Phase-tracking loop based on delta-sigma oversampling architecture

Abstract— 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 an simplest design of the signal processing circuit and some simulation results.

• Type: Conference
• Year: 2006
• Where: ISCAS
• Authors: Yuichiro Orino, Minoru Kuribayashi Kurosawa, Takashi Katagiri
• Keywords: Direct Signal Processing, ISCAS 2006, Signal Processing, Signal Processing Circuit