Todd J. Freeborn

Publication Activity (10 Years)

Years Active: 2010-2024
Publications (10 Years): 38

Top Topics

Transfer Function

Top Venues

Circuits Syst. Signal Process.

Publications

Mitar Simic, Todd J. Freeborn, Goran M. Stojanovic
Smartphone-Based Parameter Estimation of the Cole-Impedance Model for Assessment of Agricultural Goods. IEEE Access 12 (2024)
Todd J. Freeborn, Jacob A. Mota
Ultrasound DICOM Renamer: A MATLAB graphical user interface for workflow improvement for DICOM ultrasound renaming. SoftwareX 26 (2024)
Todd J. Freeborn, Shelby Critcher, Gwendolyn L. Hooper
Segmental Tissue Resistance of Healthy Young Adults during Four Hours of 6-Degree Head-Down-Tilt Positioning. Sensors 23 (5) (2023)
Todd J. Freeborn, Shelby Critcher, Gwendolyn L. Hooper
Short-Term Segmental Bioimpedance Alterations During 6° Head-Down Tilt. EMBC (2021)
Shelby Critcher, Todd J. Freeborn
Localized Bioimpedance Measurements with the MAX3000x Integrated Circuit: Characterization and Demonstration. Sensors 21 (9) (2021)
Todd J. Freeborn, Shelby Critcher
Bioimpedance Alterations of Knee Site Tissues During Dynamic Activity of Varying Intensity. TSP (2021)
Shelby Critcher, Todd J. Freeborn
Residual Impedance Impact on MAX30001 Accuracy for Bioimpedance Applications. LASCAS (2021)
Todd J. Freeborn, Memorie Gosa
Analysis of localized bioimpedance from healthy young adults during activities of the vocal folds using Cole-impedance model representation. Biomed. Signal Process. Control. 68 (2021)
Shelby Critcher, Todd J. Freeborn
Flexible PCB Failures From Dynamic Activity and Their Impacts on Bioimpedance Measurements: A Wearable Case Study. IEEE Open J. Circuits Syst. 2 (2021)
Todd J. Freeborn, Shelby Critcher
Estimating Cole-Impedance Parameters from Limited Frequency-Band Impedance Measurements. LASCAS (2021)
Shelby Critcher, Todd J. Freeborn
Multi-Site Impedance Measurement System based on MAX30001 Integrated-Circuit. MWSCAS (2020)
Bo Fu, Ali Shahabi, Todd J. Freeborn, Andrew N. Lemmon, Mithat C. Kisacikoglu
Experimental Validation of CT-Snubber for Multichip SiC MOSFET Power Module. MWSCAS (2020)
Norbert Herencsar, Todd J. Freeborn, Aslihan Kartci, Oguzhan Cicekoglu
A Comparative Study of Two Fractional-Order Equivalent Electrical Circuits for Modeling the Electrical Impedance of Dental Tissues. Entropy 22 (10) (2020)
Robert Joseph Mathews, Todd J. Freeborn
Modeling and experimental validation of parasitic capacitance effects on emulated bioimpedance measurements with high-impedance residuals. Int. J. Circuit Theory Appl. 48 (7) (2020)
Todd J. Freeborn, Gabriella Regard, Bo Fu
Localized Bicep Tissue Bioimpedance Alterations Following Eccentric Exercise in Healthy Young Adults. IEEE Access 8 (2020)
David Kubánek, Todd J. Freeborn, Jaroslav Koton, Jan Dvorak
Transfer Functions of Fractional-Order Band-Pass Filter with Arbitrary Magnitude Slope in Stopband. TSP (2019)
David Kubánek, Todd J. Freeborn, Jaroslav Koton
Fractional-order band-pass filter design using fractional-characteristic specimen functions. Microelectron. J. 86 (2019)
Todd J. Freeborn
Performance evaluation of raspberry Pi platform for bioimpedance analysis using least squares optimization. Pers. Ubiquitous Comput. 23 (2) (2019)
Todd J. Freeborn, Ahmed S. Elwakil
Rates and Effects of Local Minima on Fractional-Order Circuit Model Parameters Extracted from Supercapacitor Discharging Using Least Squares Optimization. Circuits Syst. Signal Process. 38 (5) (2019)
Blake W. Nelson, Andrew N. Lemmon, Brian T. DeBoi, Todd J. Freeborn
Modeling and Validation of Fixture-Induced Error for Impedance Measurements. IEEE Trans. Instrum. Meas. 68 (1) (2019)
Todd J. Freeborn, David Kubánek, Jaroslav Koton, Jan Dvorak
Fractional-order Lowpass Elliptic Responses of (1+α)-order Transfer Functions. TSP (2018)
Abdulwadood A. Al-Ali, Ahmed S. Elwakil, Brent Maundy, Todd J. Freeborn
Extraction of Phase Information from Magnitude-Only Bio-impedance Measurements Using a Modified Kramers-Kronig Transform. Circuits Syst. Signal Process. 37 (8) (2018)
Todd J. Freeborn, Ahmed S. Elwakil, Anis Allagui
Supercapacitor Fractional-Order Model Discharging from Polynomial Time-Varying Currents. ISCAS (2018)
Jaroslav Koton, Jorgen Hagset Stavnesli, Todd J. Freeborn
Performance Analysis of Oustaloup Approximation for the Design of Fractional-Order Analogue Circuits. ICUMT (2018)
Bo Fu, Todd J. Freeborn
Estimating Localized Bio-impedance with Measures from Multiple Redundant Electrode Configurations. EMBC (2018)
Todd J. Freeborn, Gary W. Bohannan
Changes of Fractional-Order Model Parameters in Biceps Tissue from Fatiguing Exercise. ISCAS (2018)
Ahmed S. Elwakil, Ahmed G. Radwan, Todd J. Freeborn, Anis Allagui, Brent J. Maundy, Mohamed E. Fouda
Low-voltage commercial super-capacitor response to periodic linear-with-time current excitation: a case study. IET Circuits Devices Syst. 11 (3) (2017)
Todd J. Freeborn, Ahmed S. Elwakil
Variability of supercapacitor fractional-order parameters extracted from discharging behavior using least squares optimization. ISCAS (2017)
Todd J. Freeborn, Anis Allagui, Ahmed S. Elwakil
Modelling supercapacitors leakage behaviour using a fractional-order model. ECCTD (2017)
Costas Vastarouchas, Georgia Tsirimokou, Todd J. Freeborn, Costas Psychalinos, Ahmed S. Elwakil
Design of a wood tissue impedance emulator in monolithic form. ECCTD (2017)
Todd J. Freeborn, Ahmed S. Elwakil, Brent Maundy
Electrode location impact on cole-impedance parameters using magnitude-only measurements. MWSCAS (2016)
Todd J. Freeborn, Ahmed S. Elwakil, Costas Psychalinos
Analysis of a rectifier circuit realized with a fractional-order capacitor. ICM (2016)
Todd J. Freeborn, Ahmed S. Elwakil, Brent Maundy
Approximated Fractional-Order Inverse Chebyshev Lowpass Filters. Circuits Syst. Signal Process. 35 (6) (2016)
Todd J. Freeborn, Ahmed S. Elwakil, Brent Maundy
Factors impacting accurate Cole-impedance extractions from magnitude-only measurements. SMC (2016)
Todd J. Freeborn
Comparison of (1+α) Fractional-Order Transfer Functions to Approximate Lowpass Butterworth Magnitude Responses. Circuits Syst. Signal Process. 35 (6) (2016)
Georgia Tsirimokou, Costas Psychalinos, Todd J. Freeborn, Ahmed S. Elwakil
Emulation of current excited fractional-order capacitors and inductors using OTA topologies. Microelectron. J. 55 (2016)
Brent J. Maundy, Ahmed S. Elwakil, Todd J. Freeborn, Anis Allagui
Improved method to determine supercapacitor metrics from highpass filter response. ICM (2016)
Brent J. Maundy, Ahmed S. Elwakil, Todd J. Freeborn, Anis Allagui
Determination of supercapacitor metrics using a magnitude-only method. ISCAS (2016)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Extracting the parameters of the double-dispersion Cole bioimpedance model from magnitude response measurements. Medical Biol. Eng. Comput. 52 (9) (2014)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Simplifying Cole-impedance extraction from the current-excited step response. MWSCAS (2013)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Measurement of Supercapacitor Fractional-Order Model Parameters From Voltage-Excited Step Response. IEEE J. Emerg. Sel. Topics Circuits Syst. 3 (3) (2013)
Todd J. Freeborn
A Survey of Fractional-Order Circuit Models for Biology and Biomedicine. IEEE J. Emerg. Sel. Topics Circuits Syst. 3 (3) (2013)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Accurate time domain extraction of supercapacitor fractional-order model parameters. ISCAS (2013)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Improved Cole-Cole parameter extraction from frequency response using least squares fitting. ISCAS (2012)
Brent Maundy, Ahmed S. Elwakil, Todd J. Freeborn
On the practical realization of higher-order filters with fractional stepping. Signal Process. 91 (3) (2011)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Towards the realization of fractional step filters. ISCAS (2010)
Todd J. Freeborn, Brent Maundy, Ahmed S. Elwakil
Field programmable analogue array implementation of fractional step filters. IET Circuits Devices Syst. 4 (6) (2010)