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Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator | IEEE Conference Publication | IEEE Xplore

Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using an Arbitrary Waveform Generator


Abstract:

This paper describes algorithms for generating low distortion single-tone and two-tone sine waves, for testing ADCs,using an arbitrary waveform generator (AWG). The AWG c...Show More

Abstract:

This paper describes algorithms for generating low distortion single-tone and two-tone sine waves, for testing ADCs,using an arbitrary waveform generator (AWG). The AWG consists of DSP and DAC, and the nonlinearity of the DAC generates distortion components. We propose here to use DSPalgorithms to precompensate for the distortion. The DSP part of the AWG can interleave two or four signals with the same frequency but different phase at the input to the DAC, in order to precompensate for distortion caused by DAC nonlinearity. Theoretical analysis, simulation, and experimental results all demonstrate the effectiveness of this approach.
Date of Conference: 16-18 May 2011
Date Added to IEEE Xplore: 19 January 2012
ISBN Information:
Conference Location: Santa Barbara, CA, USA

References

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