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30 relations: Acoustics, Alternating current, Artifact (error), Control system, Data, Digital Command Control, Digital data, Digital image processing, Dimmer, Edge detection, Electrical network, Electromagnetic interference, Function (mathematics), Fundamental frequency, Graph of a function, Home automation, Lionel Corporation, Modem, MP3 player, Rail transport modelling, Reconstruction from zero crossings, Sign function, Sine wave, Speech processing, Time, Voltage, Waveform, X10 (industry standard), Zero of a function, Zero-crossing rate.
Acoustics
Acoustics is the branch of physics that deals with the study of all mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
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Alternating current
Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.
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Artifact (error)
In natural science and signal processing, an artifact is any error in the perception or representation of any information, introduced by the involved equipment or technique(s).
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Control system
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.
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Data
Data is a set of values of qualitative or quantitative variables.
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Digital Command Control
Digital Command Control (DCC) is a standard for a system to operate model railways digitally.
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Digital data
Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.
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Digital image processing
In computer science, Digital image processing is the use of computer algorithms to perform image processing on digital images.
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Dimmer
Dimmers are devices connected to a light fixture and used to lower the brightness of light.
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Edge detection
Edge detection includes a variety of mathematical methods that aim at identifying points in a digital image at which the image brightness changes sharply or, more formally, has discontinuities.
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Electrical network
An electrical network is an interconnection of electrical components (e.g. batteries, resistors, inductors, capacitors, switches) or a model of such an interconnection, consisting of electrical elements (e.g. voltage sources, current sources, resistances, inductances, capacitances).
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Electromagnetic interference
Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.
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Function (mathematics)
In mathematics, a function was originally the idealization of how a varying quantity depends on another quantity.
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Fundamental frequency
The fundamental frequency, often referred to simply as the fundamental, is defined as the lowest frequency of a periodic waveform.
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Graph of a function
In mathematics, the graph of a function f is, formally, the set of all ordered pairs, and, in practice, the graphical representation of this set.
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Home automation
Home automation or domotics is building automation for a home, called a smart home or smart house.
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Lionel Corporation
Lionel Corporation was an American toy manufacturer and retailer that was in business from 1900 to 1995.
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Modem
A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.
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MP3 player
An MP3 player or Digital Audio Player is an electronic device that can play digital audio files.
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Rail transport modelling
Railway modelling (UK, Australia and Ireland) or model railroading (US and Canada) is a hobby in which rail transport systems are modelled at a reduced scale.
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Reconstruction from zero crossings
The problem of reconstruction from zero crossings can be stated as: given the zero crossings of a continuous signal, is it possible to reconstruct the signal (to within a constant factor)? Worded differently, what are the conditions under which a signal can be reconstructed from its zero crossings? This problem has two parts.
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Sign function
In mathematics, the sign function or signum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number.
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Sine wave
A sine wave or sinusoid is a mathematical curve that describes a smooth periodic oscillation.
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Speech processing
Speech processing is the study of speech signals and the processing methods of these signals.
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Time
Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.
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Voltage
Voltage, electric potential difference, electric pressure or electric tension (formally denoted or, but more often simply as V or U, for instance in the context of Ohm's or Kirchhoff's circuit laws) is the difference in electric potential between two points.
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Waveform
A waveform is the shape and form of a signal such as a wave moving in a physical medium or an abstract representation.
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X10 (industry standard)
X10 is a protocol for communication among electronic devices used for home automation (domotics).
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Zero of a function
In mathematics, a zero, also sometimes called a root, of a real-, complex- or generally vector-valued function f is a member x of the domain of f such that f(x) vanishes at x; that is, x is a solution of the equation f(x).
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Zero-crossing rate
The zero-crossing rate is the rate of sign-changes along a signal, i.e., the rate at which the signal changes from positive to negative or back.
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References
[1] https://en.wikipedia.org/wiki/Zero_crossing
