30 relations: Attenuation, Attenuation distortion, Bergeron diagram, Characteristic impedance, Crosstalk, Daisy chain (electrical engineering), Data link, Digital subscriber line, Echo, Echo suppression and cancellation, Electrical impedance, Forward echo, Fresnel equations, Ground-penetrating radar, Impedance matching, Insertion loss, Jitter, Optical fiber, Optical time-domain reflectometer, Radio frequency, Radio receiver, Reflection coefficient, Reflection phase change, Reflections of signals on conducting lines, Ringing (signal), Signal integrity, Standing wave, Standing wave ratio, Time-domain reflectometer, Transmitter.
In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium.
Attenuation distortion is the distortion of an analog signal that occurs during transmission when the transmission medium does not have a flat frequency response across the bandwidth of the medium or the frequency spectrum of the signal.
The Bergeron diagram method is a method to evaluate the effect of a reflection on an electrical signal.
The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current of a single wave propagating along the line; that is, a wave travelling in one direction in the absence of reflections in the other direction.
In electronics, crosstalk is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel.
In electrical and electronic engineering a daisy chain is a wiring scheme in which multiple devices are wired together in sequence or in a ring.
In telecommunication a data link is the means of connecting one location to another for the purpose of transmitting and receiving digital information.
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.
In audio signal processing and acoustics, Echo is a reflection of sound that arrives at the listener with a delay after the direct sound.
Echo suppression and echo cancellation are methods used in telephony to improve voice quality by preventing echo from being created or removing it after it is already present.
Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied.
Forward echo: In a transmission line, a reflection propagating in the same direction as the original wave and consisting of energy reflected back by one discontinuity and then forward again by another discontinuity.
The Fresnel equations (or Fresnel coefficients) describe the reflection and transmission of light (or electromagnetic radiation in general) when incident on an interface between different optical media.
Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface.
In electronics, impedance matching is the practice of designing the input impedance of an electrical load or the output impedance of its corresponding signal source to maximize the power transfer or minimize signal reflection from the load.
In telecommunications, insertion loss is the loss of signal power resulting from the insertion of a device in a transmission line or optical fiber and is usually expressed in decibels (dB).
In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.
An optical fiber or optical fibre is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair.
An optical time-domain reflectometer (OTDR) is an optoelectronic instrument used to characterize an optical fiber.
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
In radio communications, a radio receiver (receiver or simply radio) is an electronic device that receives radio waves and converts the information carried by them to a usable form.
In physics and electrical engineering the reflection coefficient is a parameter that describes how much of an electromagnetic wave is reflected by an impedance discontinuity in the transmission medium.
A phase change sometimes occurs when a wave is reflected.
A signal travelling along an electrical transmission line will be partly, or wholly, reflected back in the opposite direction when the travelling signal encounters a discontinuity in the characteristic impedance of the line, or if the far end of the line is not terminated in its characteristic impedance.
In electronics, signal processing, and video, ringing is oscillation of a signal, particularly in the step response (the response to a sudden change in input).
Signal integrity or SI is a set of measures of the quality of an electrical signal.
In physics, a standing wave – also known as a stationary wave – is a wave which oscillates in time but whose peak amplitude profile does not move in space.
In radio engineering and telecommunications, standing wave ratio (SWR) is a measure of impedance matching of loads to the characteristic impedance of a transmission line or waveguide.
A time-domain reflectometer (TDR) is an electronic instrument that uses time-domain reflectometry to characterize and locate faults in metallic cables (for example, twisted pair wire or coaxial cable).
In electronics and telecommunications, a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.