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首页> 外文期刊>Metrology and Measurement Systems: Metrologia i Systemy Pomiarowe >SEVERAL APPROACHES TO ADC TRANSFER FUNCTION APPROXIMATION AND THEIR APPLICATION FOR ADC NON-LINEARITY CORRECTION
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SEVERAL APPROACHES TO ADC TRANSFER FUNCTION APPROXIMATION AND THEIR APPLICATION FOR ADC NON-LINEARITY CORRECTION

机译：ADC传递函数逼近的几种方法及其在ADC非线性校正中的应用

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摘要

The performance of current electronic devices is mostly limited by analog front-end and analog-to-digital converter's (ADC) actual parameters. One of the most important parameters is ADC nonlinearity. The correction of this imperfection can be accomplished in the output data but only if the nonlinearity is well characterized. Many approaches to ADC characterization have been proposed in scientific articles in the last several years. In this paper three different approximations of ADC low-frequency non-linearity (common polynomials, Chebyshev polynomials and Fourier series) were analyzed and the practical applicability, approximation accuracy and noise sensitivity were investigated. The first results of nonlinearity correction were presented, too.
机译：当前的电子设备的性能主要受模拟前端和模数转换器（ADC）的实际参数限制。 ADC非线性是最重要的参数之一。可以在输出数据中完成此缺陷的校正，但前提是必须很好地表征非线性。过去几年，科学文章中已经提出了许多ADC表征方法。本文分析了ADC低频非线性的三种不同近似值（通用多项式，Chebyshev多项式和傅立叶级数），并研究了其实用性，近似精度和噪声灵敏度。还介绍了非线性校正的第一个结果。

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