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Nevronski sistem za avtomatsko odstranjevanje ozadja pri Augerjevih spektrihBelič, Igor, 1960- ; Poniku, Besnik ; Jenko, Monika, metalurginjaSpektralno ozadje in šum sta neločljiva sestavna dela Augerjevih spektrov, ki zaradi svoje spremenljivosti onemogočata avtomatsko analizo in obdelavo spektrov. Ključni element zanesljive avtomatske ... analize spektrov je odstranjevanje spektralnega ozadja in šuma. To je postopek, ki mora pri svojem delovanju ohraniti večino informacij spektra, pri tem pa ne sme popačiti in spremeniti vsebine spektra, biti mora predmet temeljite študije, saj je izhodišče nadaljnje analize spektrov. Tudi samo spektralno ozadje vsebuje nekatere pomembne informacije o preiskovanem materialu, zato ga ne smemo preprosto zavreči, moramo ga shraniti za kasnejšo uporabo. Pri odstranjevanju ozadja Augerjevih spektrov smo uporabili nevronske sisteme. Z njimi smo aproksimirali ozadje spektrov. Pri tem nikoli natančno ne vemo, kje je meja med spektri in dejanskim ozadjem. Nevronske sisteme smo uporabili zato, ker za gradnjo modela ozadja ne potrebujejo drugega kot nekaj točk spektra, skozi katere želimo potegniti nelinearno funkcijo. Nevronski sistemi za svoje delovanje ne potrebujejo nobene dodatne informacije v smislu formalnih matematičnih zapisov povezav med glavnimi elementi modeliranega sistema. So tako imenovani brezmodelni aproksimatorji. Nevronske sisteme smo uporabili za določitev splošne oblike spektralnega ozadja. Ugotovili smo, da Augerjev spekter sestavljajo trije deli, in sicer sam spekter, spektralno ozadje ter spektralni vrhovi.Source: Vakuumist : glasilo Društva za vakuumsko tehniko Slovenije. - ISSN 0351-9716 (Letn. 32, št. 1, mar. 2012, str. 12-17)Type of material - article, component partPublish date - 2012Language - slovenianCOBISS.SI-ID - 923306
Author
Belič, Igor, 1960- |
Poniku, Besnik |
Jenko, Monika, metalurginja
Topics
Augerjeva spektroskopija |
AES |
nevronski sistemi |
modeliranje
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source: Vakuumist : glasilo Društva za vakuumsko tehniko Slovenije. - ISSN 0351-9716 (Letn. 32, št. 1, mar. 2012, str. 12-17)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Belič, Igor, 1960- | 03975 |
Poniku, Besnik | 31396 |
Jenko, Monika, metalurginja | 05675 |
Source: Personal bibliographies
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