Phase-tracking loop based on delta-sigma oversampling architecture
Phase-tracking loop based on delta-sigma oversampling architecture
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基于delta-sigma过采样架构的相位跟踪环
DOI：
10.1109/iscas.2006.1693451
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
T. Katagiri
中科院分区：
文献类型：
--
作者：
Y. Orino;M. Kurosawa;T. Katagiri
本文提出了一种新的过采样架构，用于实现相位跟踪环路，该环路通常用于位置传感器，例如同步器、旋转变压器和增量编码器。该架构由三级级联组成：粗量化和过采样调制、直接信号处理和抽取滤波。预计过采样策略和信号处理会提高检测相位以及过采样 A/D 转换器的分辨率。本文展示了信号处理电路的最简单设计和一些仿真结果
This paper presents a new oversampling architecture for implementing phase-tracking loop that is commonly utilized for position sensors such that synchro, resolver, and incremental encoder. This architecture consists of the cascade connection of three stage: coarse-quantizing and oversampling modulation, direct signal processing, and decimation filtering. It is expected that the oversampling strategy and the signal processing increase the resolution of detecting phase as well as oversampling A/D converters. This paper shows a simplest design of the signal processing circuit and some simulation results