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Sergio Callegari
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- affiliation: University of Bologna, Italy
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2020 – today
- 2020
- [j15]Sergio Callegari
, Federico Bizzarri
Discrete Programming Entailing Circulant Quadratic Forms: Refinement of a Heuristic Approach Based on ΔΣ Modulation. IEEE Trans. Circuits Syst. II Express Briefs 67-II(5): 926-930 (2020)
2010 – 2019
- 2019
- [c32]Sergio Callegari, Mauro Mangia, Riccardo Rovatti, Gianluca Setti:
Compressed Sensing of ΔΣ Streams. ICECS 2019: 835-838 - 2018
- [j14]Sergio Callegari
Optimal Coefficient Quantization in Optimal-NTF Δ!Σ Modulators. IEEE Trans. Circuits Syst. II Express Briefs 65-II(5): 542-546 (2018) - [c31]Federico Bizzarri, Angelo Brambilla
On the Benefit of Adopting Saturable Inductors in Switching-Mode Power-Supplies: A Case Study. ISCAS 2018: 1-5 - 2017
- [j13]Federico Bizzarri
Efficient and Reliable Small-Signal Estimate of Quantization Noise Contribution to Phase Noise in ΔΣ Fractional-N PLL. IEEE Trans. Circuits Syst. I Regul. Pap. 64-I(6): 1494-1503 (2017) - [j12]Federico Bizzarri
On the Mechanisms Governing Spurious Tone Injection in Fractional PLLs. IEEE Trans. Circuits Syst. II Express Briefs 64-II(11): 1267-1271 (2017) - [c30]Sergio Callegari, Federico Bizzarri, Angelo Brambilla
On the multistage design of optimal-NTF ΔΣ modulators - The case of fractional synthesizers. ECCTD 2017: 1-4 - [c29]Federico Bizzarri, Angelo Brambilla
Constant-time discontinuity map for forward sensitivity analysis to initial conditions: Spurs detection in fractional-N PLL as a case study. ISCAS 2017: 1-4 - 2016
- [c28]Sergio Callegari:
True random number generators as configware for mixed mode programmable systems on chip. ISCAS 2016: 1850-1853 - 2015
- [j11]Sergio Callegari
Optimal design of the noise transfer function of ΔΣ modulators: IIR strategies, FIR strategies, FIR strategies with preassigned poles. Signal Process. 114: 117-130 (2015) - [c27]Sergio Callegari:
Evaluation of a couple of true random number generators with liberally licensed hardware, firmware, and drivers. ICECS 2015: 197-200 - [c26]Sergio Callegari, Federico Bizzarri
Optimal quantization noise management in wideband fractional-N PLLs. ISCAS 2015: 561-564 - [c25]Sergio Callegari, Federico Bizzarri
Teaching ΔΣ modulators with PyDSM and scientific Python. ISCAS 2015: 1802-1805 - 2014
- [c24]Ahmad Beirami, Hamid Nejati, Sergio Callegari
Fundamental performance limits of chaotic-map random number generators. Allerton 2014: 1126-1131 - [c23]Mattia Fabbri, Sergio Callegari
Very low cost entropy source based on chaotic dynamics retrofittable on networked devices to prevent RNG attacks. ICECS 2014: 175-178 - [c22]Sergio Callegari
Achievement of preassigned spectra in the synthesis of band-pass constant-envelope signals by rapidly hopping through discrete frequencies. ISCAS 2014: 2776-2779 - [i7]Sergio Callegari:
Coding of Stereo Signals by a Single Digital ΔΣ Modulator. CoRR abs/1409.7367 (2014) - [i6]Mattia Fabbri, Sergio Callegari:
Very Low Cost Entropy Source Based on Chaotic Dynamics Retrofittable on Networked Devices to Prevent RNG Attacks. CoRR abs/1412.6067 (2014) - [i5]Sergio Callegari:
Achievement of Preassigned Spectra in the Synthesis of Band-Pass Constant-Envelope Signals by Rapidly Hopping through Discrete Frequencies. CoRR abs/1412.6357 (2014) - 2013
- [j10]Sergio Callegari
On the usage of resonate and fire dynamics in the complex oscillation-based test approach. Int. J. Circuit Theory Appl. 41(12): 1290-1317 (2013) - [j9]Sergio Callegari
Output Filter Aware Optimization of the Noise Shaping Properties of ΔΣ Modulators Via Semi-Definite Programming. IEEE Trans. Circuits Syst. I Regul. Pap. 60-I(9): 2352-2365 (2013) - [j8]Sergio Callegari
Noise Weighting in the Design of ΔΣ Modulators (With a Psychoacoustic Coder as an Example). IEEE Trans. Circuits Syst. II Express Briefs 60-II(11): 756-760 (2013) - [c21]Salvatore Caporale
Constant envelope pseudo orthogonal excitations for ultrasound testing. DSP 2013: 1-8 - [c20]Sergio Callegari
Coding of stereo signals by a single digital ΔΣ modulator. ICECS 2013: 589-592 - [i4]Sergio Callegari
A CMOS Tailed Tent Map for the Generation of Uniformly Distributed Chaotic Sequences. CoRR abs/1302.0511 (2013) - [i3]Sergio Callegari, Federico Bizzarri:
Output Filter Aware Optimization of the Noise Shaping Properties of ΔΣ Modulators via Semi-Definite Programming. CoRR abs/1302.3020 (2013) - [i2]Sergio Callegari, Federico Bizzarri:
Should ΔΣ Modulators Used in AC Motor Drives be Adapted to the Mechanical Load of the Motor? CoRR abs/1302.7172 (2013) - [i1]Sergio Callegari, Federico Bizzarri:
Noise Weighting in the Design of ΔΣ Modulators (with a Psychoacoustic Coder as an Example). CoRR abs/1309.6151 (2013) - 2012
- [c19]Sergio Callegari
Should ΔΣ modulators used in AC motor drives be adapted to the mechanical load of the motor? ICECS 2012: 849-852 - [c18]Federico Bizzarri
Towards a nearly optimal synthesis of power bridge commands in the driving of AC motors. ISCAS 2012: 2119-2122 - 2011
- [c17]Sergio Callegari
Resonate and fire dynamics in Complex Oscillation Based Test of analog filters. ISCAS 2011: 1331-1334 - 2010
- [j7]Sergio Callegari
Complex Oscillation-Based Test and Its Application to Analog Filters. IEEE Trans. Circuits Syst. I Regul. Pap. 57-I(5): 956-969 (2010) - [j6]Sergio Callegari
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. 58(12): 6126-6139 (2010) - [c16]Federico Bizzarri
Practical Solution of Periodic Filtered Approximation as a Convex Quadratic Integer Program. CSDM 2010: 149-160 - [c15]Sergio Callegari
A heuristic solution to the optimisation of flutter control in compression systems (and to some more binary quadratic programming problems) via ΔΣ modulation circuits. ISCAS 2010: 1815-1818
2000 – 2009
- 2009
- [c14]Federico Bizzarri
On the synthesis of periodic signals by discrete pulse-trains and optimisation techniques. ECCTD 2009: 584-587 - [c13]Sergio Callegari
Complex Oscillation Based Test of Analog Filters. ISCAS 2009: 2854-2857 - [p2]Fabio Pareschi
Implementation of Low EMI Spread Spectrum Clock Generators Exploiting a Chaos-Based Jitter. Intelligent Computing Based on Chaos 2009: 145-171 - [p1]Fabio Pareschi
Circuits and Systems for the Synthesis of Chaotic Signals in Engineering Applications. Intelligent Computing Based on Chaos 2009: 173-196 - 2008
- [c12]Sergio Callegari
Introducing Complex Oscillation Based Test: an application example targeting Analog to Digital Converters. ISCAS 2008: 320-323 - 2007
- [c11]Riccardo Rovatti
On the convergence to regime of ADC-based true random number generators. ECCTD 2007: 635-638 - [c10]Sergio Callegari
Some more robustness conditions for the invariant density of a class of 1D maps under additive noise. ECCTD 2007: 1038-1041 - [c9]Sergio Callegari
ADCs, Chaos and TRNGs: a Generalized View Exploiting Markov Chain Lumpability Properties. ISCAS 2007: 213-216 - 2006
- [c8]Pietro Savazzi, Paolo Gamba, Sergio Callegari:
An All-Digital Clock Recovery Architecture for the BRAN Hiperaccess Uplink Receiver. VTC Spring 2006: 2206-2210 - 2005
- [j5]Sergio Callegari
First direct implementation of a true random source on programmable hardware. Int. J. Circuit Theory Appl. 33(1): 1-16 (2005) - [j4]Sergio Callegari, Riccardo Rovatti, Gianluca Setti:
Embeddable ADC-based true random number generator for cryptographic applications exploiting nonlinear signal processing and chaos. IEEE Trans. Signal Process. 53(2-2): 793-805 (2005) - 2004
- [c7]Stefano Poli, Sergio Callegari, Riccardo Rovatti, Gianluca Setti:
Post-processing of data generated by a chaotic pipelined ADC for the robust generation of perfectly random bitstreams. ISCAS (4) 2004: 585-588 - 2002
- [j3]Sergio Callegari
Generation of band-pass constant-envelope signals with a pre-assigned spectrum: a synthesis procedure. Int. J. Circuit Theory Appl. 30(5): 481-486 (2002) - [j2]Gianluca Setti, Gianluca Mazzini, Riccardo Rovatti
Statistical modeling of discrete-time chaotic processes-basic finite-dimensional tools and applications. Proc. IEEE 90(5): 662-690 (2002) - [c6]Sergio Callegari
Folded sums of chaotic trajectories distribute uniformly. ISCAS (3) 2002: 891-894 - [c5]Riccardo Rovatti, Sergio Callegari
On the correlation of non-jittered and chaotically-jittered PWM signals carrying maximum information. ISCAS (3) 2002: 895-898 - 2001
- [c4]Sergio Callegari
Adaptive median thresholding for the generation of high-data-rate random-like unpredictable binary sequences with chaos. ISCAS (3) 2001: 221-224 - 2000
- [j1]Sergio Callegari, Gianluca Setti:
Mapping duality as a means to allow finite βF compensation in bipolar log filters. Int. J. Circuit Theory Appl. 28(4): 335-351 (2000) - [c3]Sergio Callegari
A BICMOS PDF notch circuit for FM-DCSK communication over selective channels. ISCAS 2000: 445-448
1990 – 1999
- 1999
- [c2]Sergio Callegari
Improved bandwidth, low voltage log domain building blocks. ISCAS (2) 1999: 677-680 - 1998
- [c1]Sergio Callegari
Cell biasing and balancing in E-cell based single-ended log filters. ICECS 1998: 377-380
Coauthor Index
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