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A graph showing variation of quantum efficiency with wavelength of a CCD chip from Wide Field and Planetary Camera 2, formerly installed on the Hubble Space Telescope.. The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio [1] of a photosensitive device, or it may refer to the TMR effect of a magnetic tunnel junction.
The term is sometimes used metaphorically to refer to the ratio of useful information to false or irrelevant data in a conversation or exchange. For example, in online discussion forums and other online communities, off-topic posts and spam are regarded as noise that interferes with the signal of appropriate discussion. [14]
In telecommunication and information theory, the code rate (or information rate [1]) ... For example: The code rate of a convolutional code will typically be 1 ...
RC—Region Code; RC—Release Candidate; RC—Run Commands; RCA—Root Cause Analysis; RCP—Reality Coprocesser; RCS—Revision Control System; RD—Remote Desktop; rd—remove directory; RDBMS—Relational Database Management System; RDC—Remote Desktop Connection; RDF—Resource Description Framework; RDM—Relational Data Model
Download QR code; Print/export Download as PDF; Printable version; In other projects ... As SQNR, like SNR, is a ratio of signal power to some noise power, it can be ...
Download QR code; Print/export ... curves for different digital modulation methods is a common application example ... (energy per bit to noise power spectral density ...
Contrast-to-noise ratio (CNR) [1] is a measure used to determine image quality. CNR is similar to the metric signal-to-noise ratio (SNR), but subtracts a term before taking the ratio. This is important when there is a significant bias in an image, such as from haze. [ 2 ]
A signal sent by an ideal transmitter or received by a receiver would have all constellation points precisely at the ideal locations, however various imperfections in the implementation (such as noise, low image rejection ratio, phase noise, carrier suppression, distortion, etc.) or signal path cause the actual constellation points to deviate ...