Signal Processing and Speech Communication Laboratory
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Christian Vogel

Position
Adjunct Professor
Email
vogel@tugraz.at

Christian Vogel was born in Graz, Austria, in 1975. He received the Dipl.-Ing. degree in telematics, the Dr. techn. degree in electrical engineering, and the Venia Docendi in analog and digital signal processing from Graz University of Technology, Austria in 2001, 2005, and 2013, respectively. From 2006 to 2007 Dr. Vogel was Assistant Professor at Graz University of Technology, from 2008 to 2009 he was an Erwin Schrödinger postdoctoral research fellow at the S ignal and Information Processing Laboratory at ETH Zurich, Switzerland, and from 2010 to 2014 he was key researcher at the Telecommunications Research Center Vienna (FTW). He is currently head of the insitute of electronic engineering and leading the degree program electronics and computer engineering at FH Joanneum - University of Applied Sciences, Austria and Adjunct Professor at Graz University of Technology, Austria. His research interests include the theory and design of digital, analog, and mixed-signal processing systems with emphasis on communications systems and digital enhancement techniques. He worked on all-digital phased-locked loops, transmitter architectures, digital predistortion, vehicular communications, GPS receivers, and factor graphs, but is most known for his contributions to the understanding and further development of time-interleaved ADCs. Dr. Vogel is author and co-author of more than 70 international journal and conference papers, holds several international patents, and is the co-author of five papers that have received best paper awards including the 2009 IEEE Circuits and Systems Society Outstanding Young Author Award and the 2014 IEEE Circuits and Systems Darlington Best Paper Award.


Research Programs
Research Projects
Courses
Student Projects
PhD Theses
Publications
  • Journal article Enzinger H., Freiberger K. & Vogel C. (2018) Competitive linearity for envelope tracking. in IEEE Microwave Magazine, 19(1), p. 69. [more info] [doi]
  • Conference paper Freiberger K., Enzinger H. & Vogel C. (2017) The error power ratio estimates EVM for a wide class of impairments. in 2017 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2017. [more info] [doi]
  • Journal article Freiberger K., Enzinger H. & Vogel C. (2017) A Noise Power Ratio Measurement Method for Accurate Estimation of the Error Vector Magnitude. in IEEE Transactions on Microwave Theory and Techniques, 65(5), p. 1632-1645. [more info] [doi]
  • Conference paper Enzinger H., Freiberger K. & Vogel C. (2016) A joint linearity-efficiency model of radio frequency power amplifiers. in IEEE International Conference on Circuits and Systems. [more info]
  • Conference paper Freiberger K., Wolkerstorfer M., Enzinger H. & Vogel C. (2015) Digital predistorter identification based on constrained multi-objective optimization of WLAN standard performance metrics. in IEEE International Symposium on Circuits and Systems (pp. 862-865). [more info] [doi]
  • Conference paper Enzinger H., Freiberger K. & Vogel C. (2015) Analysis of even-order terms in memoryless and quasi-memoryless polynomial baseband models. in IEEE International Symposium on Circuits and Systems (pp. 1714-1717). [more info] [doi]
  • Conference paper Hotz M. & Vogel C. (2014) Block Processing with Iterative Correction Filters for Time-Interleaved ADCs. in 2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (pp. 4961-4965). [more info] [doi]
  • Conference paper Enzinger H. & Vogel C. (2014) Analytical Description of Multilevel Carrier-Based PWM of Arbitrary Bounded Input Signals. in IEEE International Symposium on Circuits and Systems (pp. 1030-1033). [more info] [doi]
  • (Old data) Lecture or Presentation Singerl P., Mataln M., Schuberth C., Dielacher F., Seebacher D., Vogel C. & Hausmair K. (2013) Implementation of a 2.6 GHz, 5-W Carrier Bursting Switched Mode Transmitter.. [more info]
  • Conference paper Hausmair K., Chi S. & Vogel C. (2013) How to reach 100% coding efficiency in multilevel burst-mode RF transmitters. in IEEE International Symposium on Circuits and Systems (pp. 2255-2258). [more info] [doi]
  • Conference paper Chi S., Hausmair K. & Vogel C. (2013) Coding efficiency of bandlimited PWM based burst-mode RF transmitters. in IEEE International Symposium on Circuits and Systems (pp. 2263-2266). [more info] [doi]
  • Habilitation Vogel C. (2013) Digitally Enhanced Mixed-Signal Processing Systems.. [more info]
  • Journal article Geiger B. & Vogel C. (2013) Influence of Doppler Bin Width on GPS Acquisition Probabilities. in IEEE Transactions on Aerospace and Electronic Systems, 49(4), p. 2570-2584. [more info] [doi]
  • Other report Bolliger L., Loeliger H. & Vogel C. (2013) LMMSE estimation and interpolation of continuous-time signals from discrete-time samples using factor graphs.. [more info]
  • Journal article Hausmair K., Chi S., Singerl P. & Vogel C. (2013) Aliasing-Free Digital Pulse-Width Modulation for Burst-Mode RF Transmitters. in IEEE Transactions on Circuits and Systems I: Regular Papers, 60(2), p. 415-427. [more info] [doi]
  • Journal article Chi S., Singerl P. & Vogel C. (2013) Efficiency Optimization for Burst-Mode Multilevel Radio Frequency Transmitters. in IEEE Transactions on Circuits and Systems I: Regular Papers, 60(7), p. 1901-1914. [more info] [doi]
  • Conference paper Vogel C., Hotz M., Saleem S., Hausmair K. & Soudan M. (2012) A Review on Low-Complexity Structures and Algorithms for the Correction of Mismatch Errors in Time-Interleaved ADCs. in IEEE International New Circuits and Systems Conference (pp. 349-352). [more info] [doi]
  • Conference paper Bernadó L., Zemen T., Czink N., Fuxjäger P., Sanchez F., Shivaldova V., Mecklenbräuker C., Paier A., Smely D., Jandrisits M., Rainer B. & Vogel C. (2012) Wireless Communications for Intelligent Transportation Systems. in World Congress on Intelligent Transport Systems (pp. 1-9). [more info]
  • Patent Vogel C. & Singerl P. (2012) System and Method for Generating a Pulse-width Modulated Signal.. [more info]
  • Journal article Soudan M. & Vogel C. (2012) Correction Structures for Linear Weakly Time-Varying Systems. in IEEE Transactions on Circuits and Systems I: Regular Papers, 59(9), p. 2075-2084. [more info] [doi]
  • Journal article Geiger B., Vogel C. & Soudan M. (2012) A Comparison Between Ratio Detection and Threshold Comparison for GNSS Acquisition. in IEEE Transactions on Aerospace and Electronic Systems, 48(2), p. 1772-1779. [more info] [doi]
  • Conference paper Chi S., Singerl P. & Vogel C. (2011) Coding Efficiency Optimization for Multilevel PWM Based Switched-Mode RF Transmitters. in Midwest Symposium on Circuits and Systems (pp. 1-4). [more info] [doi]
  • Conference paper Soudan M. & Vogel C. (2011) On the Correction of Linear Time-varying Systems by Means of Time-varying FIR Filters. in Midwest Symposium on Circuits and Systems (pp. 1-4). [more info] [doi]
  • Conference paper Soudan M. & Vogel C. (2011) Low Complexity Least-Squares Filter Design for the Correction of Linear Time-varying Systems. in European Conference on Circuit Theory and Design (pp. 690-693). [more info] [doi]
  • Journal article Saleem S. & Vogel C. (2011) Adaptive Blind Background Calibration of Polynomial-Represented Frequency Response Mismatches in a Two-Channel Time-Interleaved ADC. in IEEE Transactions on Circuits and Systems I: Regular Papers, 58(6), p. 1300-1310. [more info] [doi]
  • Journal article Zemen T., Czink N., Bernadó L. & Vogel C. (2011) Funkkommunikation für intelligente Verkehrssysteme - Status und Ausblick. in Elektrotechnik und Informationstechnik, 128(7-8), p. 276-281. [more info] [doi]
  • (Old data) Lecture or Presentation Vogel C., Nordström T., Trautmann S. & Kubin G. (2010) Energy Efficient Analog Front Ends for Access Networks through Digital Signal Processing - A Contribution to Green ICT.. [more info]
  • Conference paper Saleem S. & Vogel C. (2010) Adaptive Compensation of Frequency Response Mismatches in High-Resolution Time-Interleaved ADCs using a Low-Resolution ADC and a Time-Varying Filter. in IEEE International Symposium on Circuits and Systems (pp. 561-564). [more info]
  • Conference paper Chi S., Vogel C. & Singerl P. (2010) The Frequency Spectrum of Polar Modulated PWM Signals and the Image Problem. in IEEE International Conference on Electronics, Circuits and Systems (pp. 685-688). [more info] [doi]
  • Conference paper Bolliger L., Loeliger H. & Vogel C. (2010) Simulation, MMSE estimation, and interpolation of sampled continuous-time signals using factor graphs. in Information Theory and Applications Workshop (pp. 1-4). [more info]
  • Conference paper Geiger B., Soudan M. & Vogel C. (2010) On the Detection Probability of Parallel Code Phase Search Algorithms in GPS Receivers. in IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (pp. 864-869). [more info]
  • Conference paper Berglez P., Seybold J., Geiger B., Soudan M., Vogel C., Abart C., Singh A. & Hofmann-Wellenhof B. (2010) Development of a Dual Frequency Software-based GNSS Receiver. in ION GNSS (pp. 1967-1974). [more info]
  • Conference paper Saleem S. & Vogel C. (2010) On Blind Identification of Gain and Timing Mismatches in Time-Interleaved Analog-to-Digital Converters. (pp. 151-155). [more info]
  • Patent Mendel S. & Vogel C. (2010) Frequency to Phase Converter with Uniform Sampling for all Digital Phase Locked Loops.. [more info]
  • Chapter Vogel C. (2010) A Signal Processing View on Time-interleaved ADCs. 1 ed.. [more info]
  • Conference paper Dielacher F., Vogel C., Singerl P., Mendel S. & Wiesbauer A. (2009) A Holistic Design Approach for Systems on Chip. in IEEE International SOC Conference (pp. 301-306). [more info]
  • Conference paper Johansson H. & Vogel C. (2009) Efficient design and implementation of sampling rate conversion, resampling, and signal reconstruction. in International Conference on Sampling Theory and Applications (pp. 1-4). [more info]
  • Conference paper Mendel S., Vogel C. & Dalt N. (2009) Signal and Timing Analysis of a Phase-Domain All-Digital Phase-Locked Loop with Reference Retiming Mechanism. in International Conference on Mixed Design of Integrated Circuits and Systems (pp. 681-687). [more info]
  • Journal article Vogel C. & Krall C. (2009) Digital Compensation of In-Band Image Signals Caused by M-Periodic Nonuniform Zero-Order Hold Signals. in Ubiquitous Computing and Communication Journal, p. 1-10. [more info]
  • Journal article Vogel C. & Mendel S. (2009) A Flexible and Scalable Structure to Compensate Frequency Response Mismatches in Time-Interleaved ADCs. in IEEE Transactions on Circuits and Systems I: Regular Papers, 56(11), p. 2463-2475. [more info] [doi]
  • Journal article Vogel C., Mendel S., Singerl P. & Dielacher F. (2009) Digital Signal Processing for Data Converters in Mixed-Signal Systems. in Elektrotechnik und Informationstechnik, 126(11), p. 390-395. [more info] [doi]
  • Journal article Mendel S., Vogel C. & Dalt N. (2009) A Phase-Domain All-Digital Phase-Locked Loop Architecture without Reference Clock Retiming. in IEEE Transactions on Circuits and Systems, Part II: Express Briefs , 56(11), p. 860-864. [more info]
  • Conference paper Vogel C., Saleem S. & Mendel S. (2008) Adaptive Blind Compensation of Gain and Timing Mismatches in M-Channel Time-Interleaved ADCs. in IEEE International Conference on Electronics, Circuits and Systems (pp. 49-52). [more info]
  • Conference paper Mendel S. & Vogel C. (2008) Improved Lock-Time in All-Digital Phase-Locked Loops due to Binary Search Acquisition. in IEEE International Conference on Electronics, Circuits and Systems (pp. 384-387). [more info]
  • Conference paper Vogel C. & Krall C. (2008) Compensation of Distortions Caused by Periodic Nonuniform Holding Signals. in 6th International Symposium on Communication Systems, Networks and Digital Signal Processing (pp. 152-155). [more info]
  • Conference paper Vogel C. (2008) Compensation of Two-periodic Nonuniform Holding Signal Distortions by Using a Variable FIR Filter. in International Conference on Signals and Electronic Systems (pp. 323-326). [more info]
  • Conference paper Murmann B., Vogel C. & Koeppl H. (2008) Digitally Enhanced Analog Circuits: System Aspects. in IEEE International Symposium on Circuits and Systems (pp. 560-563). [more info]
  • Journal article Tertinek S. & Vogel C. (2008) Reconstruction of Nonuniformly Sampled Bandlimited Signals Using a Differentiator-Multiplier Cascade. in IEEE Transactions on Circuits and Systems I: Regular Papers, 55(8), p. 2273-2286. [more info] [doi]
  • Conference paper Krall C., Vogel C. & Witrisal K. (2007) Time-Interleaved Digital-to-Analog Converters for UWB Signal Generation. in International Conference on Ultra Wide-Band (pp. ---). [more info]
  • Conference paper Mendel S. & Vogel C. (2007) On the Compensation of Magnitude Response Mismatches in M-channel Time-interleaved ADCs. in IEEE International Symposium on Circuits and Systems (pp. 3375-3378). [more info]
  • Conference paper Mendel S. & Vogel C. (2007) A z-Domain Model and Analysis of Phase-Domain All-Digital Phase-Locked Loops. in NORCHIP Conference (pp. 1-4). [more info]
  • Conference paper Saleem S. & Vogel C. (2007) LMS-Based Identification and Compensation of Timing Mismatches in a Two-Channel Time-Interleaved Analog-to-Digital Converter. in NORCHIP Conference (pp. 1-4). [more info]
  • Patent Vogel C. & Draxelmayr D. (2007) System for reconstruction of non-uniformly sampled signals.. [more info]
  • Journal article Tertinek S. & Vogel C. (2007) Reconstruction of Two-Periodic Nonuniformly Sampled Bandlimited Signals Using a Discrete-Time Differentiator and a Time-Varying Multiplier. in IEEE Transactions on Circuits and Systems, Part II: Express Briefs , 54(7), p. 616-620. [more info] [doi]
  • Conference paper Mendel S. & Vogel C. (2006) A Compensation Method for Magnitude Response Mismatches in Two-Channel Time-Interleaved Analog-to-Digital Converters. in IEEE International Conference on Electronics, Circuits and Systems (pp. 712-715). [more info]
  • Conference paper Vogel C. (2006) A Frequency Domain Method for Blind Identification of Timing Mismatches in Time-Interleaved ADCs. in IEEE Norchip Conference (pp. 45-48). [more info]
  • Conference paper Vogel C. & Johansson H. (2006) Time-Interleaved Analog-to-Digital Converters: Status and Future Directions. in IEEE International Symposium on Circuits and Systems (pp. 3386-3389). [more info]
  • Patent Vogel C., Draxelmayr D. & Kubin G. (2006) Zeitversetzt arbeitender Analog-Digital-Wandler.. [more info]
  • Patent Vogel C., Kubin G. & Draxelmayr D. (2006) Analog-to-digital converter operable with staggered timing.. [more info]
  • Conference paper Vogel C., Draxelmayr D. & Kubin G. (2005) Spectral Shaping of Timing Mismatches in Time-Interleaved ADCs. in IEEE International Symposium on Circuits and Systems (pp. 1394-1397). [more info]
  • Conference paper Vogel C., Pammer V. & Kubin G. (2005) A Novel Channel Randomization Method for Time-Interleaved ADCs. in IEEE Instrumentation and Measurement Technology Conference (pp. 150-155). [more info]
  • Conference paper Singerl P. & Vogel C. (2005) A Fast and Accurate Automatic Gain Control for a Wireless Local Area Network Receiver. (pp. 34-38). [more info]
  • Patent Vogel C., Draxelmayr D. & Kuttner F. (2005) Schaltungsanordnung zum Kompensieren von Nichtlinearitäten von zeitversetzt arbeitenden Analog-Digital-Wandler.. [more info]
  • Patent Draxelmayr D., Vogel C. & Kuttner F. (2005) Circuit arrangement for compensation for nonlinearities from analog/digital converters operating with different timing.. [more info]
  • Patent Vogel C., Draxelmayr D. & Kuttner F. (2005) Schaltungsanordnung zum Verzögerungsabgleich von zeitversetzt arbeitenden Analog-Digital-Wandlern.. [more info]
  • Patent Vogel C., Draxelmayr D. & Kuttner F. (2005) Circuit arrangement for the delay adjustment of analog-to-digital converters operating in a temporally offset manner.. [more info]
  • Doctoral Thesis Vogel C. (2005) Modeling, Identification, and Compensation of Channel Mismatch Errors in Time-Interleaved Analog-to-Digital Converters.. [more info]
  • Journal article Vogel C. & Kubin G. (2005) Modeling of Time-interleaved ADCs with Nonlinear Hybrid Filter Banks. in AEÜ = International Journal of Electronics and Communications, 59(5), p. 288-296. [more info] [doi]
  • Journal article Vogel C. (2005) The Impact of Combined Channel Mismatch Effects in Time-Interleaved ADCs. in IEEE Transactions on Instrumentation and Measurement, 54(1), p. 415-427. [more info] [doi]
  • Conference paper Vogel C. & Kubin G. (2004) Analysis and Compensation of Nonlinearity Mismatches in Time-Interleaved ADC Arrays. in IEEE International Symposium on Circuits and Systems (pp. 593-596). [more info]
  • Conference paper Singerl P. & Vogel C. (2004) An Analysis of a Low Complexity Received Signal Strength Indicator for Wireless Applications. in Austrochip 2004 (pp. 57-60). [more info]
  • Conference paper Vogel C., Draxelmayr D. & Kuttner F. (2004) Compensation of Timing Mismatches in Time-Interleaved Analog-to-Digital Converters through Transfer Characteristics Tuning. in Midwest Symposium on Circuits and Systems (pp. 349-352). [more info]
  • Conference paper Vogel C. & Kubin G. (2004) Time-Interleaved ADCs in the Context of Hybrid Filter Banks. (pp. 214-217). [more info]
  • Commissioned report Vogel C. (2004) Work report on the project Digital Correction of Analog Signal Processing Errors in Fast Analog-to-Digital Converters.. [more info]
  • Conference paper Vogel C. & Köppl H. (2003) Behavioral Modeling of Time-Interleaved ADCs using MATLAB. in Austrochip 2003 (pp. 45-48). [more info]
  • Commissioned report Vogel C. (2003) Work report on the project Digital Correction of Analog Signal Processing Errors in Fast Analog-to-Digital Converters.. [more info]
  • Diploma Thesis Vogel C. (2001) Urheberrechtsschutz im digitalen Zeitalter: Analyse der technischen Möglichkeiten.. [more info]