TY - JOUR
T1 - Large-Amplitude Dithering Mitigates Glitches in Digital-to-Analogue Converters
AU - Aas Eielsen, Arnfinn
AU - Leth, John-Josef
AU - Fleming, Andrew
AU - Wills, Adrian
AU - Ninness, Brett
PY - 2020
Y1 - 2020
N2 - Glitches introduce impulse-like disturbances which are not be readily attenuated by low-pass filtering. This article presents a model that describes the behaviour of glitches, and a method for mitigation based on a large-amplitude dither signal. Analytical and experimental results demonstrate that a dither signal with sufficient amplitude can mitigate the effect of glitches, when used in conjunction with a low-pass filter. The dither signal in conjunction with low-pass filtering essentially converts a glitch from a high-frequency to low-frequency disturbance.
AB - Glitches introduce impulse-like disturbances which are not be readily attenuated by low-pass filtering. This article presents a model that describes the behaviour of glitches, and a method for mitigation based on a large-amplitude dither signal. Analytical and experimental results demonstrate that a dither signal with sufficient amplitude can mitigate the effect of glitches, when used in conjunction with a low-pass filter. The dither signal in conjunction with low-pass filtering essentially converts a glitch from a high-frequency to low-frequency disturbance.
KW - Digital-analogue conversion
KW - convolution
KW - disturbance reduction
KW - dither
KW - glitch reduction
KW - nonlinear distortion
UR - http://www.scopus.com/inward/record.url?scp=85083302297&partnerID=8YFLogxK
U2 - 10.1109/TSP.2020.2978626
DO - 10.1109/TSP.2020.2978626
M3 - Journal article
SN - 1053-587X
VL - 68
SP - 1950
EP - 1963
JO - I E E E Transactions on Signal Processing
JF - I E E E Transactions on Signal Processing
M1 - 9025028
ER -