrical engineering) — In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time varying or spatial varying quantity. In the physical world, any quantity measurable through time or over space can be taken as… …   Wikipedia

• Analog signal processing — is any signal processing conducted on analog signals by analog means. Analog indicates something that is mathematically represented as a set of continuous values. This differs from digital which uses a series of discrete quantities to represent… …   Wikipedia

• Common-mode signal — is the component of an analog signal which is present with one sign on all considered conclusions. In electronics where the signal is transferred with differential voltage use, the common mode signal is called a half sum of voltages: When… …   Wikipedia

• Vector sum excited linear prediction — (VSELP) is a speech coding method used in the IS 54 standard. This codec was used in early TDMA cell phones in the United States. It was also used in the first version of RealAudio for audio over the Internet. The IS 54 VSELP standard was… …   Wikipedia

• Peak signal-to-noise ratio — The phrase peak signal to noise ratio, often abbreviated PSNR, is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation. Because many… …   Wikipedia

• Monopulse radar — is an adaptation of conical scanning radar which sends additional information in the radar signal in order to avoid problems caused by rapid changes in signal strength. The system also makes jamming more difficult. Most radars designed since the… …   Wikipedia

• FM broadcasting — See also: frequency modulation and FM broadcast band FM broadcasting is a broadcasting technology pioneered by Edwin Howard Armstrong which uses frequency modulation (FM) to provide high fidelity sound over broadcast radio. The term FM band… …   Wikipedia

• Stereophonic sound — Stereophonic sound, commonly called stereo, is the reproduction of sound, using two or more independent audio channels, through a symmetrical configuration of loudspeakers, in such a way as to create a pleasant and natural impression of sound… …   Wikipedia