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电子学报  2013 

一种高速并行采样实时校正方法研究

DOI: 10.3969/j.issn.0372-2112.2013.01.029, PP. 166-170

Keywords: 并行交替采样,实时校正,时间非均匀,幅度非均匀

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Abstract:

并行交替采样带来的非均匀误差严重影响采集性能。本文建立了并行交替采集系统的数学模型,实现了一种幅度非均匀误差校正的归一化算法,在误差校正系统中引入可程控参考校正源,再利用查表法同时校正系统的偏置和增益失配误差,然后对时间非均匀性参数进行估计,并通过高精度可编程时钟延时网络对其修正。实验结果表明,该校正方法实时性好,降低了硬件设计难度和成本,提高了系统性能。

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