Spectral bandwidth

Spectral bandwidth
A&V
In telecommunications, the spectral bandwidth for single peak devices is the difference between the wavelengths at which the radiant intensity is 50% (or 3 dB) down from the maximum value.

Audio and video glossary. 2014.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Bandwidth-limited pulse — A bandwidth limited pulse (also known as Fourier transform limited pulse, or more commonly, transform limited pulse) is a pulse of a wave that has the minimum possible duration for a given spectral bandwidth. Optical pulses of this type can be… …   Wikipedia

  • Bandwidth (computing) — For other uses, see Bandwidth. In computer networking and computer science, bandwidth,[1] network bandwidth,[2] data bandwidth,[3] or digital bandwidth[4][5] is a measure of available or consumed data communication resources expressed in… …   Wikipedia

  • Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …   Wikipedia

  • Bandwidth (signal processing) — Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. In case of a baseband channel or signal, the bandwidth is… …   Wikipedia

  • Bandwidth extension — of signal is defined as the deliberate process of expanding the frequency range (bandwidth) of a signal in which it contains an appreciable and useful content, and/or the frequency range in which its effects are such. Its significant advancement… …   Wikipedia

  • Bandwidth — has several related meanings:* Bandwidth (computing): a rate of data transfer, or bit rate, measured in bits per second * Bandwidth (signal processing): a measure of the width of a range of frequencies, measured in hertz * Spectral linewidth: the …   Wikipedia

  • Spectral mutability — is a desired capabilityClarifyme|date=August 2008 where RF systems have the appropriate mix of both manual and automatic flexibility and agility to affect all aspects of their operating parameters (e.g. waveform, bandwidth, power, frequency,… …   Wikipedia

  • Spectral density — In statistical signal processing and physics, the spectral density, power spectral density (PSD), or energy spectral density (ESD), is a positive real function of a frequency variable associated with a stationary stochastic process, or a… …   Wikipedia

  • Spectral linewidth — The spectral linewidth characterizes the width of a spectral line, such as in the electromagnetic emission spectrum of an atom, or the frequency spectrum of an acoustic or electronic system. For example, the emission of an atom usually has a very …   Wikipedia

  • Spectral mask — In telecommunications, a spectral mask, also known as a channel mask or transmission mask, is a mathematically defined set of lines applied to the levels of radio (or optical) transmissions. The spectral mask is generally intended to reduce… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”