一种用于分析带带宽限制高斯输入的σ调制器的改进离散时间模型

IEEE International Conference on Communications, - Spanning the Universe. Pub Date : 1988-06-12 DOI:10.1109/ICC.1988.13643

J. Stonick, S. Ardalan

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引用次数: 2

摘要

利用线性化增益对二阶δ σ调制器进行分析，以模拟与比较器和积分器饱和相关的非线性。为该模型导出了包含九个未知数的九个方程。仿真结果表明，饱和积分器确实可以提高信噪比

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An improved discrete time model for the analysis of Delta Sigma modulators with bandlimited Gaussian inputs

A second-order Delta Sigma modulator is analyzed using linearized gains to model the nonlinearities associated both with the comparator and with the saturation of the integrators. A set of nine equations in nine unknowns is derived for this model. Simulations results are presented that show that saturation of the integrators can actually increase the SNR.<>

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IEEE International Conference on Communications, - Spanning the Universe.

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