Journal of electromagnetic engineering and science

  • 제17권1호
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  • Pages.39-43
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  • 2017
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Co-Simulation for Systematic and Statistical Correction of Multi-Digital-to-Analog-Convertor Systems

  • Park, Youngcheol (Department of Electronics Engineering, Hankuk University of Foreign Studies) ;
  • Yoon, Hoijin (Department of Computer Engineering, Hyupsung University)
  • 투고 : 2016.11.22
  • 심사 : 2017.01.17
  • 발행 : 2017.01.31
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초록

In this paper, a systematic and statistical calibration technique was implemented to calibrate a high-speed signal converting system containing multiple digital-to-analog converters (DACs). The systematic error (especially the imbalance between DACs) in the current combining network of the multi-DAC system was modeled and corrected by calculating the path coefficients for individual DACs with wideband reference signals. Furthermore, by applying a Kalman filter to suppress noise from quantization and clock jitter, accurate coefficients with minimum noise were identified. For correcting an arbitrary waveform generator with two DACs, a co-simulation platform was implemented to estimate the system degradation and its corrected performance. Simulation results showed that after correction with 4.8 Gbps QAM signal, the signal-to-noise-ratio improved by approximately 4.5 dB and the error-vector-magnitude improved from 4.1% to 1.12% over 0.96 GHz bandwidth.

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참고문헌

  1. K. A. Remley, P. D. Hale, D. F. Williams, and C. M. Wang, "A precision millimeter-wave modulated-signal source," in Proceedings of IEEE International Microwave Symposium Digest, Seattle, WA, 2013, pp. 1-3.
  2. K. A. Remley, D. F. Williams, P. D. Hale, C. M. Wang, J. A. Jargon, and Y. C. Park, "Millimeter-wave modulatedsignal and error-vector-magnitude measurement with uncertainty," IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 5, pp. 1710-1720, 2015. https://doi.org/10.1109/TMTT.2015.2416180
  3. D. F. Williams, P. D. Hale, and K. A. Remley, "The sampling oscilloscope as a microwave instrument," IEEE Microwave Magazine, vol. 8, no. 4, pp. 59-68, 2007. https://doi.org/10.1109/MMW.2007.383954
  4. Tektronix, "Understanding AWG70000A series frequency response and DAC performance (Application Note: 76W-29216-0), 2013 [Online]. Available: www.tek.com/dl/76W_29216_0_MR_Letter.pdf.
  5. W. C. Black and D. A. Hodges, "Time interleaved converter arrays," IEEE Journal of Solid-State Circuits, vol. 15, no. 6, pp. 1022-1029, 1980. https://doi.org/10.1109/JSSC.1980.1051512
  6. C. A. Schmidt, J. E. Cousseau, J. L. Figueroa, B. T. Reyes, and M. R. Hueda, "Efficient estimation and correction of mismatch errors in time-interleaved ADCs," IEEE Transactions on Instrumentation and Measurement, vol. 65, no. 2, pp. 243-254, 2016. https://doi.org/10.1109/TIM.2015.2490378
  7. A. Bhide and A. Alvandpour, "Timing challenges in highspeed interleaved ${\Delta}\Sigma$ DACs," in Proceedings for 2014 International Symposium on Integrated Circuits (ISIC), Singapore, 2014, pp. 46-49.
  8. Y. Park and H. Yoon, "Time- and frequency-domain optimization of sparse multisine coefficients for nonlinear amplifier characterization," Journal of Electromagnetic Engineering and Science, vol. 15, no. 1, pp. 53-58, 2015. https://doi.org/10.5515/JKIEES.2015.15.1.53
  9. Y. Park and K. A. Remley, Two-stage correction for wideband wireless signal generators with time-interleaved digital- to-analog-converters," in Proceedings of 2014 83rd ARFTG Microwave Measurement Conference, Tempa, FL, 2014, pp. 1-4.
  10. M. S. Grewal and A. P. Andrews, Kalman Filtering: Theory and Practice. Upper Saddle River, NJ: Prentice-Hall, 1993.

피인용 문헌

  1. Fast characterization of frequency response in high-speed signal generators with frequency-interleaving technique vol.105, 2017, https://doi.org/10.1016/j.measurement.2017.03.039
  2. Multiport Signal-Flow Analysis to Improve Signal Quality of Time-Interleaved Digital-to-Analog Converters vol.E101.C, pp.8, 2018, https://doi.org/10.1587/transele.E101.C.685