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IMPROVED DYNAMIC RANGE FOR MULTI-TONE SIGNAL USING MODEL-BASED PRE-DISTORTION

Carolina Luque A., Niclas Björsell
  • Abstract:
    Some test and measurement applications require higher dynamic range for multi-tone signals than a signal generator can generate. Moreover, for other applications it can be interesting to improve the performance of a “low cost” signal generator. The spectral purity of generated signals can be improved by using pre-distorted base-band signals. In this paper, a dynamic grey-box model is described. A pre-distorter is used in order to improve the dynamic range. The results, which are based on measurements, show an improved dynamic range for a three-tone signal of approximately 9 dB and an improved ACPR of 5 dB for a WCDMA signal.
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  • DOI:
    _unreg_tc4-2008.012

Event details:

  • IMEKO TC:
    TC4
  • Event name:
    IWADC 2008
  • Title:

    13th IMEKO TC4 Workshop on ADC Modelling and Testing IWADC (together with XVIth IMEKO TC4 International Symposium on Electrical Measurements and Instrumentation) (IWADC)

  • Place:
    Florence, ITALY
  • Time:
    22 September 2008 - 24 September 2008