An Algorithm to Improve the Performance of M-Channel Time-Interleaved A-D Converters(Analog Signal Processing)

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概要

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• One method for achieving high-speed waveform digitizing uses time-interleaved A-D Converters (ADCs). It is known that, in this method, using multiple ADCs enables sampling at a rate higher than the sampling rate of the ADC being used. Degradation of the dynamic range, however, results from such factors as phase error in the sampling clock applied to the ADC, and mismatched frequency characteristics among the individual ADCs. This paper describes a method for correcting these mismatches using a digital signal processing (DSP) technique. This method can be applied to any number of interleaved ADCs, and it does not require any additional hardware; good correction and improved accuracy can be obtained simply by adding a little to the computing overhead.

• 社団法人電子情報通信学会の論文
• 2007-12-01

著者

• Asami Koji

  Advantest Corp. Gunma‐ken Jpn

関連論文

• An Algorithm to Evaluate Imbalances of Quadrature Mixers
• Technique to Improve the Performance of Time-Interleaved A-D Converters with Mismatches of Non-linearity
• An Algorithm to Improve the Performance of M-Channel Time-Interleaved A-D Converters(Analog Signal Processing)

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