基于时延功率级数的ADC非线性建模

2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI:10.1109/AMS.2008.34

Peng Juan, Ma Hong, Tian Chen

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引用次数: 4

摘要

模数转换器(ADC)的非线性误差限制了信号处理系统的性能，识别出的ADC模型可以用来估计一个逆校准模型来补偿误差。本文提出了一种新的基于时延的功率序列建模方法来识别考虑相位效应的ADC非线性行为。仿真和实验结果表明，校正前后的无杂散动态范围(SFDR)验证了ADC非线性模型的有效性和准确性。

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Modeling of ADC Nonlinearity by Time-Delay-Based Power Series

Analog-to-digital converter (ADC) nonlinear errors limit the performance of signal-processing systems, Identified ADC model could be used to estimate an inverse calibration model in order to compensate the errors. This paper presents a novel time-delay-based power series modeling method to identify ADC nonlinear behavior considering phase effect. Also, simulations and experimental results are given, spurious-free dynamic range (SFDR), evaluated before and after calibration, proves the validity and accuracy of the ADC nonlinearity model.

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2008 Second Asia International Conference on Modelling & Simulation (AMS)

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