周期性非均匀保持信号引起的畸变补偿

2008 6th International Symposium on Communication Systems, Networks and Digital Signal Processing Pub Date : 2008-07-25 DOI:10.1109/CSNDSP.2008.4610774

C. Vogel, C. Krall

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引用次数: 8

摘要

研究了数模转换器(dac)中周期性非均匀保持信号引起的失真补偿。这样的保持信号会引入额外的失真，从而大大降低DAC的性能。介绍了这种保持信号的离散时间模型，并设计了时变滤波器对其进行补偿。对于两个周期非均匀保持信号，我们举例说明了滤波器的设计。仿真和测量结果表明，所设计的滤波器显著降低了带内失真。

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Compensation of distortions caused by periodic nonuniform holding signals

We investigate the compensation of distortions caused by periodic nonuniform holding signals in digital-to-analog converters (DACs). Such holding signals can introduce additional distortions, which reduce the DAC performance considerably. A discrete-time model of such holding signals is introduced and the design of a time-varying filter to compensate them is elaborated. For two periodic nonuniform holding signals, we exemplify the filter design. The designed filter reduces the in-band distortions significantly, which is verified by simulations and measurements.

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来源期刊

2008 6th International Symposium on Communication Systems, Networks and Digital Signal Processing

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