Sergio Callegari

Orcid: 0000-0001-6719-598X

Affiliations:
  • University of Bologna, Italy


According to our database1, Sergio Callegari authored at least 50 papers between 1998 and 2020.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2020
Discrete Programming Entailing Circulant Quadratic Forms: Refinement of a Heuristic Approach Based on ΔΣ Modulation.
IEEE Trans. Circuits Syst. II Express Briefs, 2020

2019
Compressed Sensing of ΔΣ Streams.
Proceedings of the 26th IEEE International Conference on Electronics, Circuits and Systems, 2019

2018
Optimal Coefficient Quantization in Optimal-NTF Δ!Σ Modulators.
IEEE Trans. Circuits Syst. II Express Briefs, 2018

On the Benefit of Adopting Saturable Inductors in Switching-Mode Power-Supplies: A Case Study.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

2017
On the Mechanisms Governing Spurious Tone Injection in Fractional PLLs.
IEEE Trans. Circuits Syst. II Express Briefs, 2017

Efficient and Reliable Small-Signal Estimate of Quantization Noise Contribution to Phase Noise in ΔΣ Fractional-<i>N</i> PLL.
IEEE Trans. Circuits Syst. I Regul. Pap., 2017

Constant-time discontinuity map for forward sensitivity analysis to initial conditions: Spurs detection in fractional-N PLL as a case study.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2017

On the multistage design of optimal-NTF ΔΣ modulators - The case of fractional synthesizers.
Proceedings of the 2017 European Conference on Circuit Theory and Design, 2017

2016
True random number generators as configware for mixed mode programmable systems on chip.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

2015
Optimal design of the noise transfer function of ΔΣ modulators: IIR strategies, FIR strategies, FIR strategies with preassigned poles.
Signal Process., 2015

Optimal quantization noise management in wideband fractional-N PLLs.
Proceedings of the 2015 IEEE International Symposium on Circuits and Systems, 2015

Teaching ΔΣ modulators with PyDSM and scientific Python.
Proceedings of the 2015 IEEE International Symposium on Circuits and Systems, 2015

Evaluation of a couple of true random number generators with liberally licensed hardware, firmware, and drivers.
Proceedings of the 2015 IEEE International Conference on Electronics, 2015

2014
Achievement of preassigned spectra in the synthesis of band-pass constant-envelope signals by rapidly hopping through discrete frequencies.
Proceedings of the IEEE International Symposium on Circuits and Systemss, 2014

Very low cost entropy source based on chaotic dynamics retrofittable on networked devices to prevent RNG attacks.
Proceedings of the 21st IEEE International Conference on Electronics, Circuits and Systems, 2014

Fundamental performance limits of chaotic-map random number generators.
Proceedings of the 52nd Annual Allerton Conference on Communication, 2014

2013
Noise Weighting in the Design of ΔΣ Modulators (With a Psychoacoustic Coder as an Example).
IEEE Trans. Circuits Syst. II Express Briefs, 2013

Output Filter Aware Optimization of the Noise Shaping Properties of ΔΣ Modulators Via Semi-Definite Programming.
IEEE Trans. Circuits Syst. I Regul. Pap., 2013

On the usage of resonate and fire dynamics in the complex oscillation-based test approach.
Int. J. Circuit Theory Appl., 2013

A CMOS Tailed Tent Map for the Generation of Uniformly Distributed Chaotic Sequences
CoRR, 2013

Coding of stereo signals by a single digital ΔΣ modulator.
Proceedings of the 20th IEEE International Conference on Electronics, 2013

Constant envelope pseudo orthogonal excitations for ultrasound testing.
Proceedings of the 18th International Conference on Digital Signal Processing, 2013

2012
Towards a nearly optimal synthesis of power bridge commands in the driving of AC motors.
Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

Should ΔΣ modulators used in AC motor drives be adapted to the mechanical load of the motor?
Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

2011
Resonate and fire dynamics in Complex Oscillation Based Test of analog filters.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

2010
On the Approximate Solution of a Class of Large Discrete Quadratic Programming Problems by Delta Sigma Modulation: The Case of Circulant Quadratic Forms.
IEEE Trans. Signal Process., 2010

Complex Oscillation-Based Test and Its Application to Analog Filters.
IEEE Trans. Circuits Syst. I Regul. Pap., 2010

A heuristic solution to the optimisation of flutter control in compression systems (and to some more binary quadratic programming problems) via ΔΣ modulation circuits.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2010), May 30, 2010

Practical Solution of Periodic Filtered Approximation as a Convex Quadratic Integer Program.
Proceedings of the Complex Systems Design & Management, 2010

2009
Implementation of Low EMI Spread Spectrum Clock Generators Exploiting a Chaos-Based Jitter.
Proceedings of the Intelligent Computing Based on Chaos, 2009

Circuits and Systems for the Synthesis of Chaotic Signals in Engineering Applications.
Proceedings of the Intelligent Computing Based on Chaos, 2009

Complex Oscillation Based Test of Analog Filters.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2009), 2009

On the synthesis of periodic signals by discrete pulse-trains and optimisation techniques.
Proceedings of the 19th European Conference on Circuit Theory and Design, 2009

2008
Introducing Complex Oscillation Based Test: an application example targeting Analog to Digital Converters.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

2007
ADCs, Chaos and TRNGs: a Generalized View Exploiting Markov Chain Lumpability Properties.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2007), 2007

On the convergence to regime of ADC-based true random number generators.
Proceedings of the 18th European Conference on Circuit Theory and Design, 2007

Some more robustness conditions for the invariant density of a class of 1D maps under additive noise.
Proceedings of the 18th European Conference on Circuit Theory and Design, 2007

2006
An All-Digital Clock Recovery Architecture for the BRAN Hiperaccess Uplink Receiver.
Proceedings of the 63rd IEEE Vehicular Technology Conference, 2006

2005
Embeddable ADC-based true random number generator for cryptographic applications exploiting nonlinear signal processing and chaos.
IEEE Trans. Signal Process., 2005

First direct implementation of a true random source on programmable hardware.
Int. J. Circuit Theory Appl., 2005

2004
Post-processing of data generated by a chaotic pipelined ADC for the robust generation of perfectly random bitstreams.
Proceedings of the 2004 International Symposium on Circuits and Systems, 2004

2002
Statistical modeling of discrete-time chaotic processes-basic finite-dimensional tools and applications.
Proc. IEEE, 2002

Generation of band-pass constant-envelope signals with a pre-assigned spectrum: a synthesis procedure.
Int. J. Circuit Theory Appl., 2002

On the correlation of non-jittered and chaotically-jittered PWM signals carrying maximum information.
Proceedings of the 2002 International Symposium on Circuits and Systems, 2002

Folded sums of chaotic trajectories distribute uniformly.
Proceedings of the 2002 International Symposium on Circuits and Systems, 2002

2001
Adaptive median thresholding for the generation of high-data-rate random-like unpredictable binary sequences with chaos.
Proceedings of the 2001 International Symposium on Circuits and Systems, 2001

2000
Mapping duality as a means to allow finite βF compensation in bipolar log filters.
Int. J. Circuit Theory Appl., 2000

A BICMOS PDF notch circuit for FM-DCSK communication over selective channels.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2000

1999
Improved bandwidth, low voltage log domain building blocks.
Proceedings of the 1999 International Symposium on Circuits and Systems, ISCAS 1999, Orlando, Florida, USA, May 30, 1999

1998
Cell biasing and balancing in E-cell based single-ended log filters.
Proceedings of the 5th IEEE International Conference on Electronics, Circuits and Systems, 1998


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