| 多片ADC并行采集系统的误差时域测量与校正 |
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| 引用本文： | 张清洪,吕幼新,王洪,刘霖,ZHANG Qing-Hong,Lü You-xin,WANG Hong,LIU Lin.多片ADC并行采集系统的误差时域测量与校正[J].电讯技术,2005,45(3):189-193. |
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| 作者姓名： | 张清洪 吕幼新 王洪 刘霖 ZHANG Qing-Hong Lü You-xin WANG Hong LIU Lin |
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| 作者单位： | 电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054;电子科技大学,电子工程学院,四川,成都,610054 |
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| 摘 要： | 并行时间交替采样是提高系统最大采样率的有效方法之一,但由于制造工艺的局限性,并行时间交替采样将不可避免地造成通道失配误差。本文利用正弦采样信号的时域特性,推导出一种快速而精确的算法,用于同时校正通道失配引起的增益误差、偏置误差和时间误差,并通过模拟仿真证明了算法的可行性。
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| 关 键 词： | 数据采集 时间交替 增益误差 时间误差 偏置误差 时域测量 |
| 文章编号： | 1001-893X(2005)03-0189-05 |
Time-domain Measurement and Calibration of Mismatch Errors in Multi-chip ADC Time-interleaved Systems |
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| ZHANG Qing-Hong,WANG Hong,LIU Lin.Time-domain Measurement and Calibration of Mismatch Errors in Multi-chip ADC Time-interleaved Systems[J].Telecommunication Engineering,2005,45(3):189-193. |
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| Authors: | ZHANG Qing-Hong WANG Hong LIU Lin |
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| Abstract: | Time-interleaved ADC system is an efficient method to increase the system's maximum sampling rate. Because of the limit of the manufacture techniques, time-interleaved ADC system will cause the mismatch errors between different channels. In this paper, a new method based on the sinusoidal signal's time-domain characteristics is given to calibrate the offset errors, gain errors, and sample-time errors between time-interleaved channels rapidly and accurately. And the simulation results are given to illustrate the availability of this method. |
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| Keywords: | Data acquisition Time-interleaved Gain errors Time-skew errors Offset errors Time-domain measurement |
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