The adaptive system design by 16-bit fixed point processing enables to employ an inexpensive digital signal processor (DSP). The narrow dynamic range of such 16 bits, however, does not guarantee the same performance that is confirmed beforehand by computer simulations. A cause of degrading the performance originates in the operation halving the word length doubled by multiplication. This operation rounds off small signals staying in the lower half of the doubled word length to zero. This problem can be solved by limiting the multiplier to only its sign (
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Kensaku FUJII, Yoshinori TANAKA, "Analysis on the Convergence Property of Quantized-x NLMS Algorithm" in IEICE TRANSACTIONS on Fundamentals,
vol. E84-A, no. 8, pp. 1840-1847, August 2001, doi: .
Abstract: The adaptive system design by 16-bit fixed point processing enables to employ an inexpensive digital signal processor (DSP). The narrow dynamic range of such 16 bits, however, does not guarantee the same performance that is confirmed beforehand by computer simulations. A cause of degrading the performance originates in the operation halving the word length doubled by multiplication. This operation rounds off small signals staying in the lower half of the doubled word length to zero. This problem can be solved by limiting the multiplier to only its sign (
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e84-a_8_1840/_p
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@ARTICLE{e84-a_8_1840,
author={Kensaku FUJII, Yoshinori TANAKA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Analysis on the Convergence Property of Quantized-x NLMS Algorithm},
year={2001},
volume={E84-A},
number={8},
pages={1840-1847},
abstract={The adaptive system design by 16-bit fixed point processing enables to employ an inexpensive digital signal processor (DSP). The narrow dynamic range of such 16 bits, however, does not guarantee the same performance that is confirmed beforehand by computer simulations. A cause of degrading the performance originates in the operation halving the word length doubled by multiplication. This operation rounds off small signals staying in the lower half of the doubled word length to zero. This problem can be solved by limiting the multiplier to only its sign (
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Analysis on the Convergence Property of Quantized-x NLMS Algorithm
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1840
EP - 1847
AU - Kensaku FUJII
AU - Yoshinori TANAKA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E84-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2001
AB - The adaptive system design by 16-bit fixed point processing enables to employ an inexpensive digital signal processor (DSP). The narrow dynamic range of such 16 bits, however, does not guarantee the same performance that is confirmed beforehand by computer simulations. A cause of degrading the performance originates in the operation halving the word length doubled by multiplication. This operation rounds off small signals staying in the lower half of the doubled word length to zero. This problem can be solved by limiting the multiplier to only its sign (
ER -