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spectral shift

См. также в других словарях:

  • Spectral imaging — is a branch of spectroscopy in which a complete spectrum or some spectral information (such as the Doppler shift or Zeeman splitting of a spectral line) is collected at every location in an image plane. Applications include astronomy, solar… …   Wikipedia

  • Spectral Induced Polarisation — (SIP) is an extension of Induced Polarisation (IP), being itself an extension of DC geoelectric. SIP measures the frequency dependent (i.e. spectral) complex impedance, equivalent to the amount of resistance and phase shift between electrical… …   Wikipedia

  • Spectral line — Continuous spectrum Emission line …   Wikipedia

  • shift — v. & n. v. 1 intr. & tr. change or move or cause to change or move from one position to another. 2 tr. remove, esp. with effort (washing won t shift the stains). 3 sl. a intr. hurry (we ll have to shift!). b tr. consume (food or drink) hastily or …   Useful english dictionary

  • shift — I. verb Etymology: Middle English, from Old English sciftan to divide, arrange; akin to Old Norse skipa to arrange, assign Date: 13th century transitive verb 1. to exchange for or replace by another ; change 2. a. to change the place, position,… …   New Collegiate Dictionary

  • shift — SYN: change. SEE ALSO: deviation. antigenic s. mutation, i.e., sudden change in molecular structure of RNA/DNA in microorganisms, especially viruses, which produces new strains; hosts previously exposed to other strains have little or no acquired …   Medical dictionary

  • Spectral edge frequency — The spectral edge frequency or SEF is a measure used in signal processing. It is usually expressed as SEF x , which stands for the frequency below which x percent of the total power of a given signal are located. (typically x is in the range 75… …   Wikipedia

  • Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Bathochromic shift — is a change of spectral band position in the absorption, reflectance, transmittance, or emission spectrum of a molecule to a longer wavelength (lower frequency).This can occur because of a change in environmental conditions: for example, a change …   Wikipedia

  • Hypsochromic shift — is a change of spectral band position in the absorption, reflectance, transmittance, or emission spectrum of a molecule to a shorter wavelength (higher frequency).This can occur because of a change in environmental conditions: for example, a… …   Wikipedia

  • Least-squares spectral analysis — (LSSA) is a method of estimating a frequency spectrum, based on a least squares fit of sinusoids to data samples, similar to Fourier analysis. [cite book | title = Variable Stars As Essential Astrophysical Tools | author = Cafer Ibanoglu |… …   Wikipedia

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