Highlighting problems occurring in analysis of critical sampling of cosinusoidal signal

• Autorzy: Borys A. , Korohoda P.

Identyfikatory

DOI

10.12716/1001.14.03.27

• Języki publikacji: EN

Abstrakty

EN

When the sampling of an analog signal uses the sampling rate equal to exactly twice the value of a maximal frequency occurring in the signal spectrum, it is called a critical one. As known from the literature, this kind of sampling can be ambiguous in the sense that the reconstructed signal from the samples obtained by criti-cal sampling is not unique. For example, such is the case of sampling of a cosinusoidal signal of any phase. In this paper, we explain in very detail the reasons of this behavior. Furthermore, it is also shown here that manipulating values of the coefficients of the transfer function of an ideal rectangular reconstruction filter at the transition edges from its zero to non-zero values, and vice versa, does not eliminate the ambiguity mentioned above.

Słowa kluczowe

EN

cosinusoidal signal; signal processing; signal spectrum; critical samplinga; analog signal

• Wydawca: Faculty of Navigation, Gdynia Maritime University
• Czasopismo: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
• Rocznik: 2020
• Tom: Vol. 14. no. 3
• Strony: 729--736
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Borys A.

• Gdynia Maritime University, Gdynia, Poland

autor

Korohoda P.

• AGH University of Science and Technology, Kraków, Poland

Bibliografia

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• 6. Borys A., Korohoda P. 2017. Analysis of critical sampling effects revisited, Proceedings of the 21st International Conference Signal Processing: Algorithms, Architectures, Arrangements, and Applications SPA2017, Poznań, Poland, 131 – 136.
• 7. Borys A., Korohoda P. 2020. Impossibility of perfect recovering cosinusoidal signal of any phase sampled with Nyquist rate, TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, submitted for publication.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)