51 citations · 135 across the 9 of their papers we have counts for
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cs.IT2013★ 14 cited
Noise Weighting in the Design of ΔΣ Modulators (with a Psychoacoustic Coder as an Example)
Sergio Callegari, Federico Bizzarri
A design flow for ΔΣ modulators is illustrated, allowing quantization noise to be shaped according to an arbitrary weighting profile. Being based on FIR NTFs, possibly with high or…
eess.SY2013★ 4 cited
Should ΔΣ Modulators Used in AC Motor Drives be Adapted to the Mechanical Load of the Motor?
Sergio Callegari, Federico Bizzarri
We consider the use of ΔΣ modulators in ac motor drives, focusing on the many additional degrees of freedom that this option offers over Pulse Width Modulation (PWM). Following som…
cs.IT2013★ 21 cited
Output Filter Aware Optimization of the Noise Shaping Properties of ΔΣ Modulators via Semi-Definite Programming
Sergio Callegari, Federico Bizzarri
The Noise Transfer Function (NTF) of ΔΣ modulators is typically designed after the features of the input signal. We suggest that in many applications, and notably those involving D…