Differentially randomized quantization in sigma-delta analog-to-digital converters

机译：sigma-delta模数转换器中的差分随机量化

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Sigma-Delta Modulators often suffer from non-ideal effects that are due to the strongly correlated nature of the quantization errors. This paper proposes a differentially randomized quantization scheme that is optimal in the sense that the quantization errors become uncorrelated to the input signal and possess a constant variance that is exclusively determined by the quantizer resolution. The application of the proposed quantizer to Sigma-Delta Modulators allows to optimize both dynamic range and spurious signal suppression without to degrade the overall signal-to-noise ratio.

机译：Sigma-Delta调制器经常遭受非理想效果，这是由于量化误差的强相关性质。本文提出了一种差异随机化的量化方案，其在定量化误差对输入信号中不相关并具有由量化器分辨率确定的恒定方差的感觉上是最佳的。所提出的量化器到Sigma-Delta调制器的应用允许优化动态范围和杂散信号抑制，而不会降低整体信噪比。

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《Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on》|2001年|P.1057-1060|共4页
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Berndt; H.; Jentschel; H.-J.;
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中图分类无线电电子学、电信技术;
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4. Differentially randomized quantization in sigma-delta analog-to-digital converters [C] . Holger Berndt, Hans-Joachim Jentschel IEEE International Conference on Electronics, Circuits and Systems . 2001

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Differentially randomized quantization in sigma-delta analog-to-digital converters

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