Synchronization of transmission systems with ANS-DM codecs

• Autorzy: Godek Juliusz , Golański Ryszard

Identyfikatory

DOI

10.5604/01.3001.0015.2999

• Języki publikacji: EN

Abstrakty

EN

Adaptive Delta Modulation with Non-uniform Sampling (ANS-DM) is one of the waveform coding techniques, where a sampling instant and a quantization step size are adapted to the signal. The ANS-DM modulator produces an output binary stream, that carries information about the signal and includes necessary data of coder parameters (sampling instant and quantization step). In the demodulator, these values are recovered for proper signal reconstruction. The paper reports the problem of synchronizing clocks (transmitting and receiving) in the (ANS-DM) delta codecs systems. The original synchronization method, valuable in systems dedicated to the transmission of the bits with variable time duration was projected and experimentally verified. Performed measurements and observations have shown the elimination of the synchronization loss phenomenon.

Słowa kluczowe

EN

delta modulation; non-uniform sampling; Adaptive Delta Modulation with Non-uniform Sampling (ANS-DM); ANS-DM; digital PLL; digital transmission; one-bit codec delta

PL

modulacja delta; nierównomierne próbkowanie; ANS-DM; cyfrowy PLL; transmisja cyfrowa; jednobitowy kodek delta

• Wydawca: Państwowa Wyższa Szkoła Zawodowa w Tarnowie
• Czasopismo: Science, Technology and Innovation
• Rocznik: 2021
• Tom: Vol. 12, no. 1
• Strony: 37--44
• Opis fizyczny: Bibliogr. 9 poz., tab., wykr.

Twórcy

autor

Godek Juliusz

• University of Applied Sciences in Tarnow, Politechnic Faculty, Department of Electronics, Telecommunications and Mechatronics ul. Mickiewicza 8, 33-100 Tarnów, Poland

autor

Golański Ryszard

• University of Applied Sciences in Tarnow, Politechnic Faculty, Department of Electronics, Telecommunications and Mechatronics ul. Mickiewicza 8, 33-100 Tarnów, Poland

Bibliografia

• [1] Marvasti F. Nonuniform sampling. Theory and practice. New York: Kluwer Academic Publishers; 2001. doi: https://doi.org/10.1007/978-1-4615-1229-5.
• [2] Godek J, Golański R, Kołodziej J, Stępień J. New synchronization method for transmission systems with variable length of bits. International Journal of Electronics and Telecommunications. 2015;61(1):31–36. doi: https://doi.org/10.1515/eletel-2015-0004.
• [3] Golański R. A/D and D/A delta converters with adaptive sampling–methods analysis and performances evaluation. Kraków: Akademia Górniczo-Hutnicza Uczelniane Wydawnictwa Naukowo-Dydaktyczne; 2005.
• [4] Zhu YS, Leung W, Wong CM. Adaptive non-uniform sampling delta modulation for audio/image processing. IEEE Transactions on Consumer Electronics. 1996;42(4):1062–1072. doi: https://doi.org/10.1109/30.555910.
• [5] Golański R. Study on the dynamic range of delta modulations with time-varying sampling periods. IEEE Signal Processing Letters. 2004;11(8):666–670. doi: https://doi. org/10.1109/LSP.2004.831727.
• [6] Bregni S. Synchronization of digital telecommunications networks. New York, Chichester: John Wiley and Sons; 2002. doi: https://doi.org/10.1002/0470845880.
• [7] Godek J, Golański R, Kołodziej J, Stępień J. Transmission system with variable duration of bit – proposal of synchronization. In: 2014 International Conference on Signals and Electronic Systems (ICSES). Piscataway, NJ: Institute of Electrical and Electronic Engineers (IEEE); 2014. doi: https://doi.org/10.1109/ICSES.2014.6948717.
• [8] Godek J, Golański R, Machowski W, Kołodziej J, Stępień J. Proposition of the full synchronization method for transmission systems with variable duration of bits. In: 2016 International Conference on Signals and Electronic Systems (ICSES). Piscataway, NJ: Institute of Electrical and Electronic Engineers (IEEE); 2016. doi: https://doi.org/10.1109/ICSES.2016.7593864.
• [9] Godek J. Adaptacyjny, niskostratny kodek delta z nierównomiernym próbkowaniem – problemy synchronizacji i rozwiązania układowego w technologii CMOS [Adaptive, low loss delta codec with nonuniform sampling – synchronization problems and systemic solution in CMOS technology]. Doctoral dissertation. Kraków: AGH University of Science and Technology. Faculty of Computer Science, Electronics and Telecommunications; 2016.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).