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A 2-bit Adaptive Delta Modulation System with Improved Performance
EURASIP Journal on Advances in Signal Processing volume 2007, Article number: 016286 (2006)
Abstract
A 2-bit adaptive delta modulation system with improved performance is proposed in this paper. Its main characteristic is a new adaptation algorithm that incorporates both memory and look-ahead instantaneous step-size estimation and leads the modulator into generating a 2-bit output codeword. As shown by computer simulation results, the proposed system offers reduced overshoot and fast response to signal variations in comparison to other similar systems.
References
Jayant NS: A daptive delta modulation with a one-bit memory. Bell Systems Technical Journal 1970, 49: 321–342.
Steele R: Delta Modulation Systems. Pentech Press, London, UK; 1975.
Jayant NS: Adaptive quantization with a one-word memory. Bell Systems Technical Journal 1973,52(7):1119–1144.
Cummiskey P, Jayant NS, Flanagan JL: Adaptive quantization in differential PCM coding of speech. Bell Systems Technical Journal 1973,52(7):1105–1118.
Goodman DJ, Gersho A: Theory of an adaptive quantizer. IEEE Transactions on Communications 1974,22(8):1037–1045. 10.1109/TCOM.1974.1092334
Sakane FT, Steele R: Two-bit instantaneously adaptive delta modulation for PCM encodin. The Radio and Electronic Engineer 1978, 48: 187–197. 10.1049/ree.1978.0028
Tombras GS: A study of methods to improve LDM and ADM performance, Ph.D. thesis. University of Thessaloniki, Thessaloniki, Greece; 1988.
Tombras GS, Karybakas CA: New adaptation algorithm for a two-digit adaptive delta modulation system. International Journal of Electronics 1990,68(3):343–349. 10.1080/00207219008921176
Aldajani MA, Sayed AH: A stable adaptive structure for delta modulation with improved performance. Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP '01), May 2001, Salt Lake City, Utah, USA 4: 2621–2624.
Aldajani MA, Sayed AH: Stability and performance analysis of an adaptive sigma-delta modulator. IEEE Transactions on Circuits and Systems II 2001,48(3):233–244. 10.1109/82.924066
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Prosalentis, E.A., Tombras, G.S. A 2-bit Adaptive Delta Modulation System with Improved Performance. EURASIP J. Adv. Signal Process. 2007, 016286 (2006). https://doi.org/10.1155/2007/16286
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DOI: https://doi.org/10.1155/2007/16286