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Pregled bibliografske jedinice broj: 190938

Analysis of speckle noise in bar-code scanning systems


Marom, E.; Krešić-Jurić, Saša; Bergstein, L.
Analysis of speckle noise in bar-code scanning systems // Journal of the Optical Society of America. A, Optics, image science, and vision., 18 (2001), 4; 888-901 (međunarodna recenzija, članak, znanstveni)


Naslov
Analysis of speckle noise in bar-code scanning systems

Autori
Marom, E. ; Krešić-Jurić, Saša ; Bergstein, L.

Izvornik
Journal of the Optical Society of America. A, Optics, image science, and vision. (1084-7529) 18 (2001), 4; 888-901

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Speckle noise; scannng systems; power spectral density

Sažetak
Laser beams used for bar-code scanning exhibit speckle noise generated by the roughness of the surface on which bar-codes are printed. Statistical properties of a photodetector signal that integrates a time-varying speckle pattern falling on its aperture are analyzed in detail. We derive simple closed-form expressions for the autocorrelation function and the power spectral density of the detector current for scanning beams with arbitrary field distributions. Theoretical calculations are illustrated by numerical simulations as well.

Izvorni jezik
Engleski

Znanstvena područja
Matematika



POVEZANOST RADA


Projekt / tema
0023003

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split

Autor s matičnim brojem:
Saša Krešić-Jurić, (235411)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE