Czasowo-częstotliwościowa metoda synchronizacji sygnałów akustycznych na potrzeby transmisji steganograficznej

• Autorzy: Wojtuń J. , Piotrowski Z.

Identyfikatory

DOI

10.15199/59.2017.8-9.57

Warianty tytułu

EN

Time and frequency method of synchronization of acoustic signal used to steganography

• Konferencja: XXXIII Krajowe Sympozjum Telekomunikacji i Teleinformatyki (XXXIII ;13-15.09.2017 ; Warszawa, Polska)
• Języki publikacji: PL

Abstrakty

PL

W artykule zaprezentowano metodę synchronizacji sygnałów akustycznych. Przedstawiony algorytm koryguje zniekształcenia powstające wskutek akwizycji sygnałów, a wynikające z różnic taktowania zegarów w przetwornikach analogowo – cyfrowych i cyfrowo – analogowych. Ponadto korzystając z własności funkcji korelacji wzajemnej algorytm wyznacza wartość opóźnienia sygnału odbieranego względem sygnału nadawanego.

EN

The paper presents a method of synchronization of acoustic signals. Described algorithm corrects the distortion caused by signal acquisition, resulting from clockspeed differences in analog-to-digital and digital-to- analog converters. In addition, using the properties of crosscorrelation function algorithm determines the value of the delay of the received signal relative to the transmitted signal.

Słowa kluczowe

PL

DSSS; korekcja dryftu; steganografia; synchronizacja sygnałów

EN

DSSS; drift correction; steganography; synchronization of signals

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne
• Rocznik: 2017
• Tom: nr 8-9
• Strony: 902--907, CD
• Opis fizyczny: Bibliogr. 38 poz., rys., tab.

Twórcy

autor

Wojtuń J.

• Wojskowa Akademia Techniczna, Wydział Elektroniki, ul. gen. Sylwestra Kaliskiego 2, 00-908 Warszawa 49

autor

Piotrowski Z.

• Wojskowa Akademia Techniczna, Wydział Elektroniki, ul. gen. Sylwestra Kaliskiego 2, 00-908 Warszawa 49

Bibliografia

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